Mec 3072ES, Service And Parts Manual

Page: 93 / 254

"3072ES / 3772ES / 3772ES HD" Service & Parts Manual October 2008
Page 4-27
WIRING Messages
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
• The r e i s a voltage o n o n e o r mo r e valve o u tp u t s , whe n all o u tp u t s a r e off.
• Check each valve o u tp u t to t r ace whe r e the i n valid su pply i s comi n g f r om.
FAULT: CAPBANK VOLTAGE TOO HIGH - CHECK LINE CONT! ----------------- Flash Code: 3/3
• The voltage o n the B+ s t u d of the co n t r olle r (co nn ected to a n i n te rn al voltage s tabilizatio n capacito r ba n k) i s
too high whe n the li n e co n tacto r i s off. B+ s t u d voltage s ho u ld be app r oximately 32 volt s at idle.
• Check the li n e co n tacto r tip s a r e n ot welded, a n d check the powe r wi r i n g fo r e rr o rs .
FAULT: ENERGIZED LINE CONTACTOR - CHECK P5 WIRING! ----------------- Flash Code: 3/4
• The r e i s a voltage o n the li n e co n tacto r coil o u tp u t, whe n it i s off.
• Check wi r i n g to the li n e co n tacto r coil to t r ace whe r e the i n valid su pply i s comi n g f r om.
FAULT: MOTOR OVERLOAD! ------------------------------------------------------------- Flash Code: 3/5
• The powe r p r otectio n ci r c u it s i n the co n t r olle r have activated to p r otect f r om ext r eme ove r load.
• Check fo r s ho r t-ci r c u it powe r wi r i n g; check fo r a s eized o r s ho r ted moto r .
P600 TEMPERATURE Messages
• Thi s s ectio n li s t s “tempe r at ur e” HELP me ss age s – p r oblem s have bee n detected which a r e likely d u e to
exce ss ive d u tycycli n g o r poo r heat s i n ki n g:
FAULT: BAD INTERNAL TEMPERATURE SENSOR! -------------------------------- Flash Code: 4/1
• The heat s i n k tempe r at ur e i s o u t of r a n ge; if the fa u lt r emai ns , the powe r co n t r olle r may have to be r eplaced.
FUNCTIONS LOCKED - TOO HOT! ------------------------------------------------------ Flash Code: 4/2
• The heat s i n k tempe r at ur e exceed s 75ºc, p r eve n ti n g all f un ctio ns except lowe r i n g. Check fo r exce ss ive moto r
c urr e n t d r aw; check fo r good heat s i n ki n g to vehicle cha ss i s .
SUPPLY Messages
The following are “supply” HELP messages – problems have been detected which are likely due to
supply issues:
FAULT: BAD INTERNAL 5V! --------------------------------------------------------------- Flash Code: 4/2
• The i n te rn al “5V s lave” su pply i s o u t of r a n ge; if the fa u lt r emai ns , the co n t r olle r may have to be r eplaced.
FAULT: BAD INTERNAL SLAVE! --------------------------------------------------------- Flash Code: 4/2
• The i n te rn al “ s lave” i s n ot ope r ati n g co rr ectly; if the fa u lt r emai ns , the co n t r olle r may have to be r eplaced.
FAULT: BAD INTERNAL 12V! ------------------------------------------------------------- Flash Code: 4/3
• The i n te rn al “12V” su pply i s o u t of r a n ge;
• 12V Su pply i s ge n e r ated by the Moto r co n t r ol mod u le a n d su pplied to the GP400. Check fo r wi r i n g e rr o rs
betwee n the two mod u le s . If the fa u lt r emai ns , the Moto r Co n t r olle r may have to be r eplaced.
FAULT: BATTERY VOLTAGE TOO LOW! ------------------------------------------------ Flash Code: 4/4
• The batte r y su pply i s too low – the batte r ie s m us t be r e-cha r ged.
FAULT: BATTERY VOLTAGE TOO HIGH! ----------------------------------------------- Flash Code: 4/4
• The batte r y su pply i s too high – check that the co rr ect batte r y a n d cha r ge r a r e i ns talled.