46
Symptom
Possible
Causes
Suggested
Solutions
Troubleshooting
Line fuse does not
blow, but the motor
does not run (cont.)
2. Speed adjust
potentiometer or
voltage input
signal not
connected to drive
input properly;
connections are
open.
3. Inhibit terminals
are jumpered.
4. S2 is shorted to S1
5. Drive is in current
limit.
6. Drive is not
receiving AC line
voltage.
2. Check connections
to input. Verify
that connections
are not open.
3. Remove jumper
from inhibit
terminal.
4. Remove short.
5. Verify that motor
is not jammed.
Increase MOTOR
CURR. LIMIT or
REGEN CURR.
LIMIT setting if
they are set too
low.
6. Apply AC line
voltage to L1 and
L2.
250-0246r2_readers.qxd 6/7/01 10:51 AM Page 46
Summary of Contents for NRG-2Q Series
Page 1: ...User s Manual NRG 2Q Series Two Quadrant Regenerative PWM Drives for DC Brush Motors...
Page 12: ...6 Regenerative Drives Figure 2 Two Quadrant Operation...
Page 19: ...13 Installation Also see Dynamic brake resistor sizing page 23 Figure 3 NRG 2Q Connections...
Page 31: ...25 Operation Figure 7 Dynamic Braking Circuit Connection...
Page 57: ...Notes...
Page 58: ...Notes...