Mec Speed Level 2684 RT Service And Parts Manual page 129

T
R O U B L E S H O O T I N G
RELEASE TRIGGER! ____________________________________ Flash Code: 2/2
• The trigger was closed at power-on, or closed for too long with no function selected.
RELEASE GROUND SWITCHES!___________________________ Flash Code: 2/2
• Ground function switches were closed at power-on.
RELEASE JOYSTICK SWITCHES! __________________________ Flash Code: 2/2
• Platform joystick switches were closed at power-on, or closed for too long without trigger
switch (see SETUPS/INTERLOCKS/TRIGGERwait).
RELEASE OUTRIGGER SWITCHES! ________________________ Flash Code: 2/2
• Outrigger switches were closed at power-on.
WIRING M
E S S A G E S
The following are "wiring" HELP messages – problems have been detected which are
likely due to vehicle wiring issues:
FAULT: ENERGIZED VALVE - CHECK P5 WIRING! ____________ Flash Code: 3/2
FAULT: VALVE FEEDBACK HIGH - CHECK VALVE WIRING! _____ Flash Code: 3/2
• There is a voltage on one or more valve outputs, when all outputs are off.
• Check each valve output to trace where the invalid supply is coming from.
FAULT: CAPBANK VOLTAGE TOO HIGH - CHECK LINE CONT! __ Flash Code: 3/3
• The voltage on the B+ stud of the controller (connected to an internal voltage stabilization
capacitor bank) is too high when the line contactor is off. B+ stud voltage should be approxi-
mately 32 volts at idle.
• Check the line contactor tips are not welded, and check the power wiring for errors.
FAULT: ENERGIZED LINE CONTACTOR - CHECK P5 WIRING! __ Flash Code: 3/4
• There is a voltage on the line contactor coil output, when it is off.
• Check wiring to the line contactor coil to trace where the invalid supply is coming from.
FAULT: MOTOR OVERLOAD! ______________________________ Flash Code: 3/5
• The power protection circuits in the controller have activated to protect from extreme over-
load.
• Check for short-circuit power wiring; check for a seized or shorted motor.
"3084 Speed Level™ Sigma Lift" Service and Parts Manual
- 3 0 8 4 R T - - E
M O D E L S
- C R M
Z A L E T R I E V E O D E
A H M
N D E L P E S S A G E S
November 2009
Page 4a-25