Warner Electric TCS-200-1H - Manual (Page 20)

20 Warner Electric • 800-825-9050 P-2003-2 • 819-0420
Troubleshooting
General: The chart below will be helpful when isolating exact problems that may occur in the control system.
When the system has been running for some time, the chart will also prove helpful when checking for worn,
broken or frayed wires; bent or broken control system parts; blown fuses; loose terminal connections and
defective wire connections.
Symptom A: Green LED indicator does not iluminate with power on
Probable Cause Solution
No power is applied to the control Check that AC power is on.
Fuse Blown Check fuse and replace if blown.
Symptom B: Red LED illuminates short circuit
Shorted magnet coil Check magnet coil resistance for approximately 66-68 ohms
cold for MTB’s. Coil resistance for 2-wire brakes, TB’s, ATT’s
and Magnetic Particle units will vary. Check resistance
specifications in Tension Catalog P-771 or appropriate service
manual.
Brake connections improperly wired Check wiring and rewire if necessary.
Transient Noise Check for source of noise and suppress.
Segragate wiring.
Used shielded cable.
Note: After checking control. Reset control by turning the switch to “off” and then to “run”.
Symptom C: Brake is not engaging
Mode switch in brake “off” position Set mode selector to “run” position.
Tension set at zero Increase tension adjust.
Remote mode switch in brake off position Set remote mode switch to “run” position.
Remote sensors incorrectly wired Check wiring and rewire if necessary.
No signal on analog inputs Check wiring and signal from PLC or ultrasonic sensor.
No power to control Refer to Symptom A.
Symptom D: Brake is not releasing
Mode switch in brake “on” or “stop” position Set mode selector switch to “run” position.
Tension adjust set at maximum Reduce level and see if brake rotates.
Remote mode switch in brake “on” or “stop” Set remote mode selector to “run”.
position
Remote sensor incorrectly wired Check wiring and rewire if necessary.
Mechanical binding Check brake for free wheeling when control power is off.
Correct if mechanical problems still exist.
Symptom E: Brake does not have adequate torque capacity
Brake is incorrectly sized Verify brake sizing by repeating the selection procedure in
Tension Catalog P-771.
Brake is incorrectly wired Recheck wiring and magnet connections and rewire if
necessary.
Local or remote tension adjust Recheck set-up procedures for the incorrectly set mode of
operation in which the control is used. Readjust if necessary.