Chapter 5- Basic Programming. YASKAWA P7C Drive Configured, P7S Slim Configured Package, P7 Drive

Below you will find brief information for Drive P7U. This Drive is a Pulse Width Modulated Drive designed for 3-Phase AC induction motors, perfect for HVAC applications like fans, blowers, and pumps. It features built-in network communications (Modbus), PI control, parameter storage, and copy functions, allowing you to easily manage and control your systems. This variable torque AC drive offers a new benchmark in size, cost, performance, and quality.

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Document

Chapter 5 Basic Programming

This Manual contains descriptions of all user accessible parameters contained in the Drive.

Parameters are listed in alpha-numerical order. Parameter number and name, along with a detailed description and its settings are described on the following pages.

A1 Initialization.................................................................................. 5-2 b1 Sequence..................................................................................... 5-4 b2 DC Braking .................................................................................. 5-9 b3 Speed Search .............................................................................5-11 b5 PI Function................................................................................. 5-15 b8 Energy Savings.......................................................................... 5-24

C1 Accel/Decel ............................................................................... 5-25 d2 Reference (Speed Command) Limits......................................... 5-26 d3 Jump Frequencies ..................................................................... 5-27

E1 V/f Pattern ................................................................................. 5-28

E2 Motor Setup............................................................................... 5-31

F6 Com OPT Selection ................................................................... 5-32

H3 Analog Inputs ............................................................................ 5-33

L2 Momentary Power Loss Ride-thru Function............................... 5-39

L3 Stall Prevention .......................................................................... 5-40

L4 Speed Command Loss Detection .............................................. 5-43

L5 Fault Restart .............................................................................. 5-44

L6 Torque Detection........................................................................ 5-46

L8 Hardware Protection .................................................................. 5-48 o1 Monitor Configuration ................................................................ 5-50 o2 Key Selections ........................................................................... 5-54 o3 Digital Operator Copy Function ................................................. 5-56

T1 Auto-Tuning ............................................................................... 5-59

Programming 5 - 1

Basic Programming Parameters

The initialization group contains parameters associated with initial set-up of the Drive. Parameters involving the display language, access levels, initialization and password are located in this group.

A1 Initialization

A1-00 Select Language

Setting

Description

English (factory default)

Japanese

Deutsch

Francais

Italiano

Espanol

Portuguese

The setting of parameter A1-00 determines which international language the Drive will use to display non-numerical text. The

A1-00 parameter will not be changed by an Initialization of the drive (A1-03= “1110: User Initialize”, “2220: 2-Wire Initial”, or “3330: 3-Wire Initial”).

If the Drive is accidentally set to a language unfamiliar to the operator, locating the parameter to change the operator language can be done by performing the following:

1. Press the MENU key until the “-ADV-” MENU is shown in the upper left corner of the digital operator.

2. Press the DATA/ENTER key to enter the programming menu. The first parameter shown is A1-00 (Select Language).

3. Press the DATA/ENTER key again and use the INCREASE and DECREASE arrow keys to choose the preferred language from the list below:

0 : English

1 : Japanese

2 : Deutsch (German)

3 : Francais (French)

4 : Italiano (Italian)

5 : Español (Spanish)

6 : Portugu s (Portuguese)

A1-01 Access Level Selection

Setting

Description

Operation Only

User Level

Advanced Level (factory default)

A1-01 can be used to allow access to and permission to change all Drive parameters. If the Drive is programmed for Operation

Only (A1-01= “0: Operation Only”), then only the OPERATION and the PROGRAMMING menus are accessible. Within the

PROGRAMMING menu only parameters A1-01 and A1-04 are adjustable.

Programming 5 - 2

If A1-01 is configured for Advanced Access (A1-01= “2: Advanced Level”), then all menus and all parameters are shown. If the

Access Level Selection is set to Advanced, all parameters should be adjustable unless:

1. The Drive parameters are password protected (A1-04) which will prevent access to A1-00 through A1-03 and all A2 parameters.

2. A digital input has been configured as a Program Lockout (H1-0X= 1B) is active.

3. During serial communication writing, if a parameter change is also attempted via the digital operator, a

“BUSY - WRITE PROTECTED” message will display. Parameter change will not be possible from the digital operator until an Enter command is received via the serial communication to finish the serial writing process.

A1-03 Initialize Parameters

Setting

1110

2220

3330

Description

No Initialize (factory default)

User Initialize

2-Wire Initialize

3-Wire Initialize

The Drive can be set back to one of three default states via the A1-03 parameter.

1. User Initialization – 1110: The modified Drive parameters are returned to the values selected as user settings. User settings are stored when parameter o2-03= “1: Set Defaults”.

2. 2-Wire Initialization – 2220: The Drive parameters are returned to factory default values with digital inputs S1 and S2 configured as Forward Run and Reverse Run, respectively.

3. 3-Wire Initialization – 3330: The Drive parameters are returned to factory default values with digital inputs S1, S2, and S5 configured as Run, Stop, and Forward/Reverse respectively.

After an initialization is performed, parameter A1-03 will automatically be set back to 0.

FWD Run/Stop

Stop switch

(NC contact)

Operation switch

(NO contact)

REV Run/Stop

S3 or S5

2-wire control

3-wire control

Run command

(run on momentary close)

Stop command

(stop on momentary open)

Forward/reverse command

(multi-function input)

Sequence input common

Fig. 1, 2 & 3-Wire Control Wiring Examples

IMPORTANT

Some parameters are unaffected by either the 2-Wire or 3-Wire initialization. The following parameters will not be reset when parameter A1-03=2220 or 3330:

A1-00

E1-03 o2-04

Language Selection

V/f Pattern Selection kVA Selection

Programming 5 - 3

b1 Sequence

The Sequence Group contains parameters associated with starting and stopping the Drive. Parameters involving the Run

Command, Speed Reference location, Stopping Method and Hand/Auto changeover are located in this group.

b1-01 Reference (Speed Command) Source Selection

Setting

Description

Operator - Digital Preset Speed d1-01

Terminals - Analog Input Terminal A1 (or Terminal A2, see Parameter H3-13)

Serial Com - RS-485 Terminals R+, R-, S+ and S-

Option PCB - Option Board connected at 2CN

In order to run the Drive and motor, the Drive must receive a Run command and a speed command. Parameter b1-01 specifies from where the speed command is received when in the “Auto mode. Switching into the “Auto” mode can be done by pressing the AUTO button on the digital operator while the Drive is stopped.

IMPORTANT

If a Run command is input to the Drive but no corresponding speed command is input, the Run indicator on the digital operator will turn on and the STOP indicator on the digital operator will blink.

If you want the Drive to follow the speed command set by the digital operator: Use the “Hand” mode by pressing the hand key or set b1-01= “0: Operator”. The speed command can then be entered into the U1-01 monitor parameter in the “-DRIVE-”

Menu.

If you want the Drive to follow an “Auto” analog speed command: Set b1-01= “1: Terminals”, and connect a 0 – 10 Vdc speed command signal between terminals A1 and AC or a 4 – 20 mA speed command signal to terminals A2 and AC.

If you want the Drive to receive the speed command from serial communication: Set b1-01= “2: Serial Com”, and connect the RS-485/422 serial communications cable to terminals R+, R-, S+, and S- on the control I/O terminal block.

If you want to use L ON W ORKS ® to input a speed command: Set b1-01= “3: Option PCB”, and plug a L ON W ORKS

® option board (p/n SI-J) into the 2CN port on the Drive Control PCB. Consult the manual supplied with the option board for instructions on integrating the Drive into the L ON W ORKS

System.

IMPORTANT

If b1-01= “3: Option PCB” but a L

ORKS

® card is not installed in 2CN, an OPE05 Operator Programming

Error will be displayed on the digital operator and the Drive will not run.

b1-02 Run Source

Setting

Description

Operator

Terminals (factory default)

Serial Com

Option PCB

Programming 5 - 4

To successfully operate the Drive remotely, an external run command must be received by the Drive. Parameter b1-02 specifies from where the run command will be accepted.

Although the Run Source and the Reference Source (b1-01) are normally taken from the same source (e.g. digital operator, terminals or serial communication), this is not always the case.

To issue a run command from the digital operator: Set b1-02= “0: Operator”, and use the HAND and OFF buttons to start and stop the Drive.

To issue the run command from the terminals: Set b1-02= “1: Terminals”, and select between 2-wire and 3-wire control operation by doing the following:

2-Wire Control The factory default setting is for 2-wire operation. In the 2-wire configuration a closure between S1 and SN will be interpreted as a Forward Run command by the Drive. A closure between S2 and SN will be interpreted as a Reverse

Run command. If both S1 and S2 are closed, the Drive will stop (decelerate to zero speed) and the digital operator will display an EF (external fault) alarm (Flashing).

FWD Run/Stop

REV Run/Stop

Fig. 2 2-Wire Control

3-Wire Control When any of the multi-function digital input parameters, H1-01 through H1-05, is set to 0, terminals S1 and

S2 become Run and Stop, respectively. The multi-function digital input that was set to 0 will function as a Forward/Reverse input for the Drive. When the Forward/Reverse input is open the Drive will run in the Forward direction and when the input is closed, the Drive will run in the Reverse direction.

In 3-wire operation a momentary closure (> 50mS) of S1 will cause the Drive to run provided that S2 is held closed. The Drive will stop anytime the S2-SN connection is broken. If the 3-wire configuration is implemented via a 3-wire Initialization

(A1-03= “3330: 3-Wire Initial”), then terminal S3 becomes the Forward/Reverse input.

Stop switch

(NC contact)

Operation switch

(NO contact)

S3 or S5

Run command

(run on momentary close)

Stop command

(stop on momentary open)

Forward/reverse command

(multi-function input)

Sequence input common

Fig. 3 3-Wire Control

To issue a run command via serial communication

:

Set b1-02= “2: Serial Com” and connect the RS-485/422 serial communication cable to R+, R-, S+, and S- on the removable terminal block.

To issue the Run command via the L ON W ORKS ® option card: Set b1-02= “3: Option PCB”, and plug a L ON W ORKS

option board (p/n SI/J) into the 2CN port on the Control PCB. Consult the manual supplied with the option board for instructions on integrating the Drive into your L ON W ORKS

System.

IMPORTANT

If b1-01= “3: Option PCB” but a L

ORKS

® card is not installed in 2CN, an “OPE05” operator programming error will be displayed on the digital operator and the Drive will not run.

Programming 5 - 5

b1-03 Stopping Method

There are four methods of stopping the Drive when the Run command is removed.

Setting

Description

Ramp to Stop (factory default)

Coast to Stop

DC Injection to Stop

Coast w/Timer

“0:Ramp to stop”: When the Run command is removed, the Drive will decelerate the motor to 0 rpm. The rate of deceleration is determined by the active deceleration time. The factory default Decel Time is in parameter C1-02.

When the output frequency has dropped below the DC Injection Start Frequency in b2-01 (Default = 0.5HZ) DC current will be injected in the motor at a level determined by b2-02 (50% Default). The DC Injection condition will occur for the time specified by b2-04 (0.0 Default), to establish the end point of the ramp. DC injection can be used to insure the motor is at zero rpm prior to the Drive shutting off.

Run Command

(CLOSED)

OFF

(OPEN)

100 % b2-01

Output Frequency Deceleration Time (C1-02)

0 %

DC Injection Brake

| b2-04 |

TIME

Fig. 4 Deceleration to Stop

The actual deceleration time can be determined by the following formula

Time to Stop

Output Freq.

at time of stop command

Maximum Frequency (E1 04)

Setting of active Decel Time (C1 02 or C1-04)

If S-Curve characteristics are specified by the Drive programming, they will add to the total time to stop.

“1:Coast to stop”: When the Run command is removed, the Drive will turn off its output and the motor will coast (uncontrolled deceleration). The friction of the driven equipment will eventually overcome any residual inertia of the system and the rotation will stop.

Run Command

ON (CLOSED)

OFF (OPEN)

100 %

Output Frequency

0 %

Motor Speed

Drive Output Frequency Interrupted

TIME

Fig. 5 Coast to Stop

Programming 5 - 6

IMPORTANT

After a stop is initiated, a subsequent Run commands input before the Minimum Baseblock Time (L2-03) has expired, will be ignored.

2:DCInj to Stop: When the Run command is removed, the Drive will Baseblock (turn off its output) for the Minimum

Baseblock Time (L2-03). Once the Minimum Baseblock Time has expired, the Drive will inject DC current into the motor windings to lock the motor shaft. The stopping time will be reduced as compared to Coast to Stop. The level of DC

Injection current is set by parameter b2-02 (50% Default). The DC Injection brake time is determined by the set value in b2-04 and the output frequency at the time the Run command is removed.

