Motor Poles - Reliance electric GV3000/SE Instruction Manual

U.002

Motor Poles

Parameter Range: 2 =
4 =
6 =
8 =
Default Setting: 4
Type: Configurable (at standby only)
Refer to: U.005 Motor Nameplate RPM
Description: This parameter identifies the number of poles in the motor.
Important: This parameter must be entered before parameter U.005.
ATTENTION: The setting of parameters U.001 (Encoder PPR), U.002 (Motor
Poles), U.003 (Motor Nameplate Base Frequency), U.005 (Motor Nameplate
RPM), and U.017 (Motor Top Speed) determines the motor maximum speed.
WARNING: Do not use a 4096 PPR tachometer with a 2-pole motor. Overspeed
and motor damage can result. Failure to observe this precaution could result in
bodily injury.
Important: Verify that the value in U.017 (Motor Top Speed) is correct if U.002 is
If the number of poles is unknown, this value can be calculated using data on the
motor nameplate as follows:
Step 1. Calculate the RPM value at 50 Hz as follows:
RPM @ 50
Step 2. Determine the number of motor poles by looking up the value computed for RPM @
50Hz or 60Hz:
If you change this parameter after performing self-tuning using parameter U.008,
you must repeat the self-tuning procedure.
49'1329 e
6 - VECTOR REGULATION MODE
2 Poles
4 Poles
6 Poles
8 Poles
Parameter U.005 is limited by the number of motor poles (U.002).
changed.
=
Hz
Motor Nameplate Base Frequency Hz U
Number of Poles Range of RPM at 50Hz
(U.002)
2
4
6
8
50 Hz
( ) ( .
Range of RPM at 60Hz
(U.003)
2700 - 2997
1350 - 1498
0900 - 0999
0675 - 0749
GV3000/SE
* Nameplate RPM U
003 )
(U.003)
3240 - 3596
1620 - 1798
1080 - 1198
0810 - 0899
( . 005 )
6 - 7