Rockwell Automation VSM500 Integrated Drive/Motor - Manual (Page 68)

11-6 Installing and Operating the VSM500 Integrated Drive/Motor, Version 3.0
Table 11.6 – Motor Runs, But Not with Expected Performance
Symptom Corrective Action
Motor accelerates too slowly. Check accel / decel switch setting (see section 8.2).
Verify applied voltage.
Verify input wiring.
Reduce load.
Motor accelerates too quickly. Check accel / decel switch setting (see section 8.2).
Motor acceleration / deceleration is not smooth. Check the motor coupling to load.
Motor stops too slowly or too quickly. Check Stop Type slide switch selection (see section
8.3.6).
Check accel / decel switch setting (see section 8.2)
Blower does not operate. Check wiring.
Verify that blower can rotate freely.
Verify that input voltage is correct.
Replace blower.
High amps; %load indicates > 100%
Verify load is not excessive.
Verify input line voltages.
Runs hot Clean unit.
Check input power connections (see section 5.0).
Check input power phases.
Check input fuses.
Check power supply.
Check blower.
Noisy
Check bearings; replace if necessary.
Check unit mounting (alignment, etc.).
Runs in wrong direction. Refer to section 9.3 (Checking the Direction of Motor
Rotation).
Erratic speed Verify ground connection (see section 5.1).
Verify that only one of the speed reference inputs
(0-10 VDC or 0-20 mA) has been wired (see section
7.5.3).
Verify that there is no noise on the analog reference
signal.
Check the speed reference setting and wiring.