DC Injection Brake Time

(b2 04)

Output Frequency

Maximum Frequency (E1 04)

Run Command

(CLOSED)

OFF

(OPEN) b2-04 x 10

100 %

Output Frequency

0 %

Drive Output Voltage Interrupted

Minimum Baseblock

Time (L2-03)

DC Injection Brake

DC Injection Brake Time b2-04

Fig. 6 DC Injection Braking to Stop b2-04

10%

100% (Maximum

Output Frequency)

IMPORTANT

If an overcurrent (OC) fault occurs during DCInj to Stop, lengthen the Minimum Baseblock Time (L2-03) until the fault no longer occurs.

3:Coast w/Timer: When the Run command is removed, the Drive will turn off its output and the motor will coast to a stop.

If a Run command is input before time T (operation wait time) expires, the Drive will not run and the Run command will need to be cycled before operation can occur . The time T (operation wait time) is determined by the output frequency when the Run command is removed and the active deceleration time (C1-02).

Ignored

Run Command

(CLOSED)

OFF

(OPEN)

Deceleration

Time (C1-02)

100 %

Output Frequency

0 %

Drive Output

Voltage

Interrupted

Minimum

Baseblock

Time (L2-03)

Minimum

Output

Frequency

100% (Maximum

Output

Frequency)

Output Frequency at Stop Command Input

(C1-02)

Fig. 7 Coast to Stop with Timer

Programming 5 - 7

b1-04 Reverse Operation

Setting

Description

Reverse Enabled

Reverse Disabled (factory default)

Exchange Phase

ExchgPhs, Rev Dsbl

For some applications reverse motor rotation is not applicable and may even cause problems (e.g., air handling units, pumps, etc.). Setting parameter b1-04 to 1 or 3 will cause the Drive to ignore any inputs for reverse operation. Setting parameter b1-04 to either 2 or 3 will change the motor shaft rotation when a Forward Run command is given by exchanging the order of the output phasing.

The factory default setting of parameter b1-04 is “1: Disabled”. When b1-04= “1: Disabled”, reverse operation is prohibited and no exchanging of output phasing occurs.

Drive terminal S2 is a dedicated input for reverse Run/Stop.

b1-07 Local/Remote Run Selection

Setting

Description

Cycle Extern Run (factory default)

Accept Extrn Run

When the Drive is switched between the Local (Hand) mode (the digital operator) to the Remote (Auto) mode (determined by b1-01 and b1-02), there is the possibility that a Run command is already present (i.e. a contact closure between S1 and SN when b1-02= “1: Terminals”). Parameter b1-07 determines whether the Drive will:

Ignore the external Run command until it is removed and re-instated (b1-07= “0: Cycle Extern Run”)

Accept the already present Run command and immediately begin acceleration to the commanded speed

(b1-07= “1: Accept Extrn Run”).

IMPORTANT

When switching from local mode to Auto mode when b1-07=“1: Accept Extrn Run” the Drive may start unexpectedly if the Run command is already applied. Be sure all personnel are clear of rotating machinery and electrical connections prior to switching between local mode and Auto mode.

b1-08 Run Command Selection During Programming

Setting

Description

Disabled (factory default)

Enabled

As a safety precaution, the Drive will not normally respond to a Run input when the digital operator is being used to adjust parameters. If it is necessary that external Run commands be recognized even while the Drive is being programmed, set b1-08= “1: Enabled”.

Programming 5 - 8

b1-11 Drive Delay Time Setting

Setting Range: 0 to 600 Seconds

Factory Default: 0 Seconds

If a time is set into parameter b1-11, the Drive will delay executing any run command until the b1-11 time has expired.

During Drive delay time execution, the digital operator will display:

DDLY

Waiting to RUN

Both the ALARM and Run indicators will blink while the Drive waits to execute the Run command.

b1-12 Hand Frequency Reference Selection

Setting

Description

Operator (factory default)

Terminals

When the Drive is put into the HAND mode, by pressing the HAND key while in Operation, the Speed Command will be set via the digital operator by default. If it is desirable to have the Speed Command input from the terminals instead of the digital operator, set b1-12= “1: Terminals”.

IMPORTANT

When the Speed Command is set via the terminals, parameter H3-13 will determine whether analog input terminal A1 or A2 is the Speed Command.

b2 DC Braking

The DC Braking Group contains parameters associated with the DC injection braking feature. Parameters involving the starting frequency, current level, braking time, and motor pre heat current level are located here .

b2-01 DC Injection Braking Start Frequency

Setting Range: 0.0 to 10.0 Hz

Factory Default: 0.5 Hz

Parameter b2-01 sets the output frequency where the Drive begins DC Injection during Ramp to stop. in order to lock the rotor of the motor and established the end point of the ramp. If b2-01 < E1-09 (Minimum Frequency), then DC Injection begins at

E1-09.

Parameter b2-01 also determines the output frequency that the Drive must be at or below before a Zero Speed condition is considered true. This affects any digital output configured as a Zero Speed signal (H2-0x= “1: Zero Speed”).

Programming 5 - 9

Output Frequency

| b2-04

| b2-01 t ime

DC injection

Fig. 8 DC Injection Braking During Stopping

b2-02 DC Injection Braking Current

Setting Range: 0 to 100%

Factory Default: 50%

The level of DC Injection Braking Current affects the strength of the magnetic field attempting to lock the motor shaft.

Increasing the level of current will increase the amount of heat generated by the motor windings and should only be increased to the level necessary to hold the motor shaft. DC Injection current is set in percentage of Drive rated output current. Drive rated output current is stated on the Drive nameplate.

b2-03 DC Injection Braking Time at Start b2-04 DC Injection Braking Time at Stop

Setting Range: 0.00 to 10.00 Seconds

Factory Default: 0.00 Seconds

The Drive can be programmed to automatically DC Inject for a predetermined amount of time prior to accelerating to speed

(b2-03) and/or at the end of a Ramp to stop (b2-04). Parameter b2-03 can be used to stop a rotating motor prior to attempting acceleration (i.e. a wind milling fan). If DC Injection braking at start or Speed Search is not enabled, attempting to drive a spinning motor may cause nuisance tripping.

Parameter b2-04 can be used to resist any residual motion of the load after the deceleration has finished.

DC injection

Output Frequency b2-03 b2-04

Fig. 9 DC Injection Braking During Starting and Stopping

Parameter b2-04 also serves the function of affecting the length of time DC Injection to stop (b1-03= “2: DC Injection to

Stop”) will occur.

Programming 5 - 10

b2-09 Motor Pre-Heat Current

Setting Range: 0 to 100%

Factory Default: 0%

A DC current can be circulated within the motor windings while the motor is stopped. The current will produce heat within the motor and prevent condensation. Parameter b2-09 determines the percentage of Drive rated output current that will be used for the motor pre-heat function. This function can be useful in applications where the motor sits for extended periods of time in humid conditions. Motor pre-heating can only be initiated by closing a digital input programmed as a Motor Pre-heat

Input ( H1-0x= 60). Check with the motor manufacturer to determine the maximum acceptable current level the motor can withstand when stopped. Be sure not to exceed the motor manufacturers recommended level.

b3 Speed Search

The Speed Search function allows the Drive to determine the speed of a motor shaft that is being driven by rotational inertia.

Speed Search will allow the Drive to determine the speed of the already rotating motor and begin to ramp the motor to a set speed without first having to bring it to a complete stop. When a momentary loss of supply power is experienced, the Drive output is turned off. This results in a coasting motor. When power returns, the Drive can determine the speed of the coasting motor and start without requiring it to be brought to minimum speed. Speed Search can be programmed to always be active by setting b3-01 or it can be commanded by remote contact closure by setting a digital input.

There are two forms of Speed Search in the Drive, the speed estimation method and the current detection method.

IMPORTANT

When setting the Drive for remote Speed Search input, via a contact closure, the method of Speed Search is determined by the setting of b3-01. If b3-01= “0: SpdsrchF Disable” then the remote input will initiate speed estimation method, and if b3-01= “2: SpdsrchI Disable”, then the remote input will start the current detection method.

Parameters L2-03 and L2-04 also affect the current detection method of Speed Search operation.

b3-01 Speed Search Selection

This parameter is effective only when the Drive is given a new “RUN” command.

Setting

Description

SpdsrchF Disable

SpdsrchF Enable

SpdsrchI Disable (factory default)

SpdsrchI Enable

Speed Estimation: Method (b3-01= 0 or 1) The speed estimation method will calculate the speed using measurements of residual motor fields. The speed estimation version is bi-directional and will determine both the motor speed and direction. To enable speed estimation Speed Search at start, set b3-01= “1: SpdsrchF Enable”.

IMPORTANT

If the speed estimation method of Speed Search is to be used, then Auto-tuning must be performed prior to using Speed Search. If the length of cable between the Drive and motor is ever changed after Auto-tuning then Auto-tuning should be performed again.

Programming 5 - 11

IMPORTANT

The speed estimation mode cannot be used when there are multiple motors operated by one Drive or the motor is two or more frames smaller than the standard size motor per the Drive capacity.

AC power supply

Output frequency

ON OFF

Start using speed detected

Set frequency reference

Output current

10 ms

Minimum baseblock time (L2-03) x 0.75 *1

Minimum baseblock time (L2-03) x 0.75*1

*1 Baseblock time may be reduced by the output frequency

immediately before the baseblock.

minimum Speed Search Wait Time (b3-05).

Fig. 10 Speed Search (Estimated Speed Method) after momentary power loss where the power loss time is less than the minimum baseblock time

AC power supply

Output frequency

ON OFF

Start using speed detected

Set frequency reference

Output current

10 ms

Minimum baseblock time

(L2-03)

Speed Search Wait Time

(b3-05)

Note: If the frequency immediately before the baseblock is low or the power supply break time is long, operation may be the same as the search in case 1.

Fig. 11 Speed Search (Estimated Speed Method) after momentary power loss where the power loss time exceeds the minimum baseblock time

Current Detection Method (b3-01=2 or 3): The current detection method starts searching from a predetermined frequency while monitoring the Drive output current to determine when the rotor speed and the Drive output speed (frequency) match.

The current detection version is not bi-directional. To enable current detection Speed Search at start set b3-01= “3: SpdscrhI enable” and program any digital input equal to Speed Search 1 (H1-0x= 61) or Speed Search 2 (H1-0x= 62). Speed Search 1 will start searching from the max. frequency (E1-04) and ramp down to meet the rotor speed. Speed Search 2 will start searching from the set frequency and ramp down to meet the rotor speed.

IMPORTANT

If a UV1 fault occurs when current detection Speed Search is attempted, increase the setting of L2-04

Programming 5 - 12

IMPORTANT

If an OC fault occurs when Speed Search is attempted after power loss recovery, increase the setting of L2-03.

Run command

OFF ON

Maximum output frequency or set frequency

Output frequency

Deceleration time set in b3-03

Set frequency reference b3-02 Speed search current level

Output current

Minimum baseblock time

(L2-03)

Fig. 12 Speed Search (Current Detection Method) at Startup

AC power supply

Output frequency

ON OFF Output frequency before power loss

Deceleration time set in b3-03

Set frequency reference b3-02 speed search operating current

Output current

Minimum baseblock time (L2-03)

*1 Baseblock time may be reduced by the output frequency

immediately before baseblock.

*2 After AC power supply recovery, motor waits for the minimum

Fig. 13 Speed Search (Current Detection Method) after momentary power loss where the power loss time is less than the minimum baseblock time

AC power supply ON OFF Output frequency before power loss

Set frequency reference

Output frequency b3-02

Speed search operating time

Setting of b3-01

Output current

Speed search wait time (b3-05)

Minimum baseblock time

(L2-03)

Fig. 14 Speed Search (Current Detection Method) after momentary power loss where the power loss time exceeds the minimum baseblock time

Automatic Speed Search for all RUN commands

Yes - Speed Estimation

Yes - Current Detection

Speed Search Settings and Methods

Automatic Speed Search after momentary power loss and baseblock

Yes - Speed Estimation

Yes - Current Detection

Speed Search Used for Run with programmed multi-function input

Yes - Speed Estimation

Yes - Current Detection

Programming 5 - 13

b3-02 Speed Search Deactivation Current

Setting Range: 0 to 200% of Drive rated output current

Factory Default: 120% of Drive rated output current

When using the current detection method of Speed Search, parameter b3-02 sets the current level that will determine when the search is complete and the rotor and output speeds match. When the output frequency is higher than the actual rotor speed the slip causes the current to be high. As the output frequency is lowered, the closer it comes to the rotor speed, the lower the current draw will be. When the output current drops below the level as set in b3-02 (100% = Drive Rated Current) the output frequency stops decreasing and normal operation resumes.

b3-03 Speed Search Deceleration Time

Setting Range: 0.1 to 10.0 Seconds

Factory Default: 2.0 Seconds

Parameter b3-03 sets the deceleration ramp used by the current detection method of Speed Search when searching for the motor’s rotor speed. Even if Speed Search 2 is selected, for Speed Search at start, the time entered into b3-03 will be the time to decelerate from maximum frequency (E1-04) to minimum frequency (E1-09).

b3-05 Speed Search Delay Time

Setting Range: 0.0 to 20.0 Seconds

Factory Default: 0.2 Seconds

In cases where an output contactor is used between the Drive and the motor, extra waiting time is provided after power returns and before Speed Search is performed. This extra time allows for the contactor to operate. When Speed Search at start is used, b3-05 will serve as the lower limit of the Minimum Baseblock Time (L2-03).

b3-14 Bi-Directional Speed Search Selection

Setting

Description

Disabled

Enabled (factory default)

The b3-14 parameter can be used to turn off the bi-directional capabilities of the Speed Estimation form of Speed Search. By turning off the bi-directional capability, the speed search will only try to match the speed in the last known direction.

