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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
M1.2 24 Freq Reference 1,2,3 RO
Instantaneous frequency reference value in Hz.
M1.3 2 Motor Speed 1,2,3 RO
Calculated motor speed in rpms based off the motor parameters entered and the V/Hz curve when
running.
M1.4 3 Motor Current 1,2,3 RO
Measured Instantaneous output motor current.
M1.5 4 Motor Torque 1,2,3 RO
Calculated instantaneous Motor-Torque in Percentage of total Motor Torque.
M1.6 5 Motor Power 1,2,3 RO
Calculated instantaneous motor power in Percentage of total Motor Power.
M1.7 6 Motor Voltage 1,2,3 RO
Measured instantaneous output voltage in AC to the motor.
M1.8 7 DC-link Voltage 1,2,3 RO
Measured Instantaneous DC link Voltage
M1.9 8 Unit Temperature 1,2,3 RO
Measured instantaneous device temperature in ºC.
M1.10 9 Motor Temperature 1,2,3 RO
Calculated motor temperature value in Percentage. Value is based off motor name plate data and the
drive status information take when power up and a calculation performed while motor is active.
M1.11 28 Latest Fault Code 1,2,3 RO
Active Fault code value. See fault codes for description of the value shown here.
M1.12 1686 Instant Motor Power 1,2,3 RO
Measured Instantaneous motor power, units in kW.
M1.13 583 RTC Battery Status 1,2,3 RO
Real time clock battery status.
M2.1 10 Analog Input 1 1,2,3 RO
Analog input 1 measured value, units will depend on analog mode setting of voltage or current.
M2.2 11 Analog Input 2 1,2,3 RO
Analog input 2 measured value, units will depend on analog mode setting of voltage or current.
M2.3 25 Analog Output 1 1,2,3 RO
Analog Output 1 measured value supplied from the drive, units will depend on analog mode setting of
voltage or current.
M2.4 575 Analog Output 2 1,2,3 RO
Analog Output 2 measured value supplied from the drive, units will depend on analog mode setting of
voltage or current.
M2.5 12 DI1, DI2, DI3 1,2,3 RO
Digital Input status for digital input 1, 2 and 3. IO Terminals 20, 21, 22.
M2.6 13 DI4, DI5, DI6 1,2,3 RO
Digital Input status for digital input 4, 5 and 6. IO Terminals 23, 7, 8.
M2.7 576 DI7, DI8 1,2,3 RO
Digital Input status for digital input 7 and 8. IO Terminals 9 and 10.
M2.8 14 DO1,Virtual RO1,Virtual RO2 1,2,3 RO
Digital Output status and Firmware Virtual Relay status. The Virtual RO1 and Virtual RO2 status are of
internal relays in the control board not for external use, allows for turning on functions internal to the
drive without the use of hardwire connections.
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