Inovance MD320 Series, User Manual

Page: 174 / 202

Fault Diagnosis and Solution MD320/MD320N User Manual
No. Fault Phenomenon Possible Cause Solution
7 DI terminal disabled
1. The parameter is set
2. wrongly.
3.
The short circuit copper bar
between OP and +24V is
loosen.
4. Control board fault.
1. Check and reset Group F4
related parameters.
2. Reconnect the cables.
3. Consult the manufacturer.
8
I n t h e c l o s e l o o p
YHFWRUFRQWUROPRGH
the motor speed is
always low.
1. T h e P G i s d a m a g e d o r
cable connection is wrong.
2. The internal parts of the
inverter are damaged.
1. Replace the PG and
2.
UHFRQ¿UPWKHFDEOH
3. connection.
4.
Consult the manufacturer.
9
The inverter
frequently reports
over current fault and
over voltage fault.
1. The motor parameters are
set wrongly.
2. Acceleration/deceleration
time is improper.
3.
/RDGÀXFWXDWHV
1. Reset Group F1
2. parameters or perform
motor tuning.
3. Set proper acceleration/
deceleration.
4. Consult the manufacturer.
10
E R R 1 7 a l a r m i s
reported upon
power-on.
The soft start contactor is not
switched on.
1. Check if the contactor
cables are loosened;
2. Check if the contactor has
fault;
3. Check if the 24V power
supply of the contactor
has fault;
4. Consult the manufacturer.
efesotomasyon.com