Programming 5 - 14

b5 PI Function

The capability to accept an analog signal as feedback for a PI (Proportional + Integral) control function is built into the Drive.

D1-04

D1-02

D1-01

Option Card b1-01

Serial Com

1 0

PI Differential

Fdbk. H3-09=16

Frequency Reference using multi-step command

Frequency reference

(U1-01) b5-01=0

PI control is OFF under the following conditions:

- b5-01=0

- During JOG command input

Enable / Disable reverse operation when PI output is negative

Sleep function selection b5-21

b5-16

Delay

Timer b5-15

Sleep Level

Sleep Function

RUN on/off

Terminal A1

MEMOBUS Reg. 06H

PI target value

PI SFS cancel

H1-xx=34

PI SFS b5-17

Reg. 0Fh, bit 1

1 0

1 b5-20 b5-18

Scaling

PI Differential

Fdbk. H3-09=16

Scaling o1-03 b5-01=3 b5-01=1 OFF

+ b5-11

Upper limit

Fmax x109%

1 Lower limit 0

Upper limit

Fmax x109%

Output frequency

SFS

Sleep function selection b5-21

0 b5-22

PI Snooze Level b5-23

Delay

Timer

Snooze

PI Snooze Function

Constant b5-19

Terminal A1

Terminal A2

PI Set Point

(U1-38)

Scaling b5-20

PI Input

(U1-36)

Lower limit

Fmax x109%

PI Differential

Fdbk. H3-09=16

H3-09=B

PI Feedback 2

(U1-53)

0 b5-28

PI Differential

Fdbk. H3-09=16

PI SFS cancel

H1-xx=34

PI SFS b5-17

1 0

H3-09=16

PI Input

PI Feedback

(U1-24) b5-20

Scaling

H1-xx=35

Z -1

I-time b5-03

1/t

Proportional gain b5-02

Integral Hold

H1-xx=31

Sleep function selection b5-21

I - limit b5-04

Z -1

+ +

Integral Reset

H1-xx=30

PI Snooze Function b5-29

0 or 1

Wake Up

PI Differential

Fdbk. H3-09=16 b5-24

PI Wake Up Level

PI offset

(b5-07)

PI Limit b5-06

PI delay time b5-08

1/t

Z -1

PI Output

Characteristic b5-09

PI Differential

Fdbk. H3-09=16

0 b5-07

PI offset

PI Output

Gain b5-10

1 0 b5-30

PI output monitor

(U1-37)

Fig. 15 PI Block Diagram

The analog feedback to the Drive for the PI control is via the A2 terminal. The Drive must be programmed (H3-09= “B: PI

Feedback”) to use terminal A2 as feedback for the PI functionality of the Drive.

The PI setpoint can be configured to come from one of many different inputs or parameters. The table below describes the options for originating the PI setpoint.

Table 1 PI Setpoint Options

The PI Setpoint will be read from:

If these conditions are true

Status of b5-18

Status of

Modbus

0Fh bit 1

Status of b1-01

= 1

= 0

N/A

Parameter b5-19

Modbus Register

06H

D1-01

Terminal A1

Serial Comm.

Option PCB

= 0

OFF

= 0

= 1

= 2

= 3

Programming 5 - 15

In some situations there are two feedback inputs. The drive can be programmed to maintain a set differential between two analog signals. If input A2 is configured as a “PI Differential Mode” (H3-09= “16: PI Differential”), then the Drive will maintain a set difference between the measurements read on inputs A1 and A2. This differential setpoint is programmed by parameter

(b5-07).

b5-01 PI Mode

Setting

Description

Disabled (factory default)

Enabled

Fref+PI

The Drive can be used as a stand-alone PI controller. If PI functionality is selected by parameter b5-01, the Drive will adjust its output to cause the feedback from a transmitter to match the PI setpoint (b5-19). The setting of b5-01 will determine whether PI functionality is disabled (b5-01= “0: Disabled”), enabled (b5-01= “1: Enabled”), or enable with the output of the PI function used to trim a Speed Command (b5-01= “3: Fref+PI”).

b5-02 Proportional Gain Setting

Setting Range: 0.00 to 25.00

Factory Default: 2.00

The proportional gain will apply a straight multiplier to the calculated difference (error) between the PI Setpoint and the measured transmitter feedback at terminal A2. A large value will tend to reduce the error but may cause instability (oscillations) if too high. A small value may allow to much offset between the setpoint and feedback (See Figure 16 below).

b5-03 Integral Time Setting

Setting Range: 0.0 to 360.0 Seconds

Factory Default: 5.0 Seconds

The Integral factor of PI functionality is a time-based gain that can be used to eliminate the error (difference between the setpoint and feedback at steady state). The smaller the Integral Time set into b5-03, the more aggressive the Integral factor will be. To turn off the Integral Time, set b5-03= 0.00.

Feedback

Setpoint Setpoint

Offset

Feedback

No Integral

TIME

With Integral

Fig. 16 PID Feedback Response Characteristics

Programming 5 - 16

TIME

Zero offset with

Integral Action

b5-04 Integral Limit Setting

Setting Range: 0.0 to 100.0%

Factory Default: 100.0%

On some applications, especially those with rapidly varying loads, the output of the PI function may have large oscillations. To suppress these oscillations, a limit can be applied to the integral factor by programming b5-04.

b5-06 PI Output Limit

Setting Range: 0.0 to 100.0%

Factory Default: 100.0%

Places a cap on the output of the PI function. Limiting the PI function may help to prevent large overshoots in the Drive’s response to error (the difference between the setpoint and the feedback).

b5-07 PI Offset Adjustment

Setting Range: -100.0% to +100.0%

Factory Default: 0.0%

The PI Offset Adjustment parameter has two different uses. Parameter b5-07 serves different functions depending on whether it is used on a standard PI loop or a Differential PI loop.

Parameter b5-07 causes an offset to be applied to the output of the PI function in a non-Differential PI loop. Every time the PI output is updated, the offset (b5-07) is summed with the PI output. This can be used to artificially kick-start a slow starting PI loop.

If the Drive is configured for Differential PI Regulation (H3-09= “16: PI differential”), then this parameter is the target setpoint for the differential to be maintained between the signal measured on analog input A1 and the signal measured on analog input A2.

b5-08 PI Primary Delay Time Constant

Setting Range: 0.00 to 10.00 Seconds

Factory Default: 0.00 Seconds

Acts as a time based filter that lowers the responsiveness of the PI function, but also makes the function more stable when the setpoint varies rapidly or when the feedback is noisy.

b5-09 PI Output Level Selection

Setting

Description

Normal Output (direct acting) (factory default)

Reverse Output (reverse acting)

Normally, the output of the PI function causes an increase in motor speed whenever the measured feedback is below the setpoint. This is referred to as direct acting response. However, if b5-09= “1: Reverse Output”, the output of the PI function causes the motor to slow down when the feedback is below the setpoint. This is referred to as reverse acting response.

Programming 5 - 17

b5-10 PI Output Gain Setting

Setting Range: 0.0 to 25.0

Factory Default: 1.0

Applies a multiplier to the output of the PI function. Using the gain can be helpful when the PI function is used to trim the

Speed Command. Increasing b5-10 causes the PI function to have a greater regulating affect on the speed command.

b5-11 PI Reverse Selection

Setting

Description

0 Limit (factory default)

Reverse

Parameter b5-11 determines whether reverse operation is allowed while using PI control (b5-01

≠

0). The factory default setting will not allow the Drive to run in reverse. This parameter does not need to be changed from factory default for a majority of

HVAC applications. (Refer also to b5-09).

b5-12 PI Feedback Reference Missing Detection Selection

Setting

Description

Disabled (factory default)

Alarm

Fault

Loss of feedback can cause problems to a PI application. The Drive can be programmed to turn on a digital output whenever a loss of feedback occurs. Feedback Loss Detection is turned on by b5-12. When b5-12= “1: Alarm”, the Drive acknowledges the loss of feedback without stopping or turning on the fault output (MA-MB). If b5-12= “2: Fault”, the Drive coasts to a stop and turns on the fault output if the feedback is determined to be lost.

b5-13 PI Feedback Loss Detection Level

Setting Range: 0 to 100%

Factory Default: 0%

b5-14 PI Feedback Loss Detection Time

Setting Range: 0.0 to 25.0 Seconds

Factory Default: 1.0 Seconds

The Drive interprets feedback loss whenever the feedback signal drops below the value of b5-13 and stays below that level for at least the time set into b5-14. See Figure below for timing details.

Measured

Feedback b5-13

T T

TIME

T = b5-14

ON (CLOSED) t OFF (OPEN)

Fig. 17 Loss of PI Feedback Feature

Programming 5 - 18

b5-15 Sleep Function Start Level

Setting Range: 0.0 to 200.0 Hz

Factory Default: 0.0 Hz

b5-16 Sleep Delay Time

Setting Range: 0.0 to 25.5 Seconds

Factory Default: 0.0 Seconds

The Sleep Function can be programmed to prevent running the Drive when the PI loop output or the speed command is so low that no usable work is being done and/or equipment damage may result. The Sleep Function can be Enabled by entering a value in parameter b5-15. If the Drive’s output drops below the level set by the Sleep Function Start Level (b5-15) and remains there at least as long as the delay time determined by the Sleep Delay Time (b5-16), then the Drive’s internal Run command drops out and the Drive output ceases. Though the Drive’s output has ceased, all other Drive functions continue. Once the Drive’s theoretical output returns to a level above the Sleep Function Start Level (b5-15) and remains above that level for at least the

Sleep Delay Time (b5-16), the internal Run command returns and the Drive output begins again. The b5-16 Delay Time prevents oscillation about the sleep level.

Note: The sleep function can be used even if the PI function is disabled (b5-01 = “0: Disabled”).

t

Upper Limit d2-01

Sleep Level b5-15

Fig. 18 Sleep Function Response

b5-17 PI Accel/Decel Time

Setting Range: 0.0 to 25.5 Seconds

Factory Default: 0.0 Seconds

This is a soft start function that is applied to the PI setpoint analog input. Instead of having nearly instantaneous changes in signal levels, there is a programmed ramp applied to level changes. When changing setpoints the error can be limited by gradually ramping the setpoint through the use of parameter b5-17.

b5-18 PI Setpoint Selection

Setting

Description

Disabled (factory default)

Enabled

Programming 5 - 19

In order to use parameter b5-19 as the PI Setpoint, set parameter b5-18= “1: Enabled”. If b5-18= “0: Disabled” the PI Setpoint will either be:

• Modbus Register 06H (If Register 0FH bit 1 is high)

• The active speed command (i.e. Determined by the setting of b1-01). See Table 1 “Setpoint Options”

b5-19 PI Setpoint Value

Setting Range: 0.00 to 100.00%

Factory Default: 0.00%

Parameter b5-19 is for a PI Setpoint value. When b5-18= “1: Enabled”, the value of b5-19 will take precedent over any other

PI setpoint unless the Drive is set up for Differential Feedback, in which case, b5-18 and b5-19 have no affect on the PI function.

b5-20 PI Setpoint Display Scaling

Setting

Hz (factory default)

RPM (Synchronous)

Engineering Units

Description

The PI Setpoint Display Scaling value (b5-20) is a scaling factor that is applied to the monitor display for both the PI Setpoint

(U1-38) and the PI Feedback (U1-24).

Table 2 PI Setpoint Display Scaling Options

If b5-20 is:

2 through 39

(enter the # of motor poles)

40 through 39999

U1-24 and U1-38

Display Increments.

0.01 Hz

0.00%

0 RPM

Engineering Units

If the monitors seem more natural in terms of percentage, set b5-20= 1. If the monitors are easier to work with when displaying the equivalent synchronous RPM, set b5-20= [the number of motor poles].

