Control Sequence. Omron Varispeed L7
Tangazo
Tangazo
Control Sequence
5
-4
Up and Down Commands
Travel start in Up or Down direction
UP and Down commands are the travel direction information.
To start in the elevator in Up or Down direction the following conditions have to be fulfilled:
•
At least one speed reference must be selected.
•
•
•
The hardware base block signal must be set (not base block condition).
When a digital input is set as contactor confirmation input, the contactor confirmation signal must be present before the travel starts.
To start to the UP direction the UP direction. To start in Down direction the Down signal must be set.
DI
Inverter ready
DI
Speed
Selection
DI
UP or Down
DI
Contactor
Control
Travel stop
The inverter can be stopped as follows:
•
The direction command (UP or Down) signal is removed.
•
The speed reference selection signal is removed.
Up / Down Command Source Selection
The input source for the Up and Down signal can be selected in parameter b1-02.
Related Parameters
Parameter
No.
b1-02
Name
RUN command source selection
Factory
Setting
Change during
Operation
1 No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Q Q Q
Up/Down Commands Using the Digital Operator (b1-02=0)
When b1-02 is set to 0 the Up/Down command must be input using the Digital Operator keys (RUN, STOP,
and FWD/REV). For details on the Digital Operator refer to
page 3-1, Digital Monitor/ Operator and Modes
This operation can be used for test purposes only.
Up/Down Commands Using Control Circuit Terminals (b1-02=1, factory setting)
When b1-02 is set to 1 the Up/Down command is input at the control circuit terminals S1 and S2. This is the factory setting and the most common configuration.
Up/Down Commands Using Memobus Communications (b1-02=2)
When b1-02 is set to 2 the Up/Down command can be set using Memobus communications.
Up/Down Commands Using an Input Option Card (b1-02=3)
When b1-02 is set to 2 the Up/Down command can be set using an input option card, for example a field bus communications card.
Control Sequence
Speed Reference Source Selection
Speed Reference Source Selection
The speed reference source can be selected using parameter b1-01.
Related Parameters
Parameter
No.
b1-01
Name
Frequency reference source selection
Factory
Setting
Change during
Operation
0 No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Q Q Q
Input the Speed Reference from the Digital Inputs (b1-01=0)
When b1-01 is set to 0 the speed reference can be selected from preset speeds using the digital inputs of the
page 5-6, Speed Selection Sequence Using Digital Inputs
for details.
Input the Speed Reference Using a Voltage Signal (b1-01=1)
When b1-01 is set to 1 and H3-15 (Input function for A1) is set to 0 (Frequency reference) the speed reference can be input by the terminal A1 as a 0 to +10V signal. If an analog option card AI-14B is installed, the A1 signal is replaced by the Channel 1 input of the AI card.
The analog reference signal can be used as well as 1st speed if multispeed operation is selected (Refer to
5-6, Speed Selection Sequence Using Digital Inputs
for details)
Input the Speed Reference Using Memobus Communications (b1-01=2)
When b1-01 is set to 2 the speed reference can be input using Memobus communications.
Input the Speed Reference Using an Input Option Card (b1-01=3)
When b1-01 is set to 2 the speed reference can be input using an input option card, for example a field bus communications card.
5
5-
5
5-
6
Speed Selection Sequence Using Digital Inputs
If the digital inputs are used for speed selection, the speed selection method and the speed priority depends on the setting of parameter d1-18.
Parameter
No.
d1-18
Name
Speed Priority Selection
Factory
Setting
1
Change during
Operation
No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Q Q Q
Multi-Step Speed Operation (Binary Input) (d1-18=0)
Maximum 8 preset speed steps can be selected using 3 binary coded digital inputs. The inverter is started using the Up/Down command. It stops when the Up/Down command is removed.
