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Appendix A—Description of parameters
VARIABLE SPEED DRIVE SERIES III LIT-12012999—June 2018 www.johnsoncontrols.com
Code Modbus ID Parameter Application RO/RW
P8.2.7 2557 FB PID2 Feedforward 2 2,3 RW
PID Feedforward value from Network. Can be assigned to PID Feedforward Source
P8.3.1.1 1369 PID2 Keypad Set Point 1 2,3 RW
This parameter sets the Keypad PID Reference value set point 1.
P8.3.1.2 1371 PID2 Keypad Set Point 2 2,3 RW
This parameter sets the Keypad PID Reference value set point 2.
P8.2.1 2467 PID2 Wake Up Action 2,3 RW
Use this parameter to define the wakeup function action. This defines if a static absolute value is used
above or below the level setting or a relative value that changes based off the set point value.
0 - Wakeup when below wakeup level (Absolute Level)
1 - Wakeup when above wakeup level (Absolute Level)
2 - Wakeup when below wakeup level % from PID set point (Relative setpoint)
3 - Wakeup when above wakeup level % from PID set point (Relative setpoint)
P8.3.2.1 1374 PID2 Set Point 1 Source 2,3 RW
Use this parameter to define the source of the PID set point value. This can either be an internal preset
value, keypad set point, analog signal or Fieldbus message.
P8.3.2.2 1375 PID2 Set Point 1 Min 2,3 RW
Use this parmaeter to set the minimum value for the set point 1 source.
P8.3.2.3 1376 PID2 Set Point 1 Max 2,3 RW
Use this parameter to set the maximum value for the set point 1 source.
P8.3.2.4 1377 PID2 Set Point 1 Sleep Enable 2,3 RW
Use this parameter to enable PID Set Point Sleep mode function. When enabled this function will disable
the output when the frequency drops below the sleep frequency for the sleep delay time. The output re
engages when feedback rises above the wakeup level. When the function is disabled the drive will run
at the minimum or maximum defined speed.
P8.3.2.5 2398 PID2 Set Point 1 Sleep Unit Sel 2,3 RW
Use this paramter to define the variable used when going into the sleep mode.
0 = Output Frequency
1 = Motor Speed
2 = Motor Current
3 = PID1 Feedback
P8.3.2.6 2454 PID2 Set Point 1 Sleep Level 2,3 RW
Use this parameter to seet the level of which the unit value is used to look at to go into the sleep mode.
When the unit drops below or goes above this level for the sleep delay time it will put the drive into the
sleep mode.
P8.3.2.7 1379 PID2 Set Point 1 Sleep Delay 2,3 RW
Use this parameter sets the minimum time after the variable drops below the Sleep level for this amount
of time that the output will shutoff.
P8.3.2.8 1380 PID2 Set Point 1 WakeUp Level 2,3 RW
Use this parameter to set the level for the drive wakes up form the sleep mode condition. This level is
variable based off the wake up action selection.
P8.3.2.9 1382 PID2 Set Point 1 Boost 2,3 RW
Use this parameter to set the value the set point can be boosted when going into sleep mode.
This is an additive variable that will add to the setpoint before drive output goes to sleep to prevent
premature cycling.
P8.3.2.10 1414 PID2 Set Point1 Comp Enable 2,3 RW
Use this parameter to enables pressure loss compensation for set point 1 signal value. This is used in
pump systems to compensate the pressure loss that occurs at the end of the pipe line due to the liquid
flow.
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