If another engineered unit, such a fpm or cfm, is desired, set b5-20= xxxxx where

X X X X X

Digit 5 Digit 4 Digit 3 Digit 2 Digit 1

Digits 1 through 4 set the desired number to be displayed at 100% speed.

Digit 5 determines the number of decimal places

If Digit 5 = 0 number format is XXXX

If Digit 5 = 1 number format is XXX.X

If Digit 5 = 2 number format is XX.XX

If Digit 5 = 3 number format is X.XXX

Programming 5 - 20

For example:

If b5-20= 10425 then at 100% output the digital operator would display 42.5 for monitor U1-38 or U1-24.

b5-21 Sleep Source

Setting

Description

SFS Input (Output of PI block)

PI Setpoint (factory default)

Snooze

Parameter b5-21 selects the sleep function characteristic action:

When b5-21= “0: SFS Input” the sleep function start level (b5-15) is compared to the Drive’s output (Speed Command after PI block). This is the setting that should be used for open loop or closed loop control.

It is also possible to have the sleep function start level (b5-15) compared to the Drive input or setpoint. For this special application set b5-21= “1: PI Setpoint”.

When b5-21= “2: Snooze” a variation of the sleep function called “Snooze” is enabled, see parameter b5-22 to b5-27.

IMPORTANT

The sleep function can be used even if the PI function is disabled (b5-01= “0: Disabled”).

b5-22 PI Snooze Level

Setting Range: 0 to 100%

Factory Default: 0%

b5-23 PI Snooze Delay Time

Setting Range: 0 to 3600 Seconds

Factory Default: 0 Seconds

b5-24 PI Snooze Deactivation Level

Setting Range: 0 to 100%

Factory Default: 0%

The Snooze Function is a variation on the Sleep Function. The Snooze function must be selected by setting parameter b5-21= “2: Snooze”. Once the Snooze Function is selected, the Drive monitors the output frequency. If the output frequency drops below the PI Snooze Level (b5-22), and stays below that level for at least the PI Snooze Delay Time (b5-23), the Drive output shuts off. This is different from the Sleep Function because it is the feedback that must drop below the PI Snooze Deactivation Level (b5-24) before normal Drive output will begin again. See Figure 19 below.

b5-25 PI Setpoint Boost Setting

Setting Range: 0 to 100%

Factory Default: 0%

Programming 5 - 21

Just before the Snooze Function is activated, the PI Setpoint can be temporarily increased to create an overshoot of the intended

PI Setpoint. The temporary boost is determined by the PI Setpoint Boost Setting (b5-25). Once the temporary boost level is reached (or the PI Maximum Boost Time (b5-26) is exceeded), the Drive output shuts off (snoozes) and the intended PI Setpoint returns. From this point on, the Snooze Function operates normally and the Drive output returns when the feedback level drops below b5-24. See Figure 20 below.

b5-26 PI Maximum Boost Time

Setting Range: 0 to 3600 Seconds

Factory Default: 0 Seconds

Associated with the Snooze Function. In cases where the temporary PI Setpoint (intended PI setpoint + PI Setpoint Boost) cannot be reached within the PI Maximum Boost Time (b5-26), the Setpoint Boost is interrupted and the Drive output is turned off.

b5-26

PI Output

PI Output b5-22 t

PI Setpoint

PI Setpoint b5-23 t

PI Feedback

PI Feedback b5-24 t b5-23

Snooze

Function

OFF ON OFF

TIME value or the maximum boost

Fig. 19 Snooze Function Operation

b5-27 PI Snooze Feedback Level

Setting Range: 0 to 100%

Factory Default: 60%

This is a second method of initiating the Snooze Function. If the PI feedback level exceeds the PI Snooze Feedback Level

(b5-27), then the Drive output shuts off. Once the PI feedback drops below the PI Snooze Deactivation Level (b5-24) then normal Drive and PI operation return. Snooze activates if both b5-22 and b5-27 conditions are met. There is no time delay for wake-up.

Programming 5 - 22

b5-28 PI Feedback Square Root Function Activation

Setting

Description

Disabled (factory default)

Enabled

If b5-28= “1: Enabled”, the square root of the PI feedback is compared to the PI Setpoint in order to determine appropriate

Drive output to properly regulate the system. This is helpful in cases where the measured feedback is pressure but the PI loop needs to regulate flow.

b5-29 PI Square Root Gain

Setting Range: 0.00 to 2.00

Factory Default: 1.00

A multiplier applied to the square root of the feedback.

b5-30 PI Output Square Root Monitor Selection

Setting

Description

Disabled (factory default)

Enabled

If the PI Function is regulating the flow of a closed loop system by using a pressure feedback, it may be convenient to view the square root of the PI output using monitor U1-37.

Programming 5 - 23

b8 Energy Savings

The energy savings function improves overall system operating efficiency by operating the motor at its highest efficiency. This

is accomplished by continuously monitoring the motor load and adjusting the motor terminal voltage so that the motor always operates near its rated slip frequency. A motor is most efficient when operating near rated slip conditions.

b8-01 Energy Savings Selection

Setting

Description

Disabled (factory default)

Enabled

When the Energy Savings function is enabled (b8-01= “1: Enabled”), the Drive reduces the output voltage to the motor below

the voltage value specified by the programmed V/f pattern whenever the motor load is light. Since torque is reduced during this voltage reduction, the voltage has to return to normal levels when the load returns. The energy savings is realized through improved motor efficiency. The reduced output voltage causes increased rotor slipping even with a light load. A motor is most efficient when operating fully loaded (i.e. operating at rated slip).

b8-04 Energy Saving Coefficient Value

Setting Range: 0.0 to 655.0

Factory Default: Model Dependent

Parameter b8-04 is used in maximizing motor efficiency. The factory setting will be Drive capacity dependant but can be adjusted in small amounts while viewing the kW monitor (U1-08) and running the Drive to minimize the output kW. A larger value typically results in less voltage to the motor and less energy consumption. Too large a value will cause the motor to stall.

b8-05 Power Detection Filter Time

Setting Range: 0 to 2000 mS

Factory Default: 20 mS

The Energy Saving function will search out the lowest output voltage in order to achieve minimum output power usage.

Parameter b8-05 determines how often the output power (kW) is measured and the output voltage is adjusted.

b8-06 Search Operation Voltage Limit

Setting Range: 0 to 100%

Factory Default: 0%

Once Energy Savings is enabled and the optimal energy saving coefficient value has been set, the programmer can have the

Drive further search out the proper voltage to achieve the lowest output power by making minute changes to the output voltage and measuring the output power every b8-05 ms. Parameter b8-06 sets limits to the range over which the voltage will be adjusted in order to minimize the power output. Settings too large a value may allow the motor to stall if the load is applied abruptly.

If b8-06= 0, then the optimum voltage search operation is disabled (but not Energy Savings itself).

Programming 5 - 24

C1 Accel/Decel

C1-01 Acceleration Time 1

C1-02 Deceleration Time 1

C1-03 Acceleration Time 2

C1-04 Deceleration Time 2

Setting Range: 0.0 to 6000.0 Seconds

Factory Default: 30.0 Seconds

C1-01 (Acceleration Time 1) sets the time to accelerate from zero to maximum speed (E1-04). C1-02 (Deceleration Time 1) sets the time to decelerate from maximum speed to zero. C1-01 and C1-02 are the factory default active accel/decel “pair”.

Another accel/decel pair (C1-03 and C1-04) exists that can be activated by a multi-function digital input (H1-0x= 7), or specified by a switch over frequency as programmed in parameter C1-11.

Note: If fan applications employing duct high pressure safety limit switches, it may be necessary to further adjust the deceleration time to avoid high pressure limit trips due to damper closure as the system is shut down. (An alternate solution in this situation is to set parameter b1-03 to “Coast to Stop”).

C1-09 Fast Stop Time

Setting Range: 0.0 to 6000.0 Seconds

Factory Default: 10.0 Seconds

A special deceleration parameter is available for use with emergency or fault operations. Parameter C1-09 will set a special deceleration that can be operated by closing a digital input configured as H1-0x= 15 or H1-0x= 17. A digital input configured as H1-0x= 15 will look for a switch closure before initiating the Fast Stop operation. A digital input configured as

H1-0x= 17 will look for the switch opening before initiating the Fast Stop operation.

Unlike a standard deceleration time, once the Fast Stop operation is initiated even momentarily, the Drive cannot be re-operated until the deceleration is complete, the Fast Stop input is cleared, and the Run command is cycled.

Programming 5 - 25

d2 Reference (Speed Command) Limits

d2-01 Frequency Reference Upper Limit

Setting Range: 0.0 to 110.0%

Factory Default: 100.0%

d2-02 Frequency Reference Lower Limit

Setting Range: 0.0 to 110.0%

Factory Default: 0.0%

The use of parameters d2-01 and d2-02 places limitations on the speed command that the Drive will accept. The parameters are set in units of percentage of the maximum frequency (E1-04) and provide limits on any remote speed command input. By entering upper or lower frequency limits, the Drive programmer can prevent operation of the Drive above or below levels that may cause resonance, equipment damage or discomfort (see also parameter d3-0X). For example, limits may be needed to prevent low speed operation of: Cooling tower fans with gear boxes, pumps with pressure dependent seals, or AHUs with minimum delivery requirements.

Internal Speed Command d2-01 d2-01

Operating

Range

Frequency Reference Upper Limit

Frequency Reference Lower Limit

Set Speed Command

Note: See also the “Sleep” function in Figure 19 for alternate “lower limit” implementation.

Fig. 20 Frequency Reference Upper and Lower Limit Effects on the Speed Command

d2-03 Master Speed Reference Lower Limit

Setting Range: 0.0 to 110.0%

Factory Default: 0.0%

Unlike Frequency Reference Lower Limit (d2-02) which will affect the speed command no matter where it is sourced from

(i.e. analog input, preset speed, jog speed, etc.), the Master Speed Reference Lower Limit (d2-03) sets a low speed threshold that will only affect the analog input that is the active master speed frequency (as determined by parameter H3-13 and

H3-09). This parameter allows a minimum speed to be programmed for the master reference while allowing a lower speed to be set as a jog reference. If the speed commanded by the active master speed frequency is below the setting of d2-03, then the

Drive will operate at the speed specified by d2-03.

Programming 5 - 26

d3 Jump Frequencies

d3-01 Jump Frequency 1 d3-02 Jump Frequency 2 d3-03 Jump Frequency 3

Setting Range: 0.0 to 200.0 Hz

Factory Default: 0.0 Hz

d3-04 Jump Frequency Width

Setting Range: 0.0 to 20.0 Hz

Factory Default: 1.0 Hz

In order to avoid continuous operation at a speed that causes resonance in driven machinery, the Drive can be programmed with jump frequencies that will not allow continued operation within specific frequency ranges. If a speed is commanded that falls within a dead band, or Jump Frequency, the Drive will clamp the frequency reference just below the dead band and only accept higher speed commands when the commanded speed rises above the upper end of the dead band, for increasing references. Similarly, the Drive will clamp the frequency reference just above the dead band and accept lower speed commands when the command speed falls below the lower end of the dead band, for decreasing references.

d3-03 d3-03 d3-02 d3-04 d3-01 d3-04

User Speed

Command

Input

Fig. 21 Jump Frequency Characteristics d3-04

Setting the center point of the dead band with the d3-01 through d3-03 parameters and setting the width of the dead band with parameter d3-04 determines the dead band characteristics. The programmer can set up to three Jump Frequencies. If multiple

Jump Frequencies are programmed the following rule applies: d3-01

< = d3-02

= d3-03

Programming 5 - 27

E1 V/f Pattern

E1-01 Input Voltage Setting

Setting Range: 155.0V to 255.0V (208V/240V Models)

310.0V to 510.0V (480V Models)

Factory Defaults: 208.0V (208V Models)

240.0V (240V Models)

480.0V (480V Models)

Set the Input Voltage parameter (E1-01) to the nominal voltage of the connected AC power supply. This parameter adjusts the levels of some protective features of the Drive (i.e. Overvoltage, Stall Prevention, etc.). E1-01 also serves as the Maximum/

Base Voltage used by the Preset V/Hz curves (E1-03= 0 to D).

E1-03 V/f Pattern Selection

Setting

Description

50 Hz

60 Hz Saturation

50 Hz Saturation

72 Hz

50 Hz VT1

50 Hz VT2

60 Hz VT1

60 Hz VT2

50 Hz HST1

50 Hz HST2

60 Hz HST1

60 Hz HST2

90 Hz

120 Hz

Custom V/f (factory default, with parameter values per setting 1)

Custom w/o limit

The Drive operates utilizing a set V/f pattern to determine the appropriate output voltage level for each commanded speed.

