TCM FB-8 Series, Service Manual

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3. TROUBLESHOOTING GUIDE
(1) Drive system (4/5)
Error code on display
Error description
Problem
Resetting
Error code conditions
LED code
Page
219
Drive motor inverter unit upper FET defective (Error Code 418 also occurs because the drive and load handling units are connected with a copper bar
.)
(Error Code 217 is also triggered because the capacitor between the P
and
N terminals cannot be char
ged.)
Th
e
tra
ve
l,
lo
ad
h
an
dl
in
g,
a
nd
P
S
(p
ow
er
steering) systems are inoperative. Contactor OFF
.
Turn the key switch OFF
.
19
54
220
Drive motor inverter unit lower FET defective (Error Code 418 also occurs because the drive and load handling units are connected with a copper bar
.)
(Error Code 217 is also triggered because the capacitor between the P
and
N terminals cannot be char
ged.)
Th
e
tra
ve
l,
lo
ad
h
an
dl
in
g,
a
nd
P
S
(p
ow
er
steering) systems are inoperative. Contactor OFF
.
Turn the key switch OFF
.
21
54
221
Travel overspeed
The truck can be driven normally
.
Automatically resets when the input returns to normal.
94
54
307
Accelerator potentiometer not positioned properly
The truck can be driven normally
.
Automatically resets when the input returns to normal.
When the key switch is turned ON: •
Accelerator 1: 0.8
V
or less
•
Accelerator 2: 0.4
V
or less
-
53
308
Contactor coil broken (Blown fuse)
The travel, load handling, and EPS systems are inoperative.
Turn the key switch OFF
.
12
55
309
Contactor stuck
The travel, load handling, and EPS systems are inoperative.
Turn the key switch OFF
.
The contactor is stuck.
11
55
318
Overvoltage (Battery connectors disconnected during regenerative braking)
The truck won’
t travel, and the load
handling and EPS systems won’
t work.
Automatically resets when the input returns to normal.
48
V
trucks: More than 72
V
72
V
trucks: More than 1
18
V
86
55
503
Wheel angle sensor defective
Steering SSC Loss of control
Automatically resets when the input returns to normal.
52
55
600
LCD panel data reception error (Communication wire broken)
The truck can be driven normally
.
Mode selection is not possible. Operates with default settings.
Automatically resets when the input returns to normal.
65
56