Related Parameters
Parameter
No.
d1-01 to d1-08
Name
Multi-Step speed 1 to 8 reference value
Factory
Setting
Change during
Operation
0.00 Hz Yes
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
A A A
Multi-function Digital Input Settings (H1-01 to H1-05) (Example)
Terminal
S4
S5
S6
Parameter
Number
H1-02
H1-03
H1-04
Set Value
3
4
5
Multi-step speed command 1
Multi-step speed command 2
Multi-step speed command 3
Details
Speed Selection Table
The following table shows the combinations of the digital input and the according speed.
If b1-02 is set to “1”, speed 1 is input as analog reference at terminal A1 or Channel CH1 of an analog input option card AI-14B if it is installed.
If an AI-14B option card is used and the function for channel 2 and 3 is set for “Auxiliary Frequency 2”
(H3-05/09=2) and “Auxiliary Frequency 3” (H3-05/09=3) the speeds 2 and 3 are set at the CH2 and CH3 input of the option card.l
Speed
7
8
5
6
3
4
1
2
Multi-step Speed
Command 1
Multi-step Speed
Command 2
Multi-step Speed
Command 3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Selected Frequency
Frequency reference 1 d1-01 or A1/AI-14B CH1
Frequency reference 2 d1-02 or AI-14B CH2
Frequency reference 3 d1-03 or AI-14B CH3
Frequency reference 4 d1-04
Frequency reference 5 d1-05
Frequency reference 6 d1-06
Frequency reference 7 d1-07
Frequency reference 8 d1-08
Control Sequence
Separate Speed Selection Inputs, High Speed Has Priority (d1-18=1)
With this setting 6 different speeds can be set and selected using four digital inputs.
Related Parameters
Parameter
No.
Name d1-09 d1-10 d1-11 d1-12 d1-13 d1-17
Nominal Speed
Intermediate Speed 1
Intermediate Speed 2
Intermediate Speed 3
Releveling Speed
Leveling Speed
* This speed can be selected by a combination of two inputs
50.00 Hz
0.00 Hz
0.00 Hz
0.00 Hz
0.00 Hz
4.00 Hz
Factory
Setting
Change during
Operation
Yes
Yes
Yes
Yes
Yes
Yes
A
A
Q
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Q Q Q
Digital Input
Setting (H1-01 to
H1-05)
80
A
A
A
A
A
A
81
-*
A
A
Q
A
A
Q
-*
82
83
Digital Input Factory Settings
Terminal
S3
S4
S5
S6
Parameter
Number
H1-01
H1-02
H1-03
H1-04
Set Value
80
84
81
83
Details
Nominal speed selection (d1-09)
Inspection speed selection (d1-14)
Intermediate speed selection (d1-10)
Leveling speed selection (d1-17)
Higher Speed has Priority and a Leveling Speed Input is Selected (H1-=83)
If d1-18 is set to 1 and one multi-function digital input is set for the leveling speed (H1-=83) after removing the selected speed signal the inverter decelerates to the leveling speed (d1-17). The selected speed must be different from leveling speed and inspection speed. The higher speed has priority over the leveling speed, i.e.
as long as a higher speed is selected the leveling signal is disregarded (see the fig. below)
The inverter stops when the leveling signal or the Up/Down signal is removed.
DC Injection/ zero servo
DC Injection/ zero servo
Speed
Hardware BB
Up/Donw
Leveling speed
Selected speed
No effect
Input is set
The following speed selection table shows the different speeds and the according digital inputs.
Terminal function
Nominal Speed command (H1-=80)
Intermediate speed command (H1-=81)
Releveling speed command (H1-=82)
Leveling speed command (H1-=83)
Nominal
Speed d1-09
1
Intermed.
Speed 1 d1-10
Intermed.
Speed 2 d1-11
Intermed.
Speed 3 d1-12
0 1 0
Relevel.
