Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

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Wheel System, Traction 418 Service Manual – CS7000
Troubleshooting Chart
The troubleshooting chart, provides the following information on all the controller faults:
• fault code
• fault name as displayed on the programmer’s LCD
• the effect of the fault
• possible causes of the fault
• fault set conditions
• fault clear conditions.
Whenever a fault is encountered and no wiring or vehicle fault can be found, shut off KSI (Key Switch)
and turn it back on to see if the fault clear s. If it does not, shut off KSI and remove the low current 35-pin
connector from the drive controller. Check the connector for corrosion or damage, clean it if necessary, and
re-insert it.
Note: Some of the codes listed in the table are for circuits that are not utilized on the CS7000.
Troubleshooting Chart
Flash
Code
#
Programmer LCD
Display / Effect Of Fault
Possible Cause(s) Set / Clear Conditions
12 Controller Overcurrent
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump
1. External short of phase U,V,
or W motor connections.
2. Motor parameters are mis-
tuned.
3. Controller defective.
Set : Phase current exceeded
the current measurement limit.
Clear : Cycle KSI.
13 Current Sensor Fault
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump.
1. Leakage to vehicle frame from
phase U, V, or W (short in
motor stator).
2. Controller defective.
Set : Controller current sensors
have invalid offset reading.
Clear : Cycle KSI.
14 Precharge Failed
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump.
1. External load on capacitor
bank (B+ connection terminal)
that prevents the capacitor
bank from charging.
2. See Monitor menu » Battery:
Capacitor Voltage.
Set : Precharge failed to charge
the capacitor bank to the KSI
voltage.
Clear : Cycle Interlock input or
use VCL function Precharge.
15 Controller Severe
Undertemp
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump.
1. Temperature information is
not accurate.
2. Controller is operating in an
extreme environment.
Set : Heatsink temperature
below -40°C.
Clear : Bring heatsink
temperature above -40°C, and
cycle interlock or KSI.