Emerson unidrive m200 - Variable Minimum; Maximum Pairs; VM AC Voltage; VM AC Voltage Set; VM Accel Rate; VM DC Voltage

Variable Minimum / Maximum Pairs
The descriptions below define the variable minimum/maximum pairs that can be used with parameters when the VM format bit is set. The variable
minimum and maximum themselves can be dependent on other parameters, or the drive rating or other conditions as defined. The variable minimum
and the variable maximum have a limited range and this is defined for each minimum/maximum pair.
Identifier VM_AC_VOLTAGE
Description Range applied to parameters showing a.c. voltage
Units V
Range of [MIN] 0
Range of [MAX] 0 to 930
VM_AC_VOLTAGE[MAX] in drive voltage rating dependent. See the table below.
Voltage level 200V 400V 575V (1) 690V (2)
VM_AC_VOLTAGE[MAX] 325 650 780 930
(1) Unidrive M frame size 5 and above only
(2) Unidrive M frame size 7 and above only
VM_AC_VOLTAGE[MIN] = 0
Identifier VM_AC_VOLTAGE_SET
Description Range applied to a.c. voltage set-up parameters
Units V
Range of [MIN] 0
Range of [MAX] 0 to 765
VM_AC_VOLTAGE_SET[MAX] is drive voltage rating dependent. See the table below.
Voltage level 200V 400V 575V 690V
VM_AC_VOLTAGE_SET[MAX] frame size 1 to 4 240 480 N/A N/A
VM_AC_VOLTAGE_SET[MAX] frame size 5 to 6 265 530 635 N/A
VM_AC_VOLTAGE_SET[MAX] frame size 7 to 9 265 530 635 765
VM_AC_VOLTAGE_SET[MAX] Commander ID 240 480 N/A N/A
VM_AC_VOLTAGE_SET[MIN] = 0
Identifier VM_ACCEL_RATE
Description Maximum applied to the ramp rate parameters
Units s/100Hz, s/MaxFrequency
Range of [MIN] 0.0
Range of [MAX] 0.0 to 32000.0
A maximum needs to be applied to the ramp rate parameters because the units are a time for a change of speed from zero to a defined level or to
maximum speed. If the change of speed is to the maximum speed then changing the maximum speed changes the actual ramp rate for a given ramp
rate parameter value. The variable maximum calculation ensures that longest ramp rate (parameter at its maximum value) is not slower than the rate
with the defined level, i.e. 32000.0 s/100Hz.
The maximum frequency is taken from MaximumReferenceClamp (01.006) if SelectMotor2Parameters (11.045) = 0, or M2MaximumReference
Clamp (21.001) if SelectMotor2Parameters (11.045) = 1.
VM_ACCEL_RATE[MIN] = 0.0
If RampRateUnits (02.039) = 0:
VM_ACCEL_RATE[MAX] = 32000.0
Otherwise:
VM_ACCEL_RATE[MAX] = 32000.0 x Maximum frequency / 100.00
Note - Parameter 11.045 is not available on M100/M101 and so only the Motor 1 parameters are relevant.
Identifier VM_DC_VOLTAGE
Description Range applied to d.c. voltage parameters
Units V
Range of [MIN] 0
Range of [MAX] 0 to 1190
VM_DC_VOLTAGE[MAX] is the full scale d.c. link voltage feedback for the drive. This level is drive voltage rating dependent. See the table below.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
9