Page 4–82
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 4: AC Drive Parameters
Type Hex Addr Dec Addr
P3.36 PID Deviation Level
♦R/W 0324 40805
Range/Units (Format: 16-bit unsigned) Default
1�0~50�0%
10�0
If a Multi-Function Output terminal is set to PID Deviation Alarm (setting = 15), then the output will
be activated when the amount of deviation between the SP (set point) and PV (process variable) in
the PID loop exceeds the threshold set by this parameter for the period of time set by P3.37.
•
This parameter is used in conjunction with P3�37, PID Deviation Time�
Type Hex Addr Dec Addr
P3.37 PID Deviation Time
♦R/W 0325 40806
Range/Units (Format: 16-bit unsigned) Default
0�1~300�0 sec
5�0
If a Multi-Function Output terminal is set to PID Deviation Alarm (setting = 15), then the output will
be activated when the amount of deviation between the SP (set point) and PV (process variable) in
the PID loop exceeds the threshold set by P3.36 for the period of time set by this parameter.
•
This parameter is used in conjunction with P3�36, PID Deviation Level, as seen above�
Type Hex Addr Dec Addr
P3.38 Frequency Output (FO) Scaling Factor
♦R/W 0326 40807
Range/Units (Format: 16-bit unsigned) Default
1~166
1
This parameter determines the scaling factor that is used to scale the frequency at the Digital
Frequency Output terminals (FO-DCM). The number of output pulses per second at terminal FO is
equal to the GS4 drive output frequency multiplied by P3.38.
•
(Pulse per second = actual output frequency x P3�38)�
Example 1: When drive frequency is 60.0Hz and P3.38 = 10; 60.0Hz x 10 = 600.0Hz; Frequency of
FO’s outputted square wave is 600.0Hz
Example 2: When drive output frequency = 400.0Hz and P3.38 = 20; 400.0Hz x 20 = 8kHz; FO’s
output frequency is 8kHz.
FO is an open collector circuit. A 50% duty cycle square wave is generated. To use a 24VDC source,
insert a 4.7kΩ resistor between the FO and 24V supply. Then read or use the output square wave
at the FO terminal for a 24V pulse.
DCM
FO
4.7kΩ
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