ABB Baldor BC142-5 Installatie- en bedieningshandleiding - Pagina 19
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Table 2-4 Troubleshooting Guide (without Optional Forward-Brake-Reverse Switch)
Symptom
Motor will not run in Forward
or Reverse direction.
No braking action in brake
mode.
Erratic motor performance.
Optional Accessories
1. Auxiliary Heat Sink (Catalog No. BC143) - Doubles the horsepower rating of the control.
2. Barrier Terminal Board (Catalog No. BC147) - Converts the quick-connect terminals of the control
to a barrier terminal block. Contains PC board mounted line and armature fuse holders (fuses
supplied separately). Plugs onto the quick-connect terminals of the control.
3. Signal Isolator (Catalog No. BC152) - Provides isolation between non-isolated signal sources and
the control. Plugs onto the quick-connect terminals of the control. May also use BC145 Signal
Isolater, separately mounted.
4. Dial Plate and Knob Kit (Catalog No. BC149) - Provides indication of the Main Speed Potentiometer
position (0 - 100 %).
5. DIN Rail Mounting Kit (Catalog No. BC218)
6. RFI Filter (Catalog No. BC24-LF) - Provides RFI and EMI suppression. Rated 24 Amps at 230 Volts
AC, 50/60 Hz. Complies with CE Directive 89/336/EEC (EN55022 and/or EN55011) relating to the
EMC Class A Industrial Standard. Remote mountable.
2-12
Possible Cause
Faulty wiring or loose connections
to the reversing switch.
Forward-Brake-Reverse Switch is
defective.
Faulty connections or loose
connections.
Defective Brake Resistor.
Overload condition.
Incorrect Plug-In Horsepower
Resistor®.
CL and/or IR Trimpots may be set
incorrectly.
Defective speed control module.
Voltage Select Switch set to wrong
position.
Defective motor, worn brushes, etc.
Suggested Corrective Action
Check and correct connections.
Replace Forward-Brake-Reverse Switch
assembly.
Check and correct connections.
Replace Forward-Brake-Reverse Switch
assembly.
Remove overload.
Install the correct Plug-In Horsepower
Resistor®.
Readjust the CL and/or IR Trimpots
Replace speed control.
Recheck line voltage and the correct setting of
the Voltage Select Switch.
Repair or replace motor.
MN704