Emerson Unidrive M702 User Manual page 143

Safety Product Mechanical
information information installation
VM_RATED_CURRENT
Units A
Range of [MIN] -99999.999 to 0.000
Range of [MAX] 0.000 to 99999.999
VM_RATED_CURRENT [MAX] = Maximum Rated Current (11.060) and is dependent on the drive rating. This is the
Normal Duty rating of the drive.
Definition
VM_RATED_CURRENT [MIN] = 0.00
VM_REGEN_REACTIVE
Units %
Range of [MIN] -1000.0 to 0.0
Range of [MAX] 0.0 to 1000.0
VM_REGEN_REACTIVE[MAX] = ?(VM_MOTOR1_CURRENT_LIMIT2 - ILimit2)
where
ILimit gives the highest level of the active current reference that can occur. This value is defined by the current limit
values. If the current limits are all set to their maximum values (i.e. VM_MOTOR1_CURRENT_LIMIT) then there is no
Definition
current capability left for the reactive current. However, if the current limits are reduced the resulting headroom can be
used for the reactive current. ILimit is defined by a combination of all the current limits excluding any reduction of the
current limit due to the motor thermal model.
VM_REGEN_REACTIVE[MIN] = - VM_REGEN_REACTIVE[MAX]
VM_SPEED
Units Open-loop, RFC-A, RFC-S: rpm or mm/s
Range of [MIN] Open-loop, RFC-A, RFC-S: -50000.0 to 0.0
Range of [MAX] Open-loop, RFC-A, RFC-S: 0.0 to 50000.0
This variable minimum/maximum defines the range of speed monitoring parameters. To allow headroom for overshoot
the range is set to twice the range of the speed references.
Definition
VM_SPEED[MAX] = 2 x VM_SPEED_FREQ_REF[MAX]
VM_SPEED[MIN] = 2 x VM_SPEED_FREQ_REF[MIN]
VM_SPEED_FREQ_REF
Open-loop: Hz
Units
RFC-A, RFC-S: rpm or mm/s
Open-loop: -550.0 to 0.0
Range of [MIN]
RFC-A, RFC-S: -50000.0 to 0.0
Open-loop: 0.0 to 3000.0
Range of [MAX]
RFC-A, RFC-S: 0.0 to 50000.0
If Pr 01.008 = 0: VM_SPEED_FREQ_REF[MAX] = Pr 01.006
If Pr 01.008 = 1: VM_SPEED_FREQ_REF[MAX] = Pr 01.006 or |Pr 01.007|, whichever is larger.
If the second motor map is selected (Pr 11.045 = 1) Pr 21.001 is used instead of Pr 01.006 and Pr 21.002 instead of
Definition
Pr 01.007.
VM_SPEED_FREQ_REF[MIN] = -VM_SPEED_FREQ_REF[MAX].
Unidrive M702 User Guide
Issue Number: 3
Electrical Getting Basic
installation started parameters the motor
Range applied to rated current parameters
Range applied to the reactive current reference in Regen mode
Range applied to parameters showing speed
Range applied to the frequency or speed reference parameters
Running NV Media Card
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Onboard Advanced Technical
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143