Page 8.1 - 8 COMBIVERT F5-A, -E, -H © KEB, 2012-10
Troubleshooting
Display COMBIVIS Value Meaning
E. UP
Error ! underpotential 2
Error: Undervoltage (DC-link circuit). Occurs, if DC-link voltage falls
below the permissible value. Causes:
input voltage too low or unstable
inverter rating too small
voltage losses through wrong cabling
the supply voltage through generator / transformer breaks down at
very short ramps
at F5-G B housing E.UP is also displayed if no communication takes
place between power circuit and control card.
jump factor (Pn.56) too small
if a digital input was programmed as external error input with error
message E.UP (Pn.65).
E.UPh
Error ! Phase failure 3 One phase of the input voltage is missing (ripple-detection)
Warning Messages
A.buS Warning ! Watchdog 93
Watchdog for communication between operator - PC or operator
- inverter has responded. The response to this warning can be
programmed.
A.dOH
Warning ! drive overheat 96
The motor temperature has exceeded an adjustable warning level.
The switch off time is started. The response to this warning can be
programmed. This warning can be generated only with a special
power circuit.
A. EF
Warning ! ERROR external
fault
90
This warning is triggered via an external input. The response to this
warning can be programmed.
A.ndOH no ABN.STOP drive overheat 91
The motor temperature is again below the adjusted warning level.
The switch off time is stopped.
A.nOH
no ABN.STOP overheat pow.
mod.
88 The heat sink temperature is again below the adjusted warning level.
A.nOHI
no ABN.STOP overheat
internal
92
The temperature in the interior of the inverter is again below the
warning threshold.
A.nOL no ABN.STOP overload 98
Warning: no more overload, OL counter has reached 0 %, warning
„overload" can be reset.
A.nOL2 no ABN.STOP overload 2 101
The cooling time after “Warning! Overload during standstill" has
elapsed. The warning message can be reset.
A. OH
Warning ! overheat pow.mod. 89
This warning is output when the dened level is exceeded. Furthermore
the response to this warning can be programmed.
A.OH2
Warning ! motor protection 97
Warning: electronic motor protective relay has tripped. The response
to this warning can be programmed.
A.OHI
Warning ! overheat internal 87
The temperature in the interior of the inverter is above the permissible
level. The switch off time was started. The programmed response to
this warning message is executed.
A. OL
Warning ! overload 99
A level between 0 and 100 % of the load counter can be adjusted.
The warning is output on exceeding this level. The response to this
warning can be programmed.
A.OL2
Warning ! overload 2 100
The warning is output when the standstill continuous current is
exceeded (see technical data and overload characteristics). The
response to this warning can be programmed. The warning message
can only be reset after the cooling time has elapsed and A.nOL2 is
displayed.
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