There are 14 different preset V/f patterns to select from with varying voltage profiles, saturation levels (frequency at which maximum voltage is reached), and maximum frequencies.

There are also settings for Custom V/f patterns that will allow the programmer to manually set (“Customize”) the V/f pattern using parameters E1-04 through E1-13.

Using parameter E1-03, the programmer can select one of the preset V/f patterns or chose between a custom V/F pattern with an upper voltage limit (E1-03= “F: Custom V/F”) and a custom V/f pattern without a voltage limit (E1-03= “FF: Custom w/o limit”).

Programming 5 - 28

Specifications E1-03

50Hz

60Hz Saturation

50Hz Saturation

72Hz

Table 3 Preset V/f Patterns

V/f Pattern *1 Specifications E1-03

230

(V)

0 1.3 2.5

(Hz)

230

(V)

0 1.5 3.0

50 60

(Hz)

230

(V)

50Hz

High

Starting

Torque 1

High

Starting

Torque 2

60Hz

High

Starting

Torque 1

High

Starting

Torque 2

90Hz C

50Hz

60Hz

Variable

Torque 1

Variable

Torque 2

Variable

Torque 1

Variable

Torque 2

0 1.5 3.0

60 72

(Hz)

230

(V)

0 1.3

(Hz)

230

(V)

0 1.5

(Hz)

120Hz D

V/f Pattern *1

230

(V)

0 1.3 2.5

(Hz)

230

(V)

0 1.5 3.0

230

(V)

0 1.5 3.0

230

(V)

0 1.5 3.0

(Hz)

60 90

(Hz)

60 120

(Hz)

If one of the custom V/f patterns is selected, then parameters E1-04 through E1-13 will determine the V/F pattern.

Table 3 is for 240V class units only, for 480V class units multiply the voltage value by 2.

IMPORTANT

When a factory Initialization is performed, the setting of E1-03 is unaffected but the settings of E1-04 through

E1-13 are returned to their factory default settings.

E1-04 Maximum Output Frequency

Setting Range: 0.0 to 120.0 Hz

Factory Default: 60.0 Hz

Programming 5 - 29

E1-05 Maximum Output Voltage

Setting Range: 0.0 to 255.0V (240V Models)

0.0 to 510.0V (480V Models)

Factory Defaults: 240.0V (240V Models)

480.0V (480V Models)

E1-06 Base Frequency

Setting Range: 0.0 to 200.0 Hz (settings above 120.0 Hz are currently not supported)

Factory Default: 60.0 Hz

E1-07 Mid Output Frequency A

Setting Range: 0.0 to 200.0 Hz (settings above 120.0 Hz are currently not supported)

Factory Default: 3.0 Hz

E1-08 Mid Output Voltage A

Setting Range: 0.0 to 255.0V (240V Models)

0.0 to 510.0V (480V Models)

Factory Defaults: 18.0V (240V Models)

33.6V (480V Models)

E1-09 Minimum Output Frequency

Setting Range: 0.0 to 200.0 Hz (settings above 120.0 Hz are currently not supported)

Factory Default: 1.5 Hz

E1-10 Mid Output Voltage

Setting Range: 0.0 to 255.0V (240V Models)

0.0 to 510.0V (480V Models)

Factory Defaults: 10.8V (240V Models)

16.8V (480V Models)

E1-11 Mid Output Frequency B

Setting Range: 0.0 to 200.0 Hz (settings above 120.0 Hz are currently not supported)

Factory Default: 0.0 Hz

E1-12 Mid Output Voltage B

E1-13 Base Voltage

Setting Range: 0.0 to 255.0V (240V Models)

0.0 to 510.0V (480V Models)

Factory Defaults: 0.0V (240V Models)

0.0V (480V Models)

Programming 5 - 30

To set up a custom V/f pattern, program the points shown in the diagram below using parameters E1-04 through E1-13. Be sure that the following condition is true:

E1-09

≤

E1-07

≤

E1-06

≤

E1-11

≤

E1-04

Max Voltage E1-05

Mid Voltage B E1-12

Base Voltage E1-13

Mid Voltage A E1-08

Min Voltage E1-10

Min

Freq

Mid

E1-11

Base

Freq

Mid

Freq B

E1-04

Max

Freq

Frequency

Fig. 22 Custom V/f Pattern Programming Curve

Increasing the voltage in the V/f pattern increases the available motor torque. However, when setting a custom V/f pattern, increase the voltage gradually while monitoring the motor current, to prevent:

• Drive faults as a result of motor over-excitation

• Motor overheating or excessive vibration

E2 Motor Setup

E2-01 Motor Rated Current

Setting Range: Model Dependent (see Appendix B)

Factory Default: Model Dependent

The Motor Rated Current parameter (E2-01) is necessary information for the Drive motor protection function. The motor overload protection parameter L1-01 is enabled by default. In addition, motor rated current is used by the torque compensation function to insure optimum torque production. Set E2-01 to the full load amps (FLA) value stamped on the motor’s nameplate. During Auto-tuning, it is required for the operator to enter the motor rated current in parameter T1-04 on the

Auto-Tuning menu. If the Auto-tuning operation completes successfully, the value entered into T1-04 will be also written into

E2-01.

For applications employing a Drive that is oversized for the motor, E2-01 may be set as low as 10% of the Drive output current rating. The AMP value in E2-01, however, must always be greater than the “No Load Current” value in parameter E2-03 or an

OPE02 error will be displayed.

Programming 5 - 31

E2-03 No Load Current

Setting Range: Model Dependent (see Appendix B)

Factory Default: Model Dependent

Set E2-03 to the motor no-load current at rated voltage and rated frequency. Consult the motor manufacturer for the proper value if the no load current is not stated on the motor nameplate.

F6 Com OPT Setup (applies only to the LonWorks option)

F6-01 Operation Selection After Communication Error

Setting

Description

Ramp to Stop

Coast to Stop (factory default)

Fast-Stop

Alarm Only

If a serial communication option board is attached to the Drive at the 2CN connector, the Drive will automatically monitor the card for any type of communication errors. F6-01 is applicable no matter whether a run command or speed command is coming via the option board, digital operator, or terminal input. The setting of F6-01 determines whether the communication error is seen as a fault or an alarm. If F6-01= “3: Alarm Only”, then the fault output is not energized upon a communication error. All other settings of F6-01 cause the fault output to energize. The setting of F6-01 does not apply to any of the embedded communication protocols used at the RS-485/422 terminals on the removable terminal board. (See parameters H5-0X).

F6-02 Option PCB External Fault Detection Selection

Setting

Description

Always Detected (factory default)

Detected only during operation

F6-03 Option PCB External Fault Stopping Method

Setting

Description

Ramp to Stop

Coast to Stop (factory default)

Fast-Stop

Alarm Only

If an external fault is received from the L

ORKS

® or other communication option card, the settings of F6-02 and F6-03 will determine the Drive operation in reaction to the fault signal. Parameter F6-02 will determine if the external fault is always recognized (F6-02= “0: Always Detected”) or only recognized when the Run command is active (F6-02= “1: Detected only during operation”).

Once the fault is recognized, parameter F6-03 will determine the operation of the Drive. If parameter F6-03 is set to anything other then “3”, the Drive will fault and a stopping sequence is begun. If F6-03= “3: Alarm Only”, then the external fault is treated like an alarm. Operation will continue and an EF0 fault will flash on the digital operator.

Programming 5 - 32

F6-05 Current Scaling via Communication Option PCB

Setting

Description

A Display (factory default)

100%/8192 (Drive Rated Current)

A communication option card can read the Drive’s DPRAM to access the current monitor. The format of the current reading in the DPRAM will be determined by parameter F6-05.

F6-05= “0: A Display” Current is a decimal number corresponding to actual Amperes

F6-05= “1: 100%/8192 (Drive Rated Current)” Current reading is a number where

8192 = 100% of Drive rated output current

H3 Analog Inputs

H3-02 Terminal A1 Gain Setting

Setting Range: 0.0 to 1000.0%

Factory Default: 100.0%

H3-03 Terminal A1 Bias Setting

Setting Range: -100.0% to +100.0%

Factory Default: 0.0%

In order to have the Drive properly interpret an analog input, it may be necessary to apply a gain and/or a bias to the signal.

The analog inputs have a resolution of 10 bits (1024 steps). Using the factory default settings for the analog input’s gain and bias, the 0-10Vdc or 4-20mA signal at the analog input will yield a 0-100% speed command span.

Gain = 100%

Bias = 0%

4mA

10V

20mA

Fig. 23 Output Frequency as Commanded Via Analog Input

If a different span of analog input signal is desirable, it will be necessary to adjust the gain, the bias, or both to allow the analog input level to generate the desired frequency command. Adjustment of the gain setting will change the speed command that is equivalent to the maximum analog input (10Vdc or 20mA). If, for instance, the gain is increased to 200%, then 10Vdc or

20mA will be equivalent to a 200% speed command and 5 VAC or 12mA will be equivalent to a 100% Speed Command.

Since the Drive output is limited by the maximum frequency parameter (E1-04), 0-5Vdc or 4-12mA will now be equivalent to

0-100% speed command span.

Programming 5 - 33

Gain =200%

100%

Bias = 0%

4mA

12mA

10V

20mA

Fig. 24 Output Frequency as Commanded via Analog Input with Increased Gain Setting

Adjustment of the bias setting will likewise adjust the speed command that is equivalent to the minimum analog input level

(0Vdc or 4mA). If, for instance, the bias is set to –25%, then 0Vdc or 4mA will be equivalent to a –25% speed command.

Since the minimum speed command is 0% an analog input of 2.5 to10Vdc or 8 to 20mA will now be equivalent to 0-100% speed command span.

Gain = 100%

4mA

Bias = -25%

2.5V

8mA

10V

20mA

Fig. 25 Output Frequency with Reduced Bias Setting

As a further example, for an inverse-acting speed command, set the bias= 100% and the gain= 0%. The minimum analog input level (0Vdc or 4mA) will produce a 100% speed command and the maximum analog input level (10Vdc or 20mA) will produce a 0% speed command.

4mA

10V

20mA

Analog Input Signal

Analog Input Level

Fig. 26 Output Frequency with Inverted Gain and Bias Settings

Programming 5 - 34

H3-08 Terminal A2 Signal Level

Setting

0 - 10VDC

4 - 20mA (Default)

Description

The H3-08 parameter (Terminal A2 Signal Level) allows the programmer to specify the signal that will be applied to the A2 analog input. The A2 analog input can accept either a 0–10 Vdc or 4-20 mA signal as a reference. The Drive also has a

DIP switch (S1) on the removable terminal board that must be set for the proper reference signal into the A2 analog input. The

S1-2 dipswitch setting determines the internal resistance of the A2 input while parameter H3-08 determines how the Drive interprets the measured signal.

Terminating resistance

DIP Switch S1-1 located on terminal board.

Fig. 27 DIP Switch S1

Name

S1-1

S1-2

Table 4 DIP Switch S1

Function

RS-485 and RS-422 terminating resistance

Input signal for analog input A2

Setting

OFF: No terminating resistance

ON: Terminating resistance of 110 Ω

OFF: 0 to 10 V (internal resistance: 20 k

)

ON: 4 to 20 mA (internal resistance: 250 Ω ) (Default)

Programming 5 - 35

H3-09 Terminal A2 Function Selection

Setting

Description

Frequency Bias

Aux Reference (factory default)

PI Feedback

Frequency Bias 2

Motor Temperature

PI Differential

Not Used

The A2 analog input can be programmed to perform many different functions. The setting of parameter H3-09 determines which of the following functions the A2 analog input will perform.

Function: Frequency Bias

Setting: 0

By setting H3-09= “0: Frequency Bias”, the A2 analog input will serve as a bias signal to the A1 Speed Command. The effect of using A2 for a frequency bias is that the level of the A2 analog input will be summed with the level of the Speed Command analog input (A1). For example, if H3-02= 100%, H3-03= 0%, and the A2 analog input level is 1 Vdc, the Speed Command profile will look like the figure below. If A1= 0 Vdc the Speed Command would be 10% of the programmed maximum frequency because A1 (0 Vdc) + A2 (1 Vdc) = 1 Vdc.

H3-02

A2 Input

10%

Bias

Input

Terminal A1 Voltage

0V 1V

9V 10 V

Fig. 28 Effect of Frequency Bias Function on Speed Command

It should be noted that the bias applied by the A2 analog input functions differently than the level set by the H3-03. If both biases are used simultaneously they will sum together.

The level of the A1 analog input, as a percentage of the maximum input (either 10 Vdc or 20 mA), can be viewed by the U1-

15 monitor. The level of the A2 analog input, as a percentage of the maximum input, can be viewed by the U1-16 monitor.

