36
Symptom
Possible
Causes
Suggested
Solutions
Troubleshooting
Line fuse blows
Line fuse does not
blow, but the motor
does not run
1. Line fuses are the wrong
size.
2. Motor cable or armature
is shorted to ground.
3. Nuisance tripping caused
by a combination of
ambient conditions and
high-current spikes.
1. Speed adjust
potentiometer or reference
signal is set to zero speed.
2. Speed adjust
potentiometer or reference
signal connections are
open.
1. Check that line fuses
are the proper size.
2. Check motor cable and
armature for shorts.
3. Add a blower to cool
the drive components;
decrease TORQUE
settings, or resize motor
and drive for actual load
demand, or check for
incorrectly aligned
mechanical components
or “jams”. See page 23
for information on
adjusting the TORQUE
trimpot.
1. Increase reference
signal or speed adjust
potentiometer setting.
2. Check that the
reference signal or speed
adjust potentiometer
connections are not open.
250-0146r3_readers_spreads.qxd 7/10/01 4:40 PM Page 36
Содержание MM30000 Series
Страница 1: ...SCR Adjustable Speed Drives for DC Brush Motors User s Manual MM30000 Series Model MM31640A...
Страница 8: ...2 Figure 1 Dimensions Dimensions...
Страница 24: ...18 Operation Figure 9 Dynamic Brake Connection...
Страница 26: ...20 Calibration Figure 10 Calibration Trimpot Layout MINIMUM SPEED REGULATION IR COMP MAXIMUM SPEED TORQUE LIMIT...
Страница 41: ...35 Figure 20 Diagnostic LED Locations POWER LED CURRENT LIMIT LED...
Страница 46: ...Notes...