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Document Update
PowerFlex 70 User Manual Additions and Corrections
Reference
PowerFlex 70 User Manual
, Publication 20A-UM001A-EN-P – August
2000.
New General Precautions
!
!
!
ATTENTION:
Risk of injury or equipment damage exists. DPI or
SCANport host products must not be directly connected together via
1202 cables. Unpredictable behavior can result if two or more devices are connected in this manner.
•
•
ATTENTION:
A risk of injury or equipment damage exists in firmware version 1.011 and earlier. When there is a combination of long shielded motor cables, high source impedance, low speed, light motor load and parameter 190 [Direction Mode] is set to “Unipolar” or
“Bipolar,” an unexpected change in motor direction may occur. If these conditions exist, choose one of the following corrective actions:
•
Set parameter 190 to “Reverse Dis”
Set parameters 161 and 162 to “Disabled”
Install a properly sized Dynamic Brake resistor
ATTENTION:
Nuisance tripping may occur in firmware version
1.011 and earlier due to unstable currents. When using a motor that is connected for a voltage that is different from the drive (e.g., using a
230V connected motor with a 460V drive) the following adjustment must be made to “Stability Gain” using DriveExplorer software and a personal computer.
Motor Nameplate Voltage
---------------------------------------------------------------
Drive Rated Voltage
×
128
Any adjustment made to “Stability Gain” must be manually restored if the drive is reset to defaults or is replaced.
If unstable currents are still present after making the adjustment, contact the factory for assistance.
2
!
ATTENTION:
The “adjust freq” portion of the bus regulator function is extremely useful for preventing nuisance overvoltage faults resulting from aggressive decelerations, overhauling loads, and eccentric loads.
It forces the output frequency to be greater than commanded frequency while the drive's bus voltage is increasing towards levels that would otherwise cause a fault; however, it can also cause either of the following two conditions to occur.
1. Fast positive changes in input voltage (more than a 10% increase within 6 minutes) can cause uncommanded positive speed changes; however an “OverSpeed Limit” fault will occur if the speed reaches
[Max Speed] + [Overspeed Limit]. If this condition is unacceptable, action should be taken to 1) limit supply voltages within the specification of the drive and, 2) limit fast positive input voltage changes to less than 10%. Without taking such actions, if this operation is unacceptable, the “adjust freq” portion of the bus regulator function must be disabled (see parameters 161 and 162).
2. Actual deceleration times can be longer than commanded deceleration times; however, a “Decel Inhibit” fault is generated if the drive stops decelerating altogether. If this condition is unacceptable, the
“adjust freq” portion of the bus regulator must be disabled (see parameters 161 and 162). In addition, installing a properly sized dynamic brake resistor will provide equal or better performance in most cases.
Note: These faults are not instantaneous and have shown test results that take between 2 and 12 seconds to occur.
!
Revised Attention Statement
Refer to page 1-9
ATTENTION:
A contactor or other device that routinely disconnects and reapplies the AC line to the drive to start and stop the motor can cause drive hardware damage. The drive is designed to use control input signals that will start and stop the motor. If an input device is used occasionally, an auxiliary contact on that device should also be wired to a digital input programmed as an “Enable” function. The input device must not exceed one operation per minute or drive damage will occur.
(1)
(2)
Bipolar Wiring Diagram
Replaces the diagram on page 1-13.
Input/Output
Analog Voltage
Input - Bipolar
(1)
±10V Input -
100 ohm input impedance
Connection Example
(2)
Standard Bipolar
18
19 or
Joystick Bipolar
18
19
361 to
366
22
-10V Com +10V
Power Source
Refer to the Attention statement on page 1-9 for important bipolar wiring information.
Examples are based on factory default parameter settings. Refer to previous page for parameters that are related to the individual inputs/outputs.
Main Menu:
Start-Up
Start Up Menu
Replaces diagram on page 2-3.
3
Input Voltage
Configure for
Alternate Input
Voltage
Motor Data and
Ramp Times
Motor Tests Speed Limits Speed Control Start/Stop/I/O
Enter Motor NP
Data, Stop Mode,
Accel/Decel
Ramp Times
Optimize Torque and
Verify Direction
Set Min/Max
Speed and
Direction Control
Configure
Source, Value and Scale for
Speed References
Configure
Control Method
(2 Wire/3 Wire), I/O,
Digital Inputs/Outputs and Analog Outputs
Done /
Exit
4
New Important Notes About Parameter Groups
Refer to page 3-15.
No. Parameter Name and Description Values
Important:
Parameters in the Slip Comp Group are used to enable and tune the
Slip Compensation Regulator. In order to allow the Slip Compensation Regulator to control drive operation, parameter 080 [Speed Mode] must be set to 1 “Slip
Comp”.
Refer to page 3-15.
No. Parameter Name and Description Values
Important:
Parameters in the Process PI Group are used to enable and tune the
PI Loop. In order to allow the PI Loop to control drive operation, parameter 080
[Speed Mode] must be set to 2 “Process PI”.
