Sako V780 - Page 67

61
Fault Name Display Possible Causes Solutions
Overvoltage
during
acceleration
Err05
1: The input voltage is too high.
2: An external force drives the
motor during acceleration.
3: The acceleration time is too
short.
4: The braking unit and braking
resistor are not installed.
1: Adjust the voltage to
normal range.
2: Cancel the external force
or install a braking resistor.
3: Increase the acceleration
time.
4: Install the braking unit
and braking resistor.
Overvoltage
during
deceleration
Err06
1: The input voltage is too high.
2: An external force drives the
motor during deceleration.
3: The deceleration time is too
short.
4: The braking unit and braking
resistor are not installed.
1: Adjust the voltage to
normal range.
2: Cancel the external force
or install the braking resistor.
3: Increase the deceleration
time.
4: Install the braking unit
and braking resistor.
Overvoltage
at constant
speed
Err07
1: The input voltage is too high.
2: An external force drives the
motor during deceleration.
1: Adjust the voltage to
normal range.
2: Cancel the external force
or install the braking resistor.
Control power
supply fault
Err08
The input voltage is not within the
allowable range.
Adjust the input voltage to
the allowable range.
Undervoltage Err09
1: Instantaneous power failure
occurs on the input power supply.
2: The AC drive's input voltage is
not within the allowable range.
3: The bus voltage is abnormal.
4: The recti󽗉er bridge and bu󽗈er
resistor are faulty.
5: The drive board is faulty.
6: The main control board is faulty.
1: Reset the fault.
2: Adjust the voltage to
normal range.
3: Contact technical support.
7.2 Troubleshooting List