Megmeet MV600L Series - Abnormal AI Analog Input

63
Fault
code
Fault type Possible fault cause Solutions
The motor fan is damaged. Replace the motor fan
The motor operates at low frequency
and large load for a long time.
Add a large fan for the motor to dissipate heat
Er.AIF
Abnormal AI
analog input
Abnormal control circuit Seek for service support
The input analog is out of the range and
the absolute value is greater than 11V
Check the analog input
Er.THI
Inverter module
temperature
sampling
disconnection
Abnormal temperature sampling circuit Seek for service support
The inverter module temperature
sampling wire is poorly connected.
Check the inverter module temperature sampling
wire connection
Er.THr
Rectifier module
temperature
sampling
disconnection
Abnormal temperature sampling circuit Seek for service support
The temperature sampling wire is
poorly connected.
Check the temperature sampling wire connection
Er.10v
Control board
±10V power
short circuit
±10V grounding Confirm whether the ±10V wiring is correct
The interface board circuit is damaged.
Replace the interface board, seek for service
support
Er.rEF
Abnormal
internal
over-current
reference
The control board circuit is damaged. Seek for service support
Er.bCF
Abnormal brake
closing
Abnormal brake main power supply
Check whether the brake main power supply is
normal
Abnormal encoder power supply or A, B
phase signal of encoder input
Check whether the encoder power supply and
wiring are normal
Brake mechanical fault Check whether the mechanical brake is normal
Er.SAF
Safety terminal
fault
When you select an terminal for safety
circuit input terminal, safety circuit
terminal input signal must be closed
Safety circuit terminals must input, find which safety
terminals are not connected
Er.SoC Stall fault
When the motor is running, the critical
state of the overvoltage, overcurrent
occurs
Adjust the acceleration and deceleration time,add
the braking resistor
Er.bSF
Abnormal
mechanical
brake
Mechanical brake performance is not
good, heavy load slip hook
Check the mechanical spring, change brake pads