Speed d1-13
0
0
0
X
1
0
X
1
1
X
1
1
X
0
1
X
Leveling
Speed d1-17
0
0
0
1
* 0 = disabled, 1 = enabled, X = no meaning
0Hz
0
0
0
0
5
5-
7
5-
8
Higher Speed Priority is Selected and a Leveling Speed Input is Not Selected (H1-K83)
When the leveling speed command is not selected for any digital input, the inverter decelerates to the leveling speed (d1-17) when the selected speed signal is removed. The selected speed must be different from leveling and inspection speed.
The inverter stops when the direction signal Up/Down is removed.
When no speed selection input is enabled, leveling speed is the speed reference.
DC Injection/ zero servo
DC Injection/ zero servo
Speed
Hardware BB
Up/Down
Selected speed
The following speed selection table shows the different speeds and the according digital inputs.
Terminal function
Nominal Speed command (H1-=80)
Intermediate speed command (H1-=81)
Releveling speed command (H1-=82)
Leveling speed command (H1-=83)
Nominal
Speed d1-09
1
0
0
N/A
Intermed.
Speed 1 d1-10
0
Intermed.
Speed 2 d1-11
1
1
0
N/A
1
1
N/A
Intermed.
Speed 3 d1-12
0
1
1
N/A
Relevel.
Speed d1-13
0
0
1
N/A
Leveling
Speed d1-17
0
0
0
N/A
* 0 = disabled, 1 = enabled, N/A = not available
To make the inverter stop must be remove the direction signal (UP or DOWN signal).
Separate Speed Selection Inputs, Leveling Speed Has Priority (d1-18=2)
The related parameters and the digital input pre-settings are the same as for the High Speed Priority setting
(d1-18=1).
Leveling Speed has Priority and a Leveling Speed Input is Selected (H1-=83)
If d1-18 is set to “2” and one multi-function digital input is set for the leveling speed (H1-=83) the inverter decelerates to the leveling speed (d1-17) as soon as the leveling speed selection input is activated. The leveling signal has priority over the selected speed, i.e. the selected speed is disregarded. The selected speed must be different from leveling speed and inspection speed.
The inverter stops when the leveling speed command is removed.
Speed
Hardware BB
Up/Down
Leveling speed
Selected speed
DC Injection/ zero servo
DC Injection/ zero servo
Leveling speed has priority
Control Sequence
The following speed selection table shows the different speeds and the according digital inputs.
Terminal function
Nominal Speed command (H1-=80)
Intermediate speed command (H1-=81)
Releveling speed command (H1-=82)
Leveling speed command (H1-=83)
Nominal
Speed d1-09
1
Intermed.
Speed 1 d1-10
Intermed.
Speed 2 d1-11
Intermed.
Speed 3 d1-12
0 1 0
Relevel.
Speed d1-13
0
0
0
X
1
0
X
1
1
X
1
1
X
0
1
X
Leveling
Speed d1-17
0
0
0
1
* 0 = disabled, 1 = enabled, X = no meaning
0Hz
0
0
0
0
Leveling Speed Priority is Selected and a Nominal Speed Input is Not Selected (H1-K80)
If d1-18 is set to “2” and no digital input is set for the nominal speed at no speed selection input the speed reference is nominal speed (d1-09). When the leveling speed signal is set, the inverter starts to decelerate to the leveling speed. The leveling speed signal has priority over all other speed signals, i.e. the intermediate speed 1 and 2 and the releveling signals are disregarded when leveling speed is selected.
The inverter can be stopped by removing the leveling speed signal or the Up/Down command.
CAUTION: When the speed selection wires are broken, the nominal speed will be selected instead of stop.
DC Injection/ zero servo
DC Injection/ zero servo
Speed
Hardware BB
Up/Down
Leveling speed
The following speed selection table shows the different speeds and the according digital inputs.
Terminal function
Nominal Speed command (H1-=80)
Intermediate speed command (H1-=81)
Releveling speed command (H1-=82)
Leveling speed command (H1-=83)
Nominal
Speed d1-09
N/A
0
0
0
Intermed.
