WerkMaster Cobra - Page 24

OPERATOR’S)MANUAL))
Page!22!)
13!
OverVoltage!
Overvoltage!
condition!
0!
The!drive!detected!an!overvoltage!
condition!during!power-up!(not&auto-
resettable).!
Verify!that!incoming!line!power!is!w ith in !
the!drive’s!specifications.!Add!a!reactor!
or!transformer!to!correct.!
1,3!
The!drive!detected!an!overvoltage!
condition!during!a!running!condition.!!
Verify!incoming!line!power!and!check!for!
regenerative!load.!Reduce!Regen!load !or!
add!dynamic!braking!resistors.!Regen!
Current!Limit!may!help;!consult!the!
factory.!!
2!
The!drive!detected!an!overvoltage!
condition!on!power-up!on!the!load!side.!
Verify!that!incoming!line!power!is!w ith in !
the!drive’s!specifications.!Add!a!reactor!
or!transformer!to!correct.!
15!
Dyn!Brake!
Dynamic!brake!
overload!
0!
DB!circuit!is!active!on!power-up!(not&
auto-resettable)&!
Check!for!a!failed!braking!transistor.!
Consult!the!factory.!!
1!
DB!circuit!is!being!activated!for!too!
long,!possibly!cau s ing !t h e!re s ist o r!to !
overheat!or!fail.!!
Reduce!the!braking!cycle!or!increase!
capacity.!Activate!the!current!limit;!
consult!the!factory.!!
2!
DB!circuit!is!overloaded!because!of!too!
large!a!regenerative!lo a d . !
Reduce!the!braking!cycle!or!increase!
capacity.!Activate!the!current!limit;!
consult!the!factory.!
3,4,5!
DB!circuit!is!faulty!on!power-up!(not&
auto-resettable).&!
!
18!
OverCurrent!
Overcurrent!
condition!
0!
The!drive!detected!an!overcurrent!
condition!on!power-up!(not&auto-
resettable).!!
Check!for!a!failed!output!power!device!or!
shorted!motor.!!
1!
The!drive!detected!an!overcurrent!
condition!during!operation.!The!current!
has!exceeded!the!safe!operation!point!
of!power!devices.!!
Reduce!the!load!on!the!motor.!Verify!
that!Motor!FLA!is!programmed!
correctly.!Check!for!mechanical!binding!
and!shock!loading.!!
19!
Over!Temp!
Over-!
temperature!
condition!
0!
The!temperature!of!the!heat!sink!
exceeded!a!temperature!limit.!!
Check!that!ambient!temperature!does!
not!exceed!the!drive’s!rating.!Check!fan!
operation!(if!the!drive!has!fans!installed).!!
1!
The!temperature!of!the!control!board!
exceeded!a!temperature!limit.!!
Check!that!ambient!temperature!does!
not!exceed!the!drive’s!rating.!Check!fan!
operation!(if!the!drive!has!fans!installed).!!
2!
The!drive!detected!that!the!heat!sink!
thermistor!sensor!is!faulty!or!not!
connected!properly.!!
Check!the!thermistor!connections!or!
replace.!Consult!the!factory.!!
3!
The!drive!detected!that!the!control!
board!thermistor!sensor!is!faulty!or!not!
connected!properly.!
Check!the!thermistor!connections!or!
replace.!Consult!the!factory.!!
20!
Motor!TOL!!
Motor!timed!
overload!trip!!
0!
The!drive!detected!an!overload!that!
exceeds!the!customer’s!defined!
overload!setting.!!
Check!load!current!demand.!Verify!that!
Motor!FLA!is!programmed!to!the!correct!
value.!Verify!that!TOL!characteristic!is!
correct!for!the!application.!!
21!
Low!Temp!!
Low!
temperature!!
0!
The!temperature!of!the!heat!sink!fell!
below!-10°!C.!!
Verify!that!ambient!temperature!is!
within!the!drive’s!specifications;!increase!
the!ambient!temperature!if!necessary.!!
22!
Ref!Loss!!
Speed!reference!
loss!!
0!
The!drive!detected!that!the!analog!
input!was!config u red !t o !fau lt !if!th e !
input!current!wen t !be lo w !t h e!le v el!
specified!by!customer!parameters.!!
Check!the!physical!connections!for!a!
reference!signal.!Check!that!the!
programming!for!a!4–20!mA!signal!is!
correct.!Verify!that!the!signal!to!the!drive!
is!correct.!!
23!
Brk!Wire!!
Broken!wire!
detection!!
0!
The!drive!detected!that!the!
potentiometer!circuit!wiring!opened!
and!generated!a!fault.!!
Check!the!wiring!for!loss!of!connection!
to!control!terminals.!Check!that!a!
potentiometer!of!the!proper!value!is!
installed.!!
!