Suzhou MONARCH Control Technology Co., Ltd. NICE3000 New, User Manual, Page: 219 / 233

NICE3000
new
User Manual Troubleshooting
- 217 -
Fault
Code
Name Possible Causes Solution Level
Err05
Over-voltage
during
acceleration
1. The input voltage is
too high.
2. The regeneration
power of the motor is
too high.
3. The braking
resistance is too large,
or the braking unit fails.
4. The acceleration rate
is too short.
1. Adjust the input voltage. Observe
whether the bus voltage is normal
and whether it rises too quickly
during running.
2. Check for the balance coefficient.
3. Select a proper braking
resistor and check whether the
resistance is too large based on the
recommended braking resistance
table in chapter 3.
4. Check:
• Whether the cable connecting
the braking resistor is damaged
• Whether the cooper wire touches
the ground
• Whether the connection is
reliable
5A
Err06
Over-voltage
during
deceleration
1. The input voltage is
too high.
2. The braking
resistance is too large,
or the braking unit fails.
3. The deceleration
rate is too short.
5A
Err07
Over-voltage at
constant speed
1. The input voltage is
too high.
2. The braking
resistance is too large,
or the braking unit fails.
5A
Err08
Pre-charge
relay not close
at power-on
1. The external power
supply is instable.
2. The hardware is
faulty.
1. Check whether the external
power supply is stable and whether
the wiring of all power input cables
is secure.
2. Forbid frequently powering on
the controller on the condition that
the controller is not powered off
completely.
3. For the hardware fault, contact
the agent or Monarch.
5A
Err09 Under-voltage
1. Instantaneous power
failure occurs on the
input power supply.
2. The input voltage is
too low.
3. The drive control
board fails.
1. Eliminate external power supply
faults and check whether the power
fails during running.
2. Check whether the wiring of all
power input cables is secure.
3. Contact the agent or Monarch.
5A