Corrections To Parameters
Refer to page 3-8.
No. Parameter Name and Description
002
[Commanded Freq]
Value of the active frequency command.
Values
Default:
Min/Max:
Display:
Read Only
–/+[Maximum Speed]
0.1 Hz
Refer to page 3-8.
No. Parameter Name and Description
016
017
[Analog In1 Value]
[Analog In2 Value]
Value of the signal at the analog inputs.
Values
Default:
Min/Max:
Display:
Read Only
4.000/20.000 mA
–/+10.000V
0.001 mA or 0.001 Volt
Refer to page 3-9.
No. Parameter Name and Description
045
[Motor NP Power]
Set to the motor nameplate rated power.
32
Values
Default:
Min/Max:
Display:
Based on Drive Type
0.0/100.0
See [Mtr NP Pwr Units]
046
Refer to page 3-10.
No. Parameter Name and Description
047
[Motor OL Hertz]
Values
Default:
Selects the output frequency below which the motor operating current is derated.
The motor thermal overload will generate a fault at lower levels of current.
Min/Max:
Display:
Motor NP Hz/3
0.0/Motor NP Hz
0.1 Hz
Refer to page 3-10.
042
220
5
No. Parameter Name and Description
055
[Maximum Freq]
Values
Default:
Sets the highest frequency the drive will output.
Refer to parameter 083 [Overspeed Limit].
Min/Max:
Display:
110.0 or 130.0 Hz
5.0/400.0 Hz
0.1 Hz
Refer to page 3-10.
No. Parameter Name and Description
056
[Compensation]
Enables/disables correction options.
Values
ave x
15 x
14 x
13 x
12 x
11 x
10 x
9
Nibble 4 Nibble 3
Bit #
Factory Default Bit Values x
8 x
7 x
6 x
5
Nibble 2 x
4 x
3 x
2
1
1
Nibble 1
1
0
1 =Enabled
0 =Disabled x =Reserved
083
6
Refer to page 3-18.
No. Parameter Name and Description
158
[DC Brake Level]
Values
Default:
Defines the maximum DC brake current in percentage of drive rated current.
The DC braking voltage used in this function is created by a PWM algorithm and may not generate the smooth holding force needed for some applications. Refer to the
PowerFlex Reference Manual
.
Min/Max:
Display:
[Rated Amps]
0/[Rated Amps]
×
1.5
(Equation yields approximate maximum value.)
0.1 Amps
!
ATTENTION: If a hazard of injury due to movement of equipment or material exists, an auxiliary mechanical braking device must be used to stop the motor.
!
ATTENTION: This feature should not be used with synchronous or permanent magnet motors. Motors may be demagnetized during braking.
Refer to page 3-19.
No. Parameter Name and Description
163
[DB Resistor Type]
Selects whether the internal or an external DB resistor will be used.
Values
Default:
Options:
0
0
1
2
“Internal Res”
“Internal Res”
“External Res”
“None”
161
162
Refer to page 3-23.
No. Parameter Name and Description
211
[Drive Alarm 1]
Values
Alarm conditions that currently exist in the drive.
Lvl 2 Lvl 1
PwrUp oltage
Bit # x
15 x
14 x
13
Nibble 4 x
12 x
11 x
10
0
9
Decel Inhibt Drv OL
0
8
0
7 x
6
Nibble 3
0
5
Nibble 2
0
4
0
3
Str At UnderV Prechrg Actv
0
2
0
1
Nibble 1
0
0
1 =Condition True
0 =Condition False x =Reserved
Refer to page 3-27.
212
7
No. Parameter Name and Description
238
[Fault Config 1]
Values
Enables/disables annunciation of the listed faults.
ries oltage x
15 x
14 x
13 x
12 x
11 x
10 x
9
Nibble 4 Nibble 3
Bit #
Factory Default Bit Values x
8 x
7
1
6
Decel Inhibt Motor OverLd UnderV
0
5
Nibble 2
0
4
1
3 x
2
1
1
Nibble 1
0
0
1 =Enabled
0 =Disabled x =Reserved
Refer to page 3-28.
No. Parameter Name and Description
259
[Alarm Config 1]
Values
Enables/disables alarm conditions that will initiate an active drive alarm.
Lvl 2 Lvl 1
PwrUp x
15 x
14 x
13
Nibble 4 x
12 x
11 x
10
Nibble 3
Bit #
Factory Default Bit Values
1
9
Decel Inhibt Drv OL
1
8
1
7 x
6
1
5
Nibble 2
1
4
1
3
Str At Power Loss
1 1 1
2 1 0
Nibble 1 oltage
1 =Enabled
0 =Disabled x =Reserved
8
Refer to page 3-34.
No. Parameter Name and Description
342
[Analog Out1 Sel]
Values
Default:
Selects the source of the value that drives the analog output.