The bias applied by setting H3-09= “0: Frequency Bias”, can be used in conjunction with the parameter bias H3-03. In that case the H3-03 bias is applied first which changes the slope of the Speed Command vs. Terminal A1 Voltage graph. Then the level of the A2 analog input is summed with the A1 analog input level, which in effect shifts the Speed Command vs. Terminal

A1 Voltage graph upwards or downwards but does not change the slope of the line.

Programming 5 - 36

H3-02

10V

Factory Default

H3-03

A1 Voltage

10V

With H3-03 applied

A1 Voltage

10V

A1 Voltage

With both H3-03 and analog input bias

(H3-09=0) applied

Fig. 29 Frequency Bias Applied to Analog Speed Command

Function: Aux Reference

Setting: 2

In order for the A2 analog input to be used as the master Speed Command, parameter H3-09 must be set for Aux Reference

(H3-09= “2: Aux Reference”). Once A2 is configured as an auxiliary reference, it can be selected as the master Speed

Command by setting H3-13= “1: Main Fref TA2”. If H3-09= 2, terminal A2 analog input will become the speed command when a digital input programmed for Multi-Step Ref 1 (H1-0x= 3) is selected by a contact closure.

Function: PI Feedback

Setting: B

Configuring the A2 analog input as PI Feedback (H3-09= “B: PI Feedback”) is a requirement of setting the Drive up for PI operation. The A2 analog input is the only source for feedback for PI operation though the setpoint can come from a number of different sources (refer to the section covering the PI parameters for more information regarding specifying the setpoint source. PI parameters are listed in section b5).

Parameters H3-10 (Terminal A2 Gain) and H3-11 (Terminal A2 Bias) can be used to configure the A2 analog input to match the signal from the Feedback Transmitter.

The U1-24 monitor (PI Feedback) can be used to check the PI Feedback level with the digital operator.

Function: Frequency Bias 2

Setting: D

By setting H3-09= “D: Frequency Bias 2”, the A2 analog input will serve as a bias signal to the A1 Speed Command. This setting functions the same as a setting of H3-09=0: Frequency Bias.

H3-02

10V

Factory Default

A1 Voltage

H3-03

10V

With H3-03 applied

A1 Voltage

H3-03

10V

A1 Voltage

With both H3-03 and analog input bias

Fig. 30 Frequency Bias 2 Applied to Analog Speed Command

Programming 5 - 37

Function: PI Differential

Setting: 16

Normal PI operation will adjust the Drive output in order to match the measured feedback value to a desired setpoint. When PI is operated in the differential mode, however, the Drive output is adjusted in order to maintain a desired differential between two feedback signals.

When the A2 analog input is configured as a PI Differential (H3-09= “16: PI Differential”), the A1 analog input becomes the other PI Differential input. The desired differential is set by parameter b5-07 (PI Differential Setpoint) and can be set so that

A2 is held less than A1 (b5-07 <0) or A2 is held greater than A1 (b5-07>0).

When PI Differential operation is chosen, the A1 feedback level can be monitored by U1-24 (PI Feedback) and the A2 feedback level can be monitored by U1-53 (PI Feedback2).

Function: Not Used

Setting: 1F

When H3-09= “1F: Not Used”, any signal applied to the A2 analog input will be ignored by the Drive.

H3-10 Terminal A2 Gain Setting

Setting Range: 0.0 to 1000.0%

Factory Default: 100.0%

H3-11 Terminal A2 Bias Setting

Setting Range: -100.0% to +100.0%

Factory Default: 0.0%

Parameters H3-10 and H3-11 perform the same function for the A2 analog input that parameters H3-02 and H3-03 perform for the A1 analog input. Please refer to the parameter description for H3-02 and H3-03 for information about H3-10 and H3-11.

These parameters could be used for final calibration of a factory or field installed pressure to electric transducer input connected to terminal A2 and AC. This field calibration may be needed if there is a job site variation from the typical 3 to 15

PSIG pneumatic signal input range.

H3-12 Analog Input Filter Time Constant

Setting Range: 0.0 to 2.00 Seconds

Factory Default: 0.30 Seconds

An analog input filter can be used to prevent erratic Drive control when a “noisy” analog reference is used. Parameter H3-12 sets the time constant for a first order filter that will be applied to both the A1 and A2 analog inputs. The Drive operation becomes more stable the longer the time programmed, but it becomes less responsive to rapidly changing analog signals.

Analog

Input

Filter

Noisy input signal input post

Fig. 31 Analog Input Filter Time Constant Effect on “Noisy” Signal

Programming 5 - 38

H3-13 Master Frequency Reference Terminal Selection

Setting

Description

Main Fref= A1(factory default)

Main Fref= A2

Parameter H3-13 allows the programmer to select which analog input will serve as the Speed Command input when

“Terminals” are selected as the Auto Mode Speed source (b1-01= “1: Terminals”), or Terminal is selected as the reference source for the Hand mode (b1-12= “1: Terminals”). For the A2 analog input to be an effective selection for the

H3-13 parameter, parameter H3-09 must be configured as Aux Reference (H3-09= “2: Aux Reference”).

If H3-09

≠

2, then the A1 analog input will be used regardless of the setting of parameter b1-12.

L2 Momentary Power Loss Ride-thru Function

When momentary power loss recovery is enabled (L2-01

≠0), a speed search is executed to catch the potentially spinning motor shaft. This speed search will occur regardless of the setting of b3-01 “Speed Search Selection”.

L2-01 Momentary Power Loss Detection Selection

Setting

Description

Disabled

PwrL Ride Thru t

CPU Power Active (factory default)

L2-02 Momentary Power Loss Ride-Thru Time

Setting Range: 0.0 to 25.5 Seconds

Factory Default: Model Dependent

The Drive allows different responses to momentary power losses. The setting of L2-01 determines whether the Drive attempts to restart after a short loss of incoming AC power and for what length of time this capability remains active.

If L2-01= “0: Disabled”, the Drive detects a UV1 fault 15ms after power loss and automatic restarting is disabled. The Drive cannot restart until the external run command is removed and the UV1 fault is reset.

If L2-01= “1: PwrL Ride Thru t”, the Drive restarts without the UV1 fault if power is returned within the time specified in

L2-02, the Momentary Power Loss Ride-thru Time. During the power loss but before the fault trip, the digital operator will display a UV alarm. If L2-02 is set for a time longer than the control power supply can be sustained, a UV1 fault will not occur and the Drive restarts upon the return of AC power. The time that the control power supply can be maintained varies with

Drive size. The larger the Drive, the greater the potential ride-thru time.

If L2-01= “2: CPU Power Active”, the Drive ignores L2-02 and attempts a restart as long as the control power supply is still able to maintain a minimal voltage level. In effect, setting L2-01= “2: CPU Power Active” (factory default) is programming the Drive for maximum Power Loss Ride-thru. An equivalent setting is L2-01= “1: PwrL Ride Thru t”, with L2-02 set to a time longer than the control power supply can be maintained after power is lost.

Note: The run command must be held during power loss for any power loss ride-thru capability to be possible. It is for this reason that 3-wire control is not recommended for use with the Momentary Power Loss function.

Programming 5 - 39

L3 Stall Prevention

L3-01 Stall Prevention Selection During Accel

Setting

Description

Disabled

General Purpose (factory default)

Intelligent

L3-02 Stall Prevention Level During Accel

Setting Range: 0 to 200% of Drive rated output current

Factory Default: 120% of Drive rated output current

The stall prevention during acceleration function adjusts the acceleration time in order to prevent OC fault trips during acceleration. If L3-01= “0: Disabled”, stall prevention is disabled. If the load is large enough and the acceleration time short enough the Drive may fault and stop.

If L3-01= “1: General Purpose”, then the standard stall prevention function is enabled. When the output current exceeds the level set by the L3-02 parameter, the Drive will discontinue accelerating and maintain speed. If, during acceleration, the output current comes within 15% of the level set by parameter L3-02, the acceleration time is lengthened. Once the output current level has dropped below the L3-02 level, acceleration will begin again with the acceleration rate reaching the programmed rate once again 15% below the L3-02 level.

-15%

Stall level during acceleration

Output Current

Time

Output frequency

Output frequency is controlled to prevent the motor stalling.

Time

Fig. 32 Detailed Time Chart for Stall Prevention During Acceleration

If L3-01= “2: Intelligent”, the intelligent stall prevention is enabled. The active acceleration time is ignored and the Drive will attempt to accelerate as quickly as possible without exceeding the L3-02 output current level.

IMPORTANT

Stall Prevention during Acceleration is not effective when the output frequency is less than 6Hz.

Programming 5 - 40

The following figure demonstrates acceleration when L3-01= “1: General Purpose”.

Output

Frequency a - Set accel time b - Accel time is extended

t

L3-02

Output

Current

Fig. 33 Time Chart for Stall Prevention During Acceleration

The L3-02 parameter is set as a percentage of the Drive rated output current. If the motor capacity is small compared to the

Drive’s capacity, or if the motor stalls during acceleration, lower the set value of L3-02.

L3-04 Stall Prevention Selection During Decel

Setting

Description

Disabled

General Purpose (factory default)

Intelligent

Stall prev w/R

The stall prevention during deceleration function adjusts the deceleration time in order to prevent OV fault trips during deceleration. If L3-04= “0: Disabled”, stall prevention is disabled and if the load is large and the deceleration time short enough the Drive may fault and stop.

If L3-04= “1: General Purpose”, then the standard stall prevention function is enabled. If, during deceleration, the DC Bus voltage exceeds the stall prevention level (see table below), the Drive will discontinue decelerating and maintain speed. Once the DC Bus voltage has dropped below the stall prevention level, the deceleration will continue down to the Speed Command level. See figure below.

480Vac

Table 5 Stall Prevention During Decel

Drive Voltage

240Vac

E1-01

≥

400Vac

E1-01 < 400Vac

Stall Prevention Level during Deceleration

(V)

380

760

660

If L3-01= “2: Intelligent”, the intelligent stall prevention is enabled. The active deceleration time is ignored and the Drive will attempt to decelerate as quickly as possible without causing the DC Bus voltage to exceed the stall prevention level.

Programming 5 - 41

The following figure demonstrates acceleration when L3-04= “1 General Purpose”.

Output

Frequency

DC Bus

Voltage a - Set decel time b - Decel time is extended t a b

380/660/760 Vdc t

TIME

Fig. 34 Time Chart for Stall Prevention During Deceleration

L3-05 Stall Prevention Selection During Running

Setting

Description

Disabled

Decel Time 1 (factory default)

Decel Time 2

L3-06 Stall Prevention Level During Running

Setting Range: 30 to 200% of Drive rated output current

Factory Default: 120% of Drive rated output current

The Stall Prevention During Running function will attempt to avoid a Drive OC fault occurrence while the Drive is operating at a constant speed. If L3-05= “0: Disabled”, the Drive may fault if the load increases sufficiently to cause the output current to reach the OC fault level (180% of Drive rated output current).

If L3-05= “1: Decel Time 1”, the Drive is outputting a constant speed, and the Drive’s output current level exceeds the level set by parameter L3-06 for more than 100 ms the Drive will begin to decelerate at the rate specified by parameter C1-02. The

Drive will continue to decelerate until the output current level drops below the L3-06 level (less a 2% hysteresis). Once the output current drops below the L3-06 – 2% level the Drive will begin to accelerate at the currently active acceleration rate

(either C1-01 or C1-03).

If L3-05= “2: Decel Time 2”, the Drive will function as described above except C1-04 will be used instead of C1-02 as the deceleration rate used when the output current exceeds L3-06 for more than 100 ms.

The following figure demonstrates acceleration when L3-05

≠

Output

Frequency a - Decel time

C1-02 or C1-04.

C1-02 or C1-04 b

– Active accel time b - Active Accel time t a a b b

Output

Current

L3-06 t

TIME

Fig. 35 Time Chart for Stall Prevention Level During Running

The L3-06 parameter is set as a percentage of the Drive rated output current. If the Drive still faults when L3-05

≠

0, then either lower the L3-06 or adjust the C1-02 or C1-04 settings for a quicker deceleration.

Programming 5 - 42

L4 Speed Command Loss Detection

L4-01 Speed Agreement Detection Level

Setting Range: 0.0 to 200.0 Hz

Factory Default: 0.0 Hz

L4-02 Speed Agreement Detection Width

Setting Range: 0.0 to 20.0 Hz

Factory Default: 2.0 Hz

Parameters L4-01 and L4-02 are user specified levels for use with the Fref/Fout Agree 1, Fref/Set Agree 1, and Freq Detect 1

& 2 digital output functions. Please refer to the H2 Digital Output Parameters in the Programming Manual for more information.

