Smach EFE 4000, Service Manual

Page: 11 / 31

11
Display
OC
OL1
OL2
OL3
LV-C
OH-C
Vol ta ge too l ow
duri ng opera ti on
1. Powe r vol ta ge too l ow
2. Powe r vol ta ge va ri e s wi del y
1. Improve power qua l i ty or
i ncrea s e the va l ue of 2-01
2. Set a l onger a cce l e ra ti on ti me
3. Incre a s e i nve rte r ca pa ci tor
4. Add a re a ctor a t the powe r
i nput
s i de
He a ts i nk
te mpe ra ture
too Hi gh duri ng
opera ti on
1. Hea vy l oa d
2. Ambi ent tempera ture too
hi gh or ba d venti l a ti on
1. Che ck i f there a re a ny
probl e ms wi th the l oa d
2. Incre a s e i nverter ca pa ci ty
3. Improve ve nti l a ti on
condi ti ons
Inve rte r overl oa d He a vy Loa d Increa s e the i nverter ca pa ci ty
Over torque
1. Hea vy Loa d
2. Ins uffi ci ent s e tti ngs of 9-14,
9-15
1. Increa s e the i nverter ca pa ci ty
2. s e t 9-14, 9-15 prope rl y
Ove r-current duri ng
s top
1. De tecti on ci rcui t
ma l functi ons
2. Ba d conne cti on for CT
s i gna l ca bl e
1.Check the noi s e be twe en Power
l i ne a nd motor l i ne
2.Send the i nverter ba ck for
repa i ri ng
Motor overl oa d
1. Hea vy l oa d
2. I na ppropri a te s e tti ngs of
0-02, 9-08~11
1. Increa s e the motor ca pa ci ty
2. s e t 0-02, 9-08~11 prope rl y
Errors which can be recovered manually
Error Cause Remendy