Emerson Unidrive M101 - Page 50

Safety
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installation
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Basic
parameters
Running the
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Advanced
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Diagnostics UL Listing
50 Unidrive M100 / M101 Control User Guide
Issue Number: 1
VM_POWER Range applied to parameters that either set or display power
Units kW
Range of [MIN] -9999.99 to 0.00
Range of [MAX] 0.00 to 9999.99
Definition
VM_POWER[MAX] is rating dependent and is chosen to allow for the maximum power that can be output by the drive
with maximum AC output voltage, at maximum controlled current and unity power factor.
VM_POWER[MAX] = √3 x VM_AC_VOLTAGE[MAX] x VM_DRIVE_CURRENT[MAX] / 1000
VM_POWER[MIN] = -VM_POWER[MAX]
VM_RATED_CURRENT Range applied to rated current parameters
Units A
Range of [MIN] 0.00
Range of [MAX] 0.00 to 9999.99
Definition
VM_RATED_CURRENT [MAX] = Maximum Rated Current (11.060) and is dependent on the drive rating.
VM_RATED_CURRENT [MIN] = 0.00
VM_SPEED_FREQ_REF Range applied to the frequency reference parameters
Units Hz
Range of [MIN] -550.00 to 0.00
Range of [MAX] 0.00 to 550.00
Definition
This variable minimum/maximum is applied throughout the frequency and speed reference system so that the
references can vary in the range from the minimum to maximum clamps.
VM_SPEED_FREQ_REF[MIN] = -VM_SPEED_FREQ_REF[MAX].
Negative Reference Clamp Enable (01.008) VM_SPEED_FREQ_REF[MAX]
0 Maximum Reference Clamp (01.006)
1
Maximum Reference Clamp (01.006) or |Minimum Reference
Clamp (01.007)| whichever the larger
VM_SPEED_FREQ_REF_UNIPOLAR Unipolar version of VM_SPEED_FREQ_REF
Units Hz
Range of [MIN] 0.00
Range of [MAX] 0.00 to 550.00
Definition
VM_SPEED_FREQ_REF_UNIPOLAR[MAX] = VM_SPEED_FREQ_REF[MAX]
VM_SPEED_FREQ_REF_UNIPOLAR[MIN] = 0.00
VM_SPEED_FREQ_USER_REFS Range applied to analog reference parameters
Units Hz
Range of [MIN] -550.00 to 550.00
Range of [MAX] 0.00 to 550.00
Definition
This variable maximum is applied to Analog Reference 1 (01.036) and Keypad Reference (01.017).
The maximum applied to these parameters is the same as other frequency reference parameters.
VM_SPEED_FREQ_USER_REFS [MAX] = VM_SPEED_FREQ_REF[MAX]
However the minimum is dependent on Negative Reference Clamp Enable (01.008) and Bipolar Reference Enable
(01.010).
Negative
Reference Clamp
Enable (01.008)
Bipolar Reference
Enable (01.010)
VM_SPEED_FREQ_USER_REFS[MIN]
00Minimum Reference Clamp (01.007)
0 1 -VM_SPEED_FREQ_REF[MAX]
1 0 0.00
1 1 -VM_SPEED_FREQ_REF[MAX]