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Unidrive M100 User Guide 75
Issue Number: 1
VM_HIGH_DC_VOLTAGE Range applied to parameters showing high DC voltage
Units V
Range of [MIN] 0
Range of [MAX] 0 to 1500
Definition
VM_HIGH_DC_VOLTAGE[MAX] is the full scale d.c. jumper voltage feedback for the high d.c. jumper voltage
measurement which can measure the voltage if it goes above the normal full scale value. This level is drive voltage
rating dependent. See Table
VM_HIGH_DC_VOLTAGE[MIN] = 0
VM_LOW_UNDER_VOLTS Range applied the low under-voltage threshold
Units V
Range of [MIN] 205
Range of [MAX] 205 to 1150
Definition
VM_MOTOR1_CURRENT_LIMIT Range applied to current limit parameters
Units %
Range of [MIN] 0.0
Range of [MAX] 0.0 to 1000.0
Definition
VM_MOTOR1_CURRENT_LIMIT[MIN] = 0.0
Open-loop
VM_MOTOR1_CURRENT_LIMIT[MAX] = (I
Tlimit
/ I
Trated
) x 100 %
Where:
I
Tlimit
= I
MaxRef
x cos(sin
-1
(I
Mrated
/ I
MaxRef
))
I
Mrated
= Pr 05.007 sin φ
I
Trated
= Pr 05.007 x cos φ
cos φ = Pr 05.010
I
MaxRef
is 0.7 x Pr 11.061 when the motor rated current set in Pr 05.007 is less than or equal to Pr 11.032 (i.e.
Heavy duty).
VM_NEGATIVE_REF_CLAMP1 Limits applied to the negative frequency or speed clamp
Units Hz
Range of [MIN] -550.00 to 0.00
Range of [MAX] 0.00 to 550.00
Definition
VM_NEGATIVE_REF_CLAMP2 is defined in the same way ex cept that Pr 21. 001 is used instead of Pr 01.006.
Negative Reference
Clamp Enable (01.008)
Bipolar Reference
Enable (01.010)
VM_NEGATIVE_REF_
CLAMP1[MIN]
VM_NEGATIVE_REF_
CLAMP1[MAX]
00 0.0 Pr 01.006
01 0.0 0.0
1 X -VM_POSITIVE_REF_CLAMP[MAX] 0.0
VM_POSITIVE_REF_CLAMP Limits applied to the positive frequency or speed reference clamp
Units Hz
Range of [MIN] 0.00
Range of [MAX] 550.00
Definition
VM_POSITIVE_REF_CLAMP[MAX] is fixed at 550.00
VM_POSITIVE_REF_CLAMP[MIN] is fixed at 0.0