Speed 1 d1-10
N/A
1
0
0
Intermed.
Speed 2 d1-11
N/A
Intermed.
Speed 3 d1-12
N/A
1
1
0
Relevel.
Speed d1-13
N/A
0
1
0
Leveling
Speed d1-17
N/A
X
X
1
* 0 = disabled, 1 = enabled, N/A = not available, X = no meaning
The intermediate speed 2 can not be selected using this configuration.
5
5-
9
5-
10
Emergency Stop
If a digital input terminal (H1-) is set to 15 or 17 (emergency stop), this input can be used to fast stop the inverter in the case of emergency. In this case the emergency stop deceleration time set in C1-09 is used. If inputting the emergency stop with an NO contact, set the multi-function input terminal (H1-) to 15, and if inputting the emergency stop with an NC contact, set the multi-function input terminal (H1-) to 17.
After the emergency stop command has been input, operation cannot be restarted until the Inverter has stopped. To cancel the emergency stop, turn OFF the run command and emergency stop command.
Related parameters
Parameter
No.
C1-09 Emergency stop time
Name
Factory
Setting
Change during
Operation
1.50 s No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
A A A
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
15
17
Emergency Stop, NO contact
Emergency Stop, NC contact
Function
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Yes Yes Yes
Yes Yes Yes
Inspection RUN
A digital input can be used to activate the inspection run. Therefore a inspection speed must be set and one digital input must be set for “Inspection Run Selection” (H1-=84).
Related parameters
Parameter
No.
d1-14 Inspection Speed
Name
Factory
Setting
Change during
Operation
25.00 Hz No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
A A A
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
84 Inspection Run Selection
Function
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Yes Yes Yes
Control Sequence
The inspection run command must be set before setting the Up/Down signal. During start of the inspection
RUN the normal brake sequence is used and the inverter accelerates to the inspection speed (d1-14).
To stop the inverter, the Inspection Run command or the Up/Down command must be removed. In this case:
•
The inverter output is cut by baseblock immediately
•
•
The brake open signal is removed immediately
The contactor control output is removed immediately
The falling edge of the inspection RUN command or UP/DOWN commands triggers the contactor open command, the motor brake close command and the base block.
Inspection RUN
(Stop with Up/Down signal remove)
Inspection RUN
(Stop with Inspection Run signal remove)
DC Injection/ zero servo
DC Injection/ zero servo
Speed
Hardware BB
Up/Down (D/I)
Inspection RUN
Base block
MC closed (D/O)
Brake opened (D/O)
Speed
Hardware BB
Up/Down (D/I)
Inspection RUN
Base block
MC closed (D/O)
Brake opened (D/O) 5
Brake Sequence
The L7 supports two types of brake sequences, one with torque compensation at start using an analog input value and one without torque compensation at start.
Related Parameters
Parameter
No.
S1-17
S1-18
S1-19
S1-20
S1-21
S1-22
S1-23
S1-24
S1-25
H3-15
S1-02
S1-03
S1-04
S1-05
S1-06
S1-07
S1-16
Name
Terminal A1 function selection
DC injection braking current at start
DC injection braking current at sop
DC injection braking time at start
DC injection braking time at stop
Brake open delay time
Brake close delay time
Run delay time
DC injection current gain at regeneration
DC injection current gain at motoring
Output contactor open delay time
Zero-servo gain
Zero-servo completion width
Starting torque compensation increase time
Torque compensation gain in Down direction
Torque compensation bias in Up direction
Torque compensation bias in Down direction
Factory setting
100%
20%
0.10 sec
5
10
500 ms
1.0
0.0%
0.0%
0
50%
50%
0.30 sec
0.60 sec
0.20 sec
0.10 sec
0.10 sec
Change during operation
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
A
No
No
A
No
No
A
A
A
A
V/f
Control Method
Open
Loop
Vector
Closed
Loop
Vector
No No A
A
A
A
A
No
No
A
A
A
A
A
A
A
A
A
A
A
A
No
No
No
No
No
No
A
A
A
A
A
No
No
A
A
A
5-
11
5-
12
Multi-function Digital Inputs (H1-01 to H1-05)
Set Value Function
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
80 to 83 Speed selection inputs (refer to
page 5-6, Speed Selection Sequence Using Digital Inputs
Yes Yes Yes
86 Contactor closed answer back signal Yes Yes Yes
Multi-function Digital Outputs (H2-01 to H2-03)
Set Value
40
41
Brake release command
Output contactor close command
Function
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Yes Yes Yes
Yes Yes Yes
Brake Sequence without torque compensation at start
To use the brake sequence without torque compensation at start,
•
•
the Terminal A1 function must be set to 0 (H3-15 = 0, speed reference input) the AI-14B Ch2 and Ch3 input functions must be set other than 14.(H3-05/09
≠ 14, torque reference not selected)
The figure below shows the timing chart for this brake sequence.