Options:
0 “Output Freq”
See Table
8
9
10
11
12
13
6
7
4
5
2
3
0
1
Options:
“Output Freq”
“Commanded Freq”
“Output Amps”
“Torque Amps”
“Flux Amps”
“Output Power”
“Output Volts”
“DC Bus Volts”
“PI Reference”
“PI Feedback”
“PI Error”
“PI Output”
“%Motor OL”
“%Drive OL”
[Analog Out1 Lo] Value
[Analog Out Absolut]
= Disabled
[Analog Out Absolut]
= Enabled
–[Maximum Freq]
–[Maximum Speed]
0 Amps
–200% Rated
0 Amps
0 kW
0 Volts
0 Volts
–100%
–100%
–100%
–100%
0%
0%
0%
0%
0%
0%
0%
0%
0 Hz
0 Hz
0 Amps
0 Amps
0 Amps
0 kW
0 Volts
0 Volts
[Analog Out1 Hi] Value
+[Maximum Freq]
+[Maximum Speed]
200% Rated
200% Rated
200% Rated
200% Rated
120% Rated
200% Rated
100%
100%
100%
100%
100%
100%
135
136
137
138
220
219
001
002
003
004
005
007
006
012
Refer to page 3-34.
No. Parameter Name and Description
343
[Analog Out1 Hi]
344
Sets the analog output value when the source value is at maximum.
[Analog Out1 Lo]
Sets the analog output value when the source value is at minimum.
Values
Default:
Min/Max:
Display:
Default:
Min/Max:
Display:
10.0 Volt
0.0/10.0 Volts
0.1 Volt
0.0 Volt
0.0/10.0 Volts
0.1 Volt
Refer to page 3-35.
No. Parameter Name and Description
363
[Digital In3 Sel]
Selects the function for the digital inputs.
Values
Default: 18 “Auto/ Manual”
342
342
Refer to page 3-36.
No. Parameter Name and Description
381
385
[Dig Out1 Level]
[Dig Out2 Level]
Sets the relay activation level for options
10 – 15 in [Digital Outx Sel]. Units are assumed to match the above selection
(i.e. “At Freq” = Hz, “At Torque” = Amps).
Values
Default:
Min/Max:
Display:
0.0
0.0
0.0/819.2
0.1
Correction To Fault Action
Refer to page 4-4.
380
Fault No.
Analog In Loss 29
Anlg Cal Chksum 108
➁
Description
➀
➂
An analog input is configured to fault on signal loss. A signal loss has occurred.
Action
1. Check parameters.
2. Check for broken/loose connections at inputs.
Configure with [Anlg In 1, 2 Loss] on page 3-33 .
The checksum read from the analog calibration data does not match the checksum calculated.
Replace drive.
(1)
See page 4-1 for a description of fault types.
New Fault
Fault
Decel Inhibit
No.
24
➂
Description
The drive is not following a commanded deceleration because it is attempting to limit bus voltage.
Action
1. Verify input voltage is within drive specified limits.
2. Verify system ground impedance follows proper grounding techniques.
3. Disable bus regulation and/or add dynamic brake resistor and/ or extend deceleration time.
(1)
See page 4-1 for a description of fault types.
9
10
Renumbered Testpoint Codes and Functions
Refer to page 4-10.
5
6
3
4
1
2
Code Selected in
[Testpoint x Sel]
7
8
9
10
11-99
Function Whose Value is
Displayed in [Testpoint x Data]
DPI Error Status
Heatsink Temperature
Active Current Limit
Active PWM Frequency
Lifetime MegaWatt Hours
Lifetime Run Time
Lifetime Powered Up Time
Lifetime Power Cycles
Life MegaWatt Fraction
Life MegaWatt Fraction Units
Reserved for Factory Use
Notes:
11
12
To contact
Drives Technical Support
. . .
Tel: (1) 262 512-8176, Fax: (1) 262 512-2222
Email: [email protected]
Online: www.ab.com/support/abdrives
Reach us now at www.rockwellautomation.com
Wherever you need us, Rockwell Automation brings together leading brands in industrial automation including Allen-Bradley controls,
Reliance Electric power transmission products, Dodge mechanical power transmission components, and Rockwell Software. Rockwell Automation's unique, flexible approach to helping customers achieve a competitive advantage is supported by thousands of authorized partners, distributors and system integrators around the world.
Americas Headquarters, 1201 South Second Street, Milwaukee, WI 53201-2496, USA, Tel: (1) 414 382-2000, Fax: (1) 414 382-4444
European Headquarters SA/NV, Boulevard du Souverain 36, 1170 Brussels, Belgium, Tel: (32) 2 663 0600, Fax: (32) 2 663 0640
Asia Pacific Headquarters, 27/F Citicorp Centre, 18 Whitfield Road, Causeway Bay, Hong Kong, Tel: (852) 2887 4788, Fax: (852) 2508 1846
Publication 20A-DU001B-EN-P – March 2001
Supersedes November 2000
307288-Q01
Copyright 2001 Rockwell International Corporation. All rights reserved. Printed in USA.
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