Control Techniques Unidrive M400 Quick Start Manual page 34

Value
0 Coast
1 Ramp
2 Ramp dc I
3 dc I
4 Timed dc I
5 Disable
6 No Ramp
See the Control User Guide for further information.
00.032
RW Num
OL
RFC-A
Open loop:
Set to 1 to enable Dynamic V to F mode.
0: Fixed linear voltage to frequency ratio (constant torque - standard load)
1: Voltage to frequency ratio dependant on load current. This gives a higher motor efficiency.
RFC-A:
If this parameter is set to 1, the flux is reduced so that the magnetizing current is equal to the torque
producing current, to optimize copper losses and reduce iron losses in the motor under low load
conditions.
00.033
RW Txt
OL
Fwd Only (2), Rev Only (3)
RFC-A
If the drive is to be configured in fixed boost mode (Pr 00.041 = Fd or SrE) with catch a spinning
motor software enabled, an autotune (see Pr 00.038 on page 38) must be carried out to measure the
motor's stator resistance beforehand. If a stator resistance is not measured, the drive may trip on
Over Volts or OI ac while trying to catch a spinning motor.
Pr 00.033
0 Disable
1 Enable
2 Fwd Only
3 Rev Only
34
Text
Coast stop
Ramp stop
Ramp stop + 1 second dc injection
Injection braking stop with detection of zero speed
Timed injection braking stop
Disable
No ramp (RFC-A mode only)
Dynamic V To F Select / Flux Optimisation Select
0 to 1
Catch a Spinning Motor
Disable (0), Enable (1),
Text
Description
Disable (0)
Function
Disabled
Detect all frequencies
Detect positive frequencies only
Detect negative frequencies only
Unidrive M400 Control Quick Start Guide
US
0
US
Issue Number: 3