S1-16
DCInjection zero servo
S1-04
DCInjection zero servo
S1-05
Selected Speed
S1-06
Leveling
Speed
S1-07
Speed
S1-19
Up/Donw D/I
Inverter Hardware BB (D/I)
Contactor confirmation D/I
Leveling sped selection D/I
Selected speed (D/I)
Contactor Control D/O
Internal Run
Brake Control (D/O) stop t0 t1 t2 t3 t4 t5 t6 t7 t8
Fig 5.32 Timing chart of Brake sequence without torque compensation at start t9 t10
Control Sequence
The timing chart above is divided in time zones. The following table explains the sequence in each time zone.
Timing t0-t1 t1-t2 t2-t3 t3-t4 t4-t5 t5-t6 t6-t7 t7-t8 t8-t9 t9-t10
Description
The inverter gets the direction signal (UP/DOWN)
The inverter gets the hardware base block disable signal (Not BB condition).
The inverter receives the speed reference signal.
The inverter sets the contactor closed signal.
The inverter waits for the contactor confirmation signal. If no digital input is set for “Contactor conformation signal”, the sequence is proceeded after exceeding the operation start delay time (S1-16).
Inverter will activate the output after passing the “RUN Delay Time” (S1-16).
DC Injection/zero servo or zero speed operation is started.
After passing the “Brake Open delay time” (S1-06), the inverter starts opening the brake.
The inverter keeps DC injection/zero servo or zero speed operation until
* the time S1-04 – S1-06 has exceeded if S1-06 < S1-04
* the time S1-06 has exceeded if S1-06 > S1-04 (try avoid this setting since the inverter could run against the brake)
The inverter starts to accelerate.
The inverter speed reaches the selected speed.
The speed is selection is changed to the leveling speed, the inverter starts to decelerate.
After reaching the leveling speed the inverter keeps operating at this speed.
The leveling signal is removed, the inverter ramps to stop.
The inverter reaches the zero speed.
The inverter starts DC injection/zero servo for the time set in S1-05.
After passing “Brake Close Delay Time” (S1-07), the inverter activates the brake close command.
The inverter continues DC Injection/zero speed or zero speed operation until S1-06 – S1-07 has time passed. Remove the direction signal.
The inverter shuts down the output voltage and the hardware base block signal must be set.
After the “Output contactor open delay time“(S1-19) has passed, the inverter releases the output contactor control signal.
5
5-
13
5-
14
Brake Sequence with torque compensation at start
This sequence works in Closed Loop Vector control only. To use the brake sequence with torque compensation at start,
•
the A1 function must be selected for “Torque compensation” (H3-15=1) or
•
one of the input channels Ch2 or Ch3 of the optional analog input card AI-14B must be set to “Torque
Compensation” (H3-05,H3-09=14).
The figure below shows the timing chart for this brake sequence.
