TCM FB20-8 - Page 201

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3. TROUBLESHOOTING GUIDE
(1) Drive system (2/5)
Error code
on display
Error description Problem Resetting Error code conditions
LED
code
Page
204
Drive motor inverter unit thermosensor 1 (TMD1) AD input range abnormal
The drive output is limited.
Automatically resets when the input returns to normal.
The thermosensor voltage drops below 0.2 V or rises above 4.92 V
31
48
Drive motor inverter unit thermosensor 2 (TMD2) AD input range abnormal
32
205 Drive motor temp. abnormal The truck won’t travel.
The temp. drops below 155°C [311°F].
The thermosensor temp. reaches 155°C [311°F].
37 49
206 Drive motor temp. too high
The truck can be driven (but the current is limited).
The temp. drops below 135°C [275°F].
The thermosensor temp. reaches 145°C [293°F].
36 49
207
Drive motor thermosensor abnormal AD input range abnormal
The drive output is limited.
Automatically resets when the input returns to normal.
The thermosensor voltage drops below 0.15 V or rises above 4.92 V
35 49
208 Excessive travel inching
The truck won’t travel. (Limits the output to 80% when the accelerator and brake are both turned ON)
Accelerator output OFF
The brake switch remains ON for at least 10 seconds while the accelerator output is 70% or more.
89 49
209
Rotation sensor defective • The A or B phase pulse is missing. • The A and B phase pulses are missing.
The truck won’t travel.
Automatically resets when the input returns to normal.
After the accelerator is turned ON, if there is no speed pulse input and the electric current equivalent to the max. torque (i.e., the torque command is for more than 60% of full current) remains present for at least 15 seconds.
73 50
Rotation sensor defective Bearing defective (Stall signals detected continuously)
The drive output is limited.
Automatically resets when the input returns to normal.
74 50
210 Accelerator signal wire short-circuited
The truck can be driven normally. Accelerator 1 or 2 signal wire short- circuited
Automatically resets when the input returns to normal.
Accelerator voltage comparison: Accelerator 1 – Accelerator 2 x 2 ≧ 0.5
- 51
211 Accelerator 2 potentiometer defective
The truck can be driven normally. The truck cannot be driven if this error is detected together with Error Code 212.
Automatically resets when the input returns to normal.
The output detected is not 1/2 of the accelerator 1 potentiometer output.
06 50
212
Accelerator 1 potentiometer defective
Operated via accelerator 2 potentiometer. The truck cannot be driven if this error is detected together with Error Code 211.
Automatically resets when the input returns to normal.
The output detected is not twice that of the accelerator 2 potentiometer output.
06 50