REV. 07/2019
ELECTRICAL SYSTEM
8
141
Error Message
Possible cause
Fault elimination
Error
Error text
202
VDC LINK OVERV.
"This fault is displayed when the
controller detects an overvoltage
condition. Overvoltage threshold
depends on the nominal voltage of
the controller.
Nominal voltage 24V 36/48V
72/80V 96V
Overvoltage threshold 35V 65V
115V 130V
As soon as the fault occurs,
power bridge and MC are opened.
The condition is triggered using
the same HW interrupt used for
undervoltage detection, uC discerns
between the two evaluating the
voltage present across DC-link
capacitors:
- High voltage ) Overvoltage
condition
- Low/normal voltage )
Undervoltage condition"
"If the alarm happens during
the brake release, check the
line contactor
contact and the battery
power-cable connection."
205
EPS RELAY OPEN
The controller receives from
EPS information about the safety
contacts being open.
Verify the EPS functionality
206
INIT VMN HIGH
"Before closing the LC, the software
checks the power-bridge voltage
without driving it. The software
expects the voltage to be in a
“steady state” value. If it is too high,
this alarm occurs. The hexadecimal
value “XX” identifies the
faulty phase:
81: phase U
82: phase V
83: phase W"
"1- Check the motor power
cables.
2- Check the impedance
between U, V and W
terminals and -B terminal of
the controller.
3- Check the motor leakage
to truck frame.
4- If the motor connections
are OK and there are no
external low
impedance paths, the
problem is inside the
controller. Replace it."
207
INIT VMN LOW
"Before closing the LC, the software
checks the power-bridge voltage
without driving it. The software
expects the voltage to be in a
“steady state” value. If it is too low,
this alarm occurs. The hexadecimal
value “XX” identifies the
faulty phase:
01: phase U
02: phase V
03: phase W"
"1- Check the motor power
cables.
2- Check the impedance
between U, V and W
terminals and -B terminal of
the controller.
3- Check the motor leakage
to truck frame.
4- If the motor connections
are OK and there are no
external low impedance
paths, the problem is inside
the controller. Replace it."
Summary of Contents for LIST JX0
Page 1: ...Service Manual JX0 Task Support Vehicle...
Page 2: ...Service Manual Task Support Vehicle JX0...
Page 14: ...1 1 1 INFORMATION SPECIFICATIONS...
Page 15: ...2 NOTE...
Page 23: ...10 2 2 MAINTENANCE...
Page 24: ...11 NOTE...
Page 34: ...21 3 3 STRUCTURE FUNCTIONS...
Page 35: ...22 NOTE...
Page 45: ...32 4 4 CHASSIS SYSTEM...
Page 46: ...33 NOTE...
Page 50: ...37 5 5 DRIVE SYSTEM...
Page 51: ...38 NOTE...
Page 68: ...55 6 6 OPERATING SYSTEM...
Page 69: ...56 NOTE...
Page 83: ...70 7 7 HYDRAULIC SYSTEM...
Page 84: ...71 NOTE...
Page 86: ...73 REV 07 2019 HYDRAULIC SYSTEM 7 7 1 1 Hydraulic Schematic Diagram...
Page 99: ...86 8 8 ELECTRICAL SYSTEM...
Page 100: ...87 NOTE...
Page 130: ...REV 07 2019 ELECTRICAL SYSTEM 8 117 operational...
Page 169: ...REV 07 2019 ELECTRICAL SYSTEM 8 156 8 16 Electrical Schematic Diagrams...
Page 170: ...REV 07 2019 ELECTRICAL SYSTEM 8 157...
Page 172: ...REV 07 2019 ELECTRICAL SYSTEM 8 159...
Page 173: ...160 9 9 TROUBLESHOOTING...
Page 174: ...161 NOTE...
Page 179: ...166 APPENDIX...
Page 180: ...167 NOTE...
Page 181: ...168 A A SERVICE MANUAL MAST...
Page 182: ...169 NOTE...
Page 185: ...172 REV 07 2019 SERVICE MANUAL MAST A...
Page 187: ...174 REV 07 2019 SERVICE MANUAL MAST A...
Page 190: ...177 B B SERVICE MANUAL BATTERY...
Page 191: ...178 NOTE...
Page 204: ...191 C C SCHEDULE...
Page 205: ...192 NOTE...