User Manual of EM730/EM730E Series Inverter
305
high.
2. Check the analog terminal for
normal detection of analog input.
3. Check the external device.
E58
Under-pressure
in pipeline
network
1. The feedback pressure in the
water supply application is too
low.
1. Check whether the sensor is in the
abnormal status.
2. Check the analog terminal for
normal detection of analog input.
3. Check the external device.
E76
Short circuit to
the ground
1.
The output is short-circuited to
ground.
2.
The inverter module is
damaged.
1.
Check whether the output cable is
broken or whether the motor shell
is broken down.
2.
Investigate the cause and reset the
controller after implementing the
corresponding solutions.
3.
Seek technical support.
When the inverter is subject to the aforesaid protection, press the STOP/RESET key
to reset/clear protection or use the protection resetting terminal to exit the protection
status. If the protection has been eliminated, the inverter will return to the function setting status;
otherwise, the digital tube will continue to display the current protection information.
The protection number corresponds to the digit behind the letter “E”. For example, the digit
corresponding to “EXX” is “XX”.
For example, E01 corresponds to 1, and E10 corresponds to 10.
Comparison table of digital font display:
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
The prompt codes and description of inverter operation are as follows:
Prompt Code
Description
P
.-
ON
The inverter is in the power-on status.
P
.-
OFF
The inverter is in the power-off status.
SoFT
.
E
If the soft starter is not engaged, the inverter will show the SOFT.E prompt after startup.
When the voltage is restored and the soft starter is engaged, the inverter will work
normally.