L4-05 Frequency Reference Loss Detection Selection

Setting

Description

Disabled

Enabled @ % of PrevRef (factory default)

L4-06 Frequency Reference at Loss of Frequency Reference

Setting Range: 0.0 to 100.0% of previous speed command

Factory Default: 80.0% of previous speed command

The Drive can be configured to compensate for the loss of its external speed command. An external speed command is considered lost if it drops 90% of its value in 400mS or less.

Frequency

Reference

100%

10% t

T = 400mS

L4-06

Output

Frequency

Fig. 36 Loss of Frequency Reference Timing Diagram

TIME t

To enable Frequency loss detection, set L4-05= “1: Enabled @ % of PrevRef”. If Frequency Reference Loss Detection is enabled and the reference is lost, the Drive continues to operate at the speed commanded by parameter L4-06. When the speed command returns, the Drive again follows the speed command.

Setting H2-01/H2-02= “C: Loss of Ref”, configures a digital output as a Frequency Reference Loss indication only when

L4-05= “1: Enabled @ % of PrevRef”.

Programming 5 - 43

L5 Fault Restart

L5-01 Number of Auto Restart Attempts

Setting Range: 0 to 10

Factory Default: 0

L5-02 Auto Restart Operation Selection

Setting

Description

No Flt Relay (factory default)

Flt Relay Active

L5-03 Maximum Restart Time After Fault

Setting Range: 0.5 to 600.0 Seconds

Factory Default: 180.0 Seconds

All major faults will cause the Drive to stop. For some faults it is possible to configure the Drive to attempt a restart automatically. After the fault occurs, the Drive baseblocks for L2-03 seconds. After the baseblock is removed the Drive checks if a fault condition still exists. If no fault condition exists the Drive will attempt to restart the motor. If the restart is successful, the Drive performs a Speed Search (Regardless of the status of b3-01 “Speed Search Selection”) from the set speed command and the Auto Restart Attempts count is increased by one. Even if the restart fails the restart count is increased by one as long as the Drive attempted to rotate the motor. The restart count will not increment if the restart is not attempted due to a continuing fault condition, (i.e. an OV fault). The Drive waits L5-03 seconds before attempting another restart.

Run

Fault

Attempts

OC OC trying each

L5-03 seconds successful try but failed successful t

L2-03 L2-03 L2-03 t t

1 2 3

Count

Voltage remains high for a long time, then reset (1)

Drive trips on OC, resets (2) and tries again but motor still shorted, trips again.

OC condition gone, resets (3) and runs.

Fig. 37 Automatic Restart Timing Diagram

The auto restart count is reset back to 0 if any of the following occur:

• No further faults for ten minutes after the last retry.

• The Drives power is turned off (the Drive must be without power long enough to let control power dissipate).

• The SHIFT/RESET key is pushed after the last reset attempt.

Programming 5 - 44

The setting of parameter L5-02 determines whether the fault output (MA-MB) will be closed during an auto restart attempt.

The setting of L5-02 can be important when interfacing the Drive with other equipment.

The following faults will allow the Auto Restart function to initiate:

• OC (Overcurrent)

• LF (Output Open Phase)

• PF (Input Phase Loss)

• PUF (DC Bus Fuse)

• OL1 (Motor Overload)

• OL3 (Overtorque)

• OL2 (Drive Overload)

• OV (DC Bus Overvoltage)

• GF (Ground Fault)

• UV1 (DC Bus Undervoltage)

• OH1 (Overheat)

In order for auto restart after a UV1 fault, Momentary Power Loss Ride-thru must be enabled (L2-01= “1: PwrL Ride Thru t”, or “2: CPU Power Active”). Setting H2-01 or H2-02 equal to “1E” configures a digital output as “Restart Enabled” to signal if an impending auto restart is possible.

Programming 5 - 45

L6 Torque Detection

L6-01 Torque Detection Selection 1

Setting

Description

Disabled (factory default)

OL@SpdAgree - Alm

OL At Run -Alm

OL@SpdAgree - Flt

OL At Run - Flt

UL@SpdAgree - Alm

UL at Run - Alm

UL@SpdAgree - Flt

UL At Run - Flt

L6-02 Torque Detection Level 1

Setting Range: 0 to 300% of Drive rated output current

Factory Default: 15% of Drive rated output current

L6-03 Torque Detection Time 1

Setting Range: 0.0 to 10.0 Seconds

Factory Default: 10.0 Seconds

The Drive can be programmed to indicate when either an overtorque or an undertorque conditions exist. A digital output must be programmed for “Torque Detection”, (H2-01/H2-02= “B: Trq Det 1 N.O.” or “17: Trq Det 1 N.C.). A warning of an overtorque condition can indicate a jam and an undertorque condition can indicate a broken belt, no water in a pump, or other loss of load.

To configure Torque Detection requires the following decisions:

Do you wish to check for an overtorque condition or an undertorque condition?

Do you wish to check for the torque condition whenever the drive is running or only at speed agree? Nuisance detection during acceleration, when variable torques are normally required, can be avoided.

Do you want the drive to fault if the torque condition is detected or only alarm and continue operation?

The following table can help choose the proper setting for Torque Detection Selection 1 to get the wanted results.

Table 6 L6-01 Setting Choices

L6-01

Setting

Overtorque Undertorque

*Suggested settings for Loss of Load indication

Fault Alarm

Torque Detection Disabled

Always

Detected

Only Detected @

Spd Agree

Programming 5 - 46

After selecting the proper detection scheme the Torque Detection Level (L6-02) must be specified. If the current level read by the output current transformers rises above (overtorque) or drops below (undertorque) this level, and remains there for at least the Torque Detection Time (L6-03), then the Torque Detection Function will change the state of any digital output configured for Torque Detection (H2-01/H2-02= “B: Trq Det 1 N.O.”, or “17: Trq Det 1 N.C.”).

* *

Torque detection level -10%

L6-03 t

L6-03

CLOSED

TIME

Closed

Open

* When the output current drops below the Torque Detection Level by

approximately 10% of the Drive’s rated output current the digital output is reset.

Fig. 38 Over Torque Detection

Torque detection level 10% *

L6-02 t

L6-03 L6-03

Closed

TIME

* When the output current rises above the Torque Detection Level by

approximately 10% of the Drive’s rated output current the digital output is reset.

Fig. 39 Under Torque Detection

Programming 5 - 47

L8 Hardware Protection

L8-02 Overheat Pre-Alarm Level

Setting Range: 50 to 130 o

Factory Default: 95 o

L8-03 Overheat Pre-Alarm Operation Selection

Setting

Description

Ramp to Stop (Decel Time C1-02)

Coast to Stop

Fast-Stop (Decel Time C1-09)

Alarm Only

OH Alarm and Reduce (factory default)

The Drive is capable of warning the operator of an impending heatsink over-temperature fault via an OH pre-alarm.The level at which the pre-alarm will activate is determined by the setting of parameter L8-02. Measurement of the heatsink temperature is done with several strategically mounted thermistors. If any of the heatsink thermistors measure a temperature in excess of the setting of L8-02, the Drive will fault (OH2) and either: ramp to stop using the C1-02 deceleration rate (L8-03= “0: Ramp to Stop”), coast to stop (L8-03= “1: Coast to Stop”), ramp to stop using the C1-09 fast stop deceleration rate (L8-03= “2: Fast-Stop”), alarm (OH) and continue running (L8-03 = “3: Alarm

Only”), alarm (OH) and continue running but at a reduced speed (L8-03= “4: Alarm & Reduce”). If L8-03= 4: Alarm and Reduce, the Drive will continue to run but will reduce the speed to the level determined by parameter L8-19. Refer to the description for parameter L8-19.

If a digital output is configured for OH Prealarm (H2-01= “20: OH PreAlarm”), it will close whenever the heatsink temperature is greater than the L8-02 level no matter what the setting is of L8-03.

L8-06 Input Phase Loss Detection Level

Setting Range: 0.0 to 25.0% of Drives OV Trip point

Factory Default: KVA Dependent

CAUTION:

Changing this parameter from the factory default setting may cause Drive failure and void the product warranty. (Consult the factory for application assistance).

The Drive checks for a lost input phase by monitoring the DC Bus voltage ripple. After an initial delay of approximately 12 seconds, the Drive will sample the DC BUS voltage every 1.28 seconds to determine the minimum and maximum voltage readings. The difference between the minimum and maximum voltage is averaged over ten consecutive scans. If this “averaged” value is greater than the trip level as determined by L8-06 (L8-06 x

400 for 200 volt class Drives; L8-06 x 800 for 400 volt class Drives) the Drive shuts down and displays “PF”, an input phase loss fault.

Phase Loss

DC Bus

Voltage t

Closed

Open

Input Phase Loss

10 seconds

Fig. 40 Input Phase Loss Detection Diagram

Time

Programming 5 - 48 t

L8-06

L8-09 Output Ground Fault Detection Selection

Setting

Description

Disabled

Enabled (factory default)

The Drive has a ground fault detection circuit that activates when the current to ground exceeds 50% of the Drive’s rated output current. The current to ground is determined by comparing the measured current on each of the output phases. If the current to ground is determined to be above 50% of the Drive’s rated output current the digital operator will display a GF and the

Drive will coast to stop.

L8-10 Heatsink Cooling Fan Operation Selection

Setting

Description

Fan On-Run Mode (factory default)

Fan Always On

L8-11 Heatsink Cooling Fan Operation Delay Time

Setting Range: 0 to 300 Seconds

Factory Default: 300 Seconds

Parameters L8-10 and L8-11 allow the Drive programmer to customize the heatsink cooling fan operation. Parameter L8-10 determines whether the cooling fans are always ON whenever the Drive is powered (L8-10= “1: Fan Always On”) or if the cooling fans are only ON when the Drive is in a Run condition (L8-10= “0: Fan On-Run Mode”).

Parameter L8-11 is a delayed OFF for the cooling fan if L8-10= “0: Fan On-Run Mode”. When the cooling fans are set to turn

OFF when the Run command is removed, parameter L8-11 will cause the fans to continue cooling the Drive for the amount of time programmed into L8-11 after the Run command is actually removed. The Drive can be programmed to allow the cooling fan to run for up to 5 minutes (factory default) after the run command is removed.

Both parameters are intended to extend fan life while still providing sufficient cooling for proper Drive operation.

L8-19 Overheat Frequency Reference Reduction Level

Setting Range: 0.0 to 100.0% of maximum frequency

Factory Default: 20.0% of maximum frequency

When the heatsink temperature reaches the OH Pre-alarm level (L8-02) and the Overheat Pre-Alarm Operation Selection parameter is set for Alarm and Reduce (L8-03= “4: OH Alarm & Reduce”), the L8-19 parameter sets the amount of speed decrease that will be applied to the Speed Command in order to lower the heatsink temperature. The decrease in speed will lower the current being switched and conducted by the heat producing output transistors of the Drive.

Parameter L8-19 is set in percentage of maximum frequency (E1-04).

Programming 5 - 49

o1 Monitor Configuration

o1-01 User Monitor Selection

Setting Range: 6 to 53

Factory Default: 6

Setting

Description

Output Voltage (factory default)

DC Bus Voltage

Output Power

Input Terminal Status

Output Terminal Status

Drive Operation Status

Cumulative Operation Time

Software Number

Terminal A1 Input Voltage

Terminal A2 Input Voltage

Motor Secondary Current (I q

)

Output Frequency After Soft Start

PI Feedback Value

CPU Number

First Parameter Causing an OPE

PI Input

PI Output

PI Setpoint

Memobus Communication Error Code

Heatsink Cooling Fan Operation Time

Auto Mode Frequency Reference Value

Hand Mode Frequency Reference Value

PI Feedback 2 Value

Programming 5 - 50

o1-02 Power-On Monitor

Setting

When the Drive is powered up, three monitors are displayed on the digital operator. The first and largest monitor is the

“Power-On” monitor. The factory default “Power-On monitor” is Speed Command (U1-01). Below the Speed Command monitor are the next two sequential monitors, Output Frequency (U1-02) and Output Current (U1-03). Pressing the

INCREASE key once scrolls the monitors to show the User Monitor as selected by o1-01. The factory default for o1-01 is the

Output Voltage monitor (U1-06).

The active monitor displayed when the Drive is powered on can be changed to either be U1-01 (Speed Command), U1-02

(Output Frequency), U1-03 (Output Current), or the User Monitor. Whichever monitor is selected as the Power-On top monitor, the two monitors displayed below it are the next two sequential monitors. See example below.

Description

Frequency Reference (factory default)

Output Frequency

Output Current

User Monitor (set by o1-01)

Active Monitor

-DRIVE- Rdy

Frequency Ref

U101 = 60.00Hz

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U1-02= 60.00Hz

U1-03= 10.05A

Active Monitor Title

Output Frequency

Output Current

Next two sequential monitors

For example, if the Drive needs to display the Elapsed Timer as the Power-On monitor, then o1-01 must be set to “13” and o1-02 must be set to “4”. The next time Drive power is cycled, the digital operator displays U1-13 (Elapsed Time), U1-14

(Flash ID), and U1-15 (Term AI Level).

