Emerson unidrive m200 - SI Option Module Installation (M600-M810)

Identifier VM_MOTOR1_CURRENT_LIMIT
Description Range applied to current limit parameters (motor 1)
Units %
Range of [MIN] 0.0
Range of [MAX] 0.0 to 1000.0
VM_MOTOR1_CURRENT_LIMIT[MIN] = 0.0
VM_MOTOR1_CURRENT_LIMIT[MAX] = (ITlimit / ITrated) x 100 %
Where:
ITlimit = Imax x cos(sin
-1
(IMrated / Imax))
IMrated = Pr 05.007 sin f
ITrated = Pr 05.007 x cos f
cos f= Pr 05.010
Imax is (Overload x Pr 11.061 / 2.2) when the motor rated current set in Pr 05.007 is less than or equal to Pr 11.032
(i.e. Heavy duty), otherwise it is the lower of (Overload x Pr 11.061 / 2.2) or 1.1 x Pr 11.060 (i.e. Normal Duty).
Overload = 1.75 for Open Loop mode and 1.8 for RFCA mode (not available on M100.M101, ID300, or ID302).
Identifier VM_MOTOR2_CURRENT_LIMIT
Description Range applied to current limit parameters (motor 2)
Units %
Range of [MIN] 0.0
Range of [MAX] 0.0 to 1000.0
VM_MOTOR2_CURRENT_LIMIT[MAX] is dependent on the drive rating and motor set-up parameters.
VM_MOTOR2_CURRENT_LIMIT[MIN] = 0.0
Refer to VM_MOTOR1_CURRENT_LIMIT for description.
Note - Parameter 11.045 is not available on M100/M101 and so this is not used on these drives.
Identifier VM_NEGATIVE_REF_CLAMP1
Description Limits applied to the negative frequency clamp (motor 1)
Units Hz
Range of [MIN] -550.00 to 0.00
Range of [MAX] 0.00 to 550.00
This variable maximum/minimum defines the range of the negative frequency clamp associated with motor map 1 (MinimumReferenceClamp
(01.007)). The minimum and maximum are affected by the settings of the NegativeReferenceClampEnable (01.008), BipolarReferenceEnable
(01.010) and MaximumReferenceClamp (01.006) as shown in the table below.
Negative
Reference
Clamp Enable
(01.008)
Bipolar
Reference
Enable
(01.010)
VM_NEGATIVE_REF_CLAMP1[MIN] VM_NEGATIVE_REF_CLAMP1[MAX]
0 0 0.00 Pr 01.006
0 1 0.00 0.00
1 X -VM_POSITIVE_REF_CLAMP[MAX] 0.00
Identifier VM_NEGATIVE_REF_CLAMP2
Description Limits applied to the negative frequency clamp (motor 2)
Units Hz
Range of [MIN] -550.00 to 0.00
Range of [MAX] 0.00 to 550.00
This variable maximum/minimum defines the range of the negative frequency clamp associated with motor map 2 (M2MinimumReferenceClamp
(21.002)). It is defined in the same way as VM_NEGATIVE_REF_CLAMP1 except that the M2MaximumReferenceClamp (21.001) is used instead of
MaximumReferenceClamp (01.006).
Note - Parameter 11.045 is not available on M100/M101 and so this is not used on these drives.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
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