Zero Speed
Control
S1-04
Zero Speed
Control
S1-05
S1-16 vn vl
S1-19 speed torque comp level at start
300%torque
S1-07
Clear the torque comp
Torque comp increase time
S1-22
Up/Donw D/I
Inverter Hardware BB (D/I)
Contactor confirmation D/I
Leveling speed selection D/I
Selected speed (D/I)
Contactor Control D/O
Internal Run
Brake Control (D/O) stop t0 t1 t2 t3 t4 t5 t6 t7 t8
Fig 5.33 Timing chart of Brake sequence with torque compensation at start t9 t10
The timing chart above is divided in time zones. The following table explains the sequence in each time zone
Timing t0-t1 t1-t2 t2-t3 t3-t4 t4-t5 t5-t6 t6-t7 t7-t8
Description
The inverter gets the direction signal (UP/DOWN)
The inverter gets the hardware base block signal disable signal (Not BB condition).
The inverter receives the speed reference signal.
The inverter sets the contactor closed signal.
The inverter waits for the contactor confirmation signal. If no digital input is set for “Contactor conformation signal”, the sequence is proceeded after exceeding the operation start delay time (S1-16).
The Inverter will activate the output.
The DC Injection/zero servo or zero speed operation is started.
The analog torque compensation value is latched and start producing the torque compensation value from Zero based on the S1-22 (“Starting torque compensation increase time”.
After reaching torque comp level at start, the inverter sets the brake open and holds the torque compensation value until stop.
After passing zero speed operation time set in S1-04, the inverter starts accelerating.
The Dwell at start function can be activated.
The inverter starts to accelerate.
The inverter speed reaches the selected speed.
When the leveling speed is selected, the inverter starts to decelerate.
The inverter keeps operating at the leveling speed.
The leveling signal is removed, the inverter ramps to stop.
The inverter reaches the zero speed.
The inverter keeps zero speed control.
After passing “Brake Close Delay Time(S1-07)”, the inverter sets the brake close.
Control Sequence
Timing t8-t9 t9-t10
Description
The inverter continues zero speed operation until the time S1-06 – S1-07 time be passed.
Remove the direction signal.
The inverter shuts down the output voltage and the hardware base block signal must be set.
After the “Output contactor open delay time” (S1-19), the inverter releases the output contactor control signal.
Torque compensation at start
If a load measuring device is installed in the elevator, in Closed Loop Vector mode an analog input can be used to give a torque compensation value to the inverter.
The adjusted torque compensation value is latched when the direction command is given. At start it is increased from zero to the latched value using the torque increase time set in parameter S1-22. The torque compensation value is kept during the whole ride and is cleared when the direction command is removed.
The torque compensation function can be adjusted using the parameters shown in the block diagram below.
Adjust the parameter so that the torque compensation value is zero when the elevator is balanced.
%
Torque compensation bias during raising
S1-24 terminal A1
H3-15=1
H3-16
+ +
UP direction torque compensation
Torque compensation
H3-17
0 10v
S1-23
+
Torque compensation gain during lowering
S1-25
+
DOWN direction
Torque compensation bias during lowering
5
5-
15
5-
16
Short Floor Operation
Related parameters
Parameter
No.
S3-01 Short floor operation
Name
Factory
Setting
Change during
Operation
0 No
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
A A A
Principle
The short floor operation is activated when the leveling signal is set before the nominal speed was reached.
The inverter calculates the distance for deceleration from nominal speed to 0.4 x the nominal speed, which is equal to the area S in the figure below.
Speed speed
S eed x 0.4
speed t
0
There are two ways:
•
If the leveling speed is set when 40% of the nominal speed was reached already, the inverter keeps the reached speed until the distance equal to area S is reached. After that it decelerates to leveling speed.
•
If the leveling signal is set before 40% of the nominal speed was reached, the inverter accelerates to 40% of the nominal speed and keeps it until the distance is equal to area S is reached. After that it decelerates to leveling speed.
Speed
0% Nominal speed
0
S
t
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