Page:
67
OIM - Manual
Version:
2014/11
Speedlane 900
Edition:
SL900 -OIM - USA
14.3 Frequency inverter
The Frequency Inverter uses a number of error codes, which are shown in the table below.
For a complete list of fault and alarm indications please refer to vendor documentation.
Error code
Function Name
Definition
Overcurrent trip during
acceleration
The inverter output current rose to or above about
200% of the rated inverter current during
acceleration.
Overcurrent trip during
constant speed
The inverter output current rose to or above about
200% of the rated inverter current during constant-
speed operation.
Overcurrent trip during
deceleration or stop
The inverter output current rose to or above about
200% of the rated inverter current during
deceleration or stop.
Regenerative overvoltage
trip during acceleration
Excessive regenerative energy or surge voltage
occurred during acceleration.
Regenerative overvoltage
trip during constant speed
Excessive regenerative energy or surge voltage
occurred during constant speed.
Regenerative overvoltage
trip during deceleration or
stop
Excessive regenerative energy or surge voltage
occurred during deceleration or stop.
Motor overload trip
(electronic thermal relay
function)
Overload or reduced cooling capability during low-
speed operation Protection from burning due to
motor temperature rise.
Inverter overload trip
(electronic thermal relay
function)
Current more than 150% of the rated output current
flew and overcurrent shut-off did not occur. Output
transistor protection from overheat.
Fin overheat
Temperature rise of the heat sink.
Output side earth (ground)
fault overcurrent
Ground fault occurred on the inverter's output side.
External thermal relay
operation
External thermal relay provided for protection from
overheat was actuated (contact open).
Parameter error
Error occurred in the parameter stored.
Retry count excess
Operation could not be resumed properly within the
pre-set number of retries.
CPU error
Arithmetic operation of the built-in CPU does not end
within the predetermined time.
Frequency Inverter error codes