Sako SKI780 - Page 70

7.2 Troubleshooting List
Fault Name | Display Possible Causes Solutions
Err28
fault 2 2: The user-defined fault 2
signal ts input via virtual |/O.
1: The user-defined fault 2
User-defined signal is input via DI.
Reset the operation.
Accumulative The accumulative power- Clear the record through
power-on Err29 | on time reaches the setting | the parameter initialization
time reached value. function.
Load Err30 The AC drive running current es of
becoming 0 ts lower than P9-64. &
P9-64 and P9-65 is correct.
PID feedback
lost during Err31
running
The PID feedback ts lower
than the setting of PA-26.
Check the PID feedback signal
or set PA-26 to a proper value.
pulse current | Err40 | motor.
1: The load ts too heavy or
Pulse-by- lockedrotor occurs on the
1: Reduce the load and check
the motor and mechanical
condition.
limit fault 2: The AC drive modelis of — | 2: Select an AC drive of higher
too small power class. power class.
Motor
Change the selection of the
switchover Perform motor switchover
‘ Err41 | motor via terminal during
fault during after the AC drive stops.
running of the AC drive.
running
1: The cabling of the 1: Check the temperature
sensor cabling and eliminate
temperature sensor becomes
Motor the cabling fault.
Err45 | loose.
overheat ._ | 2: Lower the carrier frequency
2: The motor temperature is
or adopt other heat radiation
too high.
measures.
Check that the motor
. The motor parameters are
Initial parameters are set correctly
position fault
Err51 | not set based on the actual
situation.
and whether the setting of
rated current is too small.
www sakohzcom/ 64