Active Monitor

-DRIVE- Rdy

Elapsed Time

U1-13= 2 H

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U1-14= 03010

U1-16= 51.2%

Flash ID

Term AI Level

Active Monitor Title

Next two sequential monitors

Programming 5 - 51

o1-03 Digital Operator Display Scaling

Setting

2 - 39

40 - 39999

Description

Hz (factory default)

RPM (Enter the # of Motor Poles)

User Display

Parameter o1-03 allows the programmer to change the units in which the speed monitors and some speed parameters are displayed. The o1-03 parameter will change the units of the following:

• U1-01 (Frequency Reference Monitor)

• U1-02 (Output Frequency Monitor)

• U1-20 (Output Frequency after Soft Start)

• d1-01 through d1-17 (Preset Frequency References and Jog Reference)

The table below details how the setting of o1-03 will affect the way the listed monitors and parameters will be displayed.

If o1-03 is:

Table 7 Display Scaling

The frequency format is

0.01 Hz

0.00%

2 through 39

(enter the # of motor poles)

0 RPM

40 through 39999 Engineering Units

The factory default setting (o1-03= “0”) sets the Drive up to display the affected monitors and parameters in terms of hertz

(Hz).

If the speeds seem more natural in terms of percentage of maximum, set o1-03= “1”. If the speeds are easier to work with when displaying the equivalent synchronous motor RPM, set o1-03= [the number of motor poles]. If another engineered unit, such as fpm or gpm, is desired, set o1-03= xxxx where

X X X X X

Digit 5 Digit 4 Digit 3 Digit 2 Digit 1

Digits 1 through 4 set the desired number to be displayed at 100% speed.

Digit 5 determines the number of decimal places in the displayed number.

If Digit 5 = 0 number format is XXXX

If Digit 5 = 1 number format is XXX.X

If Digit 5 = 2 number format is XX.XX

If Digit 5 = 3 number format is X.XXX

For example:

If o1-03= 10425, then at full speed the digital operator will display “42.5”. Configuring parameter o1-03 for displaying in terms of an engineering unit is only appropriate if the actual display units have a linear relationship with the actual output speed.

Programming 5 - 52

o1-05 LCD Contrast Adjustment

Setting Range: 1, 3 or 5

Factory Default: 3

The contrast setting of the LCD display of the digital operator can be adjusted by the setting of parameter o1-05. The higher the number programmed into o1-05, the darker the background will become. Set o1-05 to the value that makes the LCD the easiest to view at the normal viewing distance and angle.

o1-06 User Monitor Selection Mode

Setting

Description

3 Mon Sequential (factory default)

3 Mon Selectable

o1-07 Second Line User Monitor

Setting Range: 1 to 53

Factory Default: 2

o1-08 Third Line User Monitor

Setting Range: 1 to 53

Factory Default: 3

Normally the monitors shown directly below the active monitor are the next two sequential monitors. If o1-06 (User Monitor

Selection Mode) is set to “1: 3 Mon Selectable”, those two monitors are locked as specified by parameters o1-07 and o1-08 and will not change as the top parameter is scrolled with the INCREASE and DECREASE keys.

Active Monitor

-DRIVE- Rdy

PI Feedback

U1-24= 64.55%

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U1-37= 0.00%

U1-38= 2.50%

PI Output

PI Setpoint

Active Monitor Title

For Example:

The Display above showing PI Feedback, PI Output and PI Setpoint would be useful when setting up a PI Control Loop.

Programming 5 - 53

o2 Key Selections

o2-03 User Parameter Default Value

Setting

No Change

Set Defaults

Clear All

Description

The Drive gives the option of configuring any and all of the programming parameters and then saving the parameters as “User

Initialization Values”. After configuring the Drive, set parameter o2-03= “1: Set Defaults”, to save the parameters to a User

Initialization memory location. Once this has been done, the “Initialize Parameters” parameter (A1-03) will offer the choice of

“1110:User Initialize”. Choosing A1-03= “1110: User Initialized”, will reset all modified parameters back to what they were the last time they were saved using o2-03.

The choice of setting A1-03= “1110: User Initialized”, is unavailable until first setting the User Initialization parameters using o2-03. Once a User Initialization is set (saved), it can be cleared by setting o2-03= “2: Clear All”. After clearing the User

Initialization parameters, the choice of “1110: User Initialize” is no longer a available in A1-03.

o2-05 Frequency Reference Setting Method Selection

Setting

Description

Disabled

Enabled (factory default)

The factory default setting of the Frequency Reference Setting Method parameter (o2-05= “1: Enabled”) dictates that when setting a Speed Command via the digital operator (“Hand” mode), it is not necessary to press the DATA/ENTER key before the Drive will begin to accelerate or decelerate to the new set speed. This is referred to as MOP (Motor Operated Potentiometer) type functionality. When o2-05= “1: Enabled”, the speed command is stored to memory 5 seconds after the

INCREASE or DECREASE keys are released.

When o2-05= “0: Disabled”, the digital operator INCREASE and DECREASE keys will change the speed command but the

Drive will not accelerate or decelerate to the new speed command until the DATA/ENTER key is pressed. In order to change the Speed Command in the HAND mode, U1-01 must be the top monitor and then the ENTER key must be pressed in order to access the Speed Command function. This in not to be confused with pressing the ENTER key in order to achieve a change in speed using the INCREASE and DECREASE keys, which is the subject of parameter o2-05.

Programming 5 - 54

o2-06 Operation Selection when Digital Operator is Disconnected

Setting

Description

Disabled

Enabled (factory default)

Leaving o2-06 enabled will cause the Drive to fault, when the digital operator is removed, even if it’s not outputting to the motor. The reset key on the digital operator will need to be pressed after reconnecting the digital operator to reset the fault and continue normal operation.

If o2-06 = “0: Disabled” then the Drive will not fault if the digital operator is disconnected, but the Drive will discontinue motor operation. If full Drive operation is required while the digital operator is removed set o2-06 = “0: Disabled” and o2-15

= “0: Disabled” (Hand Key Function). If both o2-06 and o2-15 are disabled then the digital operator can be disconnected without disturbing Drive operation.

o2-07 Cumulative Operating Time Setting

Setting Range: 0 to 65535 Hours

Factory Default: 0 Hours

o2-08 Cumulative Operation Time Selection

Setting

Description

Power-On Time

Running Time (factory default)

The Drive features an Elapsed Timer monitor that records in units of hours. The Elapsed Timer monitor is U1-13. Parameter o2-08 programs this function to either accumulate elapsed hours based on time the Drive is powered (o2-08= “0: Power-On

Time”) or time the Drive is running (o2-08= “1: Running Time”). The Drive is considered “running” anytime there is an active run command or when the Drive is outputting voltage (i.e. including during deceleration).

-DRIVE- Rdy

Elapsed Time

U1-13= 0H

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U1-14= 03010

U1-15= 34.1%

Parameter o2-07 allows manual adjustment of the Elapsed Timer, primarily to accommodate maintenance or control board replacement in the event of damage. To reset the Elapsed Timer back to zero, set o2-07= 0.

Programming 5 - 55

o3 Digital Operator Copy Function

o3-01 Copy Function Selection

Setting

Description

COPY SELECT (factory default)

INV → OP READ

OP → INV WRITE

OP ↔ INV VERIFY

Note: The copy function is disabled when serial communication is active.

o3-02 Read Allowed Selection

Setting

Description

Disabled (factory default)

Enabled

The digital operator has parameter COPY capabilities via built in non-volatile memory. The digital operator can READ all of the parameters in the Drive and store them for later WRITE back to the Drive or into a Drive with the same product code and software number. In order to read the parameter values and store them in the digital operator, select o3-02= “1: Enabled”. If you attempt to READ the data, which overwrites any previously stored data, without first setting o3-02= “1: Enabled”, you will get the following error:

ADV-

PRE

READ IMPOSSIBLE

After setting o3-02= “1: Enabled”, it is possible to store parameter values in the digital operator by setting o3-01=1 (INV

→

READ).

A successful READ of the parameter values will display:

-ADV-

READ

READ COMPLETE

An error may occur while saving the parameter values to the digital operator’s memory. If an error is displayed, press any key to cancel the error display and return to parameter o3-01. Error displays and their meanings are covered in Chapter 6: Diag- nostics and Troubleshooting of the E7 Users Manual (TM.E7.01). To COPY parameter values into a Drive, set o3-01= “2: OP-

>INV WRITE”. During the writing of the parameter values into the Drive the digital operator will display:

Programming 5 - 56

-ADV-

COPY

OP → INV COPYING

A successful COPY of the parameter values will display:

-ADV-

COPY

COPY COMPLETE

An error may occur while writing the parameter values to the Drive. If an error is displayed, press any key to cancel the error display and return to parameter o3-01. Error displays and their meanings are covered in Chapter 6: Diagnostics and

Troubleshooting of the E7 Users Manual (TM.E7.01).

It is possible to compare the parameter values stored in the digital operator with the parameter values currently in the Drive by using the VERIFY function. This VERIFY function should not be confused with the “-VERIFY-“that is displayed on the digital operator when viewing the “Modified Constants” menu. To VERIFY the parameter values in the Drive as compared with those stored in the digital operator, set o3-01= “3: OP<-->INV VERIFY”. During the comparing of the parameter values into the Drive the digital operator will display:

-ADV-

VERIFY

DATA VERIFYING

A successful VERIFY of the parameter values will display:

-ADV-

VERIFY

VERIFY COMPLETE

If all the parameter values stored in the digital operator do not match those programmed in the Drive, the digital operator displays the following:

Programming 5 - 57

-ADV-

VYE

VERIFY ERROR

The digital operator will not display which parameters did not match, only that the verification found discrepancies in some parameter values.

NOTE: In order to properly use the COPY or VERIFY functions, the following Drive specifications must be identical between the Drive that the parameters were read from and the Drive that the parameters are to be written to:

• Model Number (e.g. CIMR-E7U2015)

• Software Number (e.g. 03011 also known as FLASH ID)

Yaskawa offers DriveWizard™ software that can also READ, COPY, and VERIFY Drive parameter values. DriveWizard™ lists all discrepancies between the Drive and a pre-saved parameter file when verifying is performed.

To use DriveWizard first select o2-15= “0: Disabled” and select o2-06= “0: Disabled” then remove the digital operator/keypad and attach the DriveWizard cable in its place.

Programming 5 - 58

T1 Auto-Tuning

T1-02 Motor Rated Power

Setting Range: 0.00 to 650.00 kW

Factory Default: Model Dependent

T1-04 Motor Rated Current

Setting Range: Model Dependent

Factory Default: Model Dependent

Auto tuning is recommended to achieve optimum performance. In addition, the Drive requires Line-To-Line Resistance auto-tuning before it can properly perform the Estimated Speed Search method. This method of speed search allows for bi-directional speed search. The T1 parameters are found under the Auto-Tuning menu.

To perform auto-tuning follow these steps:

1. In T1-02, enter the rated power in kilowatts (kW) of the motor attached to the Drive. If the motor nameplate lists the rated power in terms of horsepower (HP), use the following formula to convert to kW before setting the value of T1-02: kW = HP x 0.746

2. In T1-04, enter the Full Load Amps (FLA) as stamped on the motor’s nameplate.

3. Press the INCREASE key once to display this:

-ATUNE-

Rdy

Auto-Tuning

0Hz/ 0.00A

Tuning Ready ?

Press RUN key

4. If ready, press the RUN key once to start auto-tuning. This process will last for approximately 15 seconds. Once auto-tuning is finished, the digital operator will display this:

-ATUNE-

Tune Successful

0Hz/ 0.00A

5. To exit the Auto-Tuning menu, press the MENU key once.

NOTE: It is possible to a get a “Data Invalid” error if the either T1-02 or T1-04 fall outside the range of what the Drive will accept as reasonable levels for the programmed size of drive (o2-04).

Programming 5 - 59

Notes:

Programming 5 - 60

Key features

Variable torque control
Built-in Modbus communication
PI control functionality
Parameter storage and copy
LCD keypad/operator
7 language choices
Optional LONWORKS interface

Frequently asked questions

The Drive is designed mainly for HVAC applications such as fans, blowers, and pumps.

The Drive has embedded communications for Modbus protocol and also supports an optional LONWORKS interface card.

The built-in PI control eliminates the need for closed loop output signals from a building automation system and maintains set point for closed loop control of fans and pumps for pressure, flow, or temperature regulation.

The LCD keypad/operator includes local/remote functions, a copy feature, 7 language choices, and a 5-line display with 16 characters per line.