56 Unidrive M400 Quick Start Guide
Issue Number: 8
Motor Rpm = 60 x Frequency / Pole pairs
where
Pole pairs = the numeric value of Number Of Motor Poles (Pr 00.040) (i.e. 3 for a 6 pole motor)
The frequency used to derive the Motor Rpm is the Final Demand Reference (Pr 00.083).
Current Magnitude is the instantaneous drive output current scaled so that it represents the r.m.s.
phase current in Amps under steady state conditions.
Torque Producing Current is the instantaneous level of torque producing current scaled so that it
represents the r.m.s. level of torque producing current under steady state conditions.
Digital I/O Read Word reflects the state of digital inputs/outputs 1 to 5 and the relay.
Reference On, which is controlled by the drive sequencer, indicates that the reference from the
reference system is active.
00.087 Motor Rpm
RO Num ND NC PT FI
OL
±33000.0 rpm
RFC-A
00.088 Current Magnitude
RO Num ND NC PT FI
OL
0 to Drive Maximum Current A
RFC-A
00.089 Torque Producing Current
RO Num ND NC PT FI
OL
± Drive Maximum Current A
RFC-A
00.090 Digital I/O Read Word
RO Bin ND NC PT
OL
000000000000 to 111111111111
RFC-A
00.091 Reference On
RO Bit ND NC PT
OL
Off (0) or On (1)
RFC-A
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