Nidec Unidrive M200 User Manual page 71

Safety Product Mechanical
information information installation
VM_ACCEL_RATE
Units s / 100 Hz, s/1000 Hz, s/Max Frequency
Open-loop: 0.0
Range of [MIN]
RFC-A: 0.0
Open-loop: 0.0 to 32000.0
Range of [MAX]
RFC-A: 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/100 Hz.
The maximum frequency is taken from Maximum Speed (01.006) if Select Motor 2 Parameters (11.045) = 0, or M2
Maximum Speed (21.001) if Select Motor 2 Parameters (11.045) = 1.
Definition
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
VM_DC_VOLTAGE
Units V
Range of [MIN] 0
Range of [MAX] 0 to 1190
VM_DC_VOLTAGE[MAX] is the full scale DC bus voltage feedback (over voltage trip level) for the drive. This level is
drive voltage rating dependent. See Table 11-4
Definition
VM_DC_VOLTAGE[MIN] = 0
VM_DC_VOLTAGE_SET
Units V
Range of [MIN] 0
Range of [MAX] 0 to 1150
VM_DC_VOLTAGE_SET[MAX] is drive voltage rating dependent. See Table 11-4
Definition
VM_DC_VOLTAGE_SET[MIN] = 0
VM_DRIVE_CURRENT
Units A
Range of [MIN] -9999.99 to 0.00
Range of [MAX] 0.00 to 9999.99
VM_DRIVE_CURRENT[MAX] is equivalent to the full scale (over current trip level) for the drive and is given by Full
Scale Current Kc (11.061).
Definition
VM_DRIVE_CURRENT[MIN] = - VM_DRIVE_CURRENT[MAX]
VM_FREQ
Units Hz
Range of [MIN] -1100.00
Range of [MAX] 1100.00
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_FREQ[MIN] = 2 x VM_SPEED_FREQ_REF[MIN]
VM_FREQ[MAX] = 2 x VM_SPEED_FREQ_REF[MAX]
Unidrive M200 / M201 Control User Guide
Issue Number: 2
Electrical Getting Basic
installation started parameters
Maximum applied to the ramp rate parameters
Range applied to DC voltage reference parameters
Range applied to DC voltage reference parameters
Range applied to parameters showing current in A
Range applied to parameters showing frequency
Running the NV Media
Optimization
motor Card
Onboard Advanced
Diagnostics
PLC parameters
UL Listing
71