JVL MAC050 User Manual page 46

2.7 Error messages and error handling
2.7.12 Error message 'UnderVoltage on Bus' (only MAC050 to 141-A)
Message no. / Message
Type / Motor action
Error condition
Possible cause of this error
Solutions to avoid error
How to return to normal
operation
Error bit / Firmware name
2.7.13 Error mess. 'Peak error, motor overcurrent' (only MAC400 to 3000)
Message no. / Message
Type / Motor action
Error condition
Possible cause of this error
Solutions to avoid error
How to return to normal
operation
Error bit / Firmware name
42 JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
13 / 'UnderVoltage on Bus'
Unrecoverable error / Motor is set in passive mode.
The voltage of the DC power supply has been measured to be
lower than the limit selected in the register 'Min voltage'. This
has resulted in an error as configured in the setup of 'Under-
voltage handling'. See also
Please note that this message is only available in MAC050 to
MAC141-A.
- The current rating of the external power supply is too small.
- The power supply is not able to deliver the required peak
currents that the motor need. This is a typical problem when
using switch mode power supply.
- The power cable is under dimensioned.
- The under voltage min. setting must be decreased.
- Use a power supply with a higher current rating.
- Use a power cable with at least 0,75mm² wires (up to cable
lengths of 10m. If the power cable is longer, use 1,5mm² or
use multiple wires in parallel.
- Connect a capacitor across the supply line close to the mo-
tor. Especially if using a switch mode power supply this will
help.
See also Power supply (only MAC050 to 141), page
- Reset the motor, clear the error bit(s) in register 35 or cycle
the power.
Bit 12 / 'UV_ERR'
13 / 'Peak error, motor overcurrent'
Unrecoverable error / Motor is set in passive mode.
The motor phase current has been measured to be Out of
Range and the motor driver is shut down to prevent perma-
nent failure.
Please note that this message is only available in MAC400, 402,
800, 1200, 1500, 3000 and MAC4500.
- The servo filter (control loop) is unstable.
- The motor has been physically blocked.
- The motor has been running into a sudden mechanical colli-
sion.
- The actual AC supply voltage is too low to run the motor at
the actual speed.
- Make sure that the servo filter is not set at an extreme unre-
alistic setting compared to the nature of the actual load. See
also Servo filter adjustment, page
- Avoid that the motor during normal operation is meeting a
mechanical collision or an extreme overload situation.
- This error type is not software resetable. Cycle the control
voltage (24VDC).
Bit 12 / 'IPEAK_ERR'
Under Voltage Handling, page
89.
49.
48.