144 Functional Description CG Drives & Automation, 01-5326-01r5
Fig. 111 Closed loop PID control
PID I Time [384]
Setting the integration time for the PID controller.
Communication information
Process PID D Time [385]
Setting the differentiation time for the PID controller.
Communication information
PID sleep functionality
This function is controlled via a wait delay and a separate
wake-up margin condition. With this function it is possible
to put the AC drive in “sleep mode” when the process value
is at it’s set point and the motor is running at minimum
speed for the length of the time set in [386]. By going into
sleep mode, the by the application consumed energy is
reduced to a minimum. When the process feedback value
goes below the set margin on the process reference as set in
[387], the AC drive will wake up automatically and normal
PID operation continues, see examples.
PID sleep when less than minimum
speed [386]
If the PID output is equal to or less than minimum speed
for given delay time, the AC drive will go to sleep.
Communication information
384 PID I Time
Default: 1.00 s
Range: 0.01–300 s
Modbus Instance no/DeviceNet no: 43157
Profibus slot/index 169/61
EtherCAT and CANopen index (hex) 4c55
Profinet IO index 19541
Fieldbus format Long, 1=0.01 s
Modbus format EInt
385 PID D Time
Default: 0.00 s
Range: 0.00–30 s
Modbus Instance no/DeviceNet no: 43158
Profibus slot/index 169/62
EtherCAT and CANopen index (hex) 4c56
Profinet IO index 19542
Fieldbus format Long, 1=0.01 s
Modbus format EInt
Process
reference
Process
feedback
Process
PID
AC drive
Process
NOTE: When the drive is in Sleep mode, this is
indicated with “slp” in the lower left corner of the
display.
386 PID<MinSpd
Default: Off
Range: Off, 0.01 –3600 s
Modbus Instance no/DeviceNet no: 43371
Profibus slot/index 170/20
EtherCAT and CANopen index (hex) 4d2b
Profinet IO index 19755
Fieldbus format Long, 1=0.01 s
Modbus format EInt
NOTE: Menu [386] has higher priority than menu
[342].
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