8-4              
 
Alarm 
Code 
Alarm Name 
and Description 
Corrective Actions 
Reset 
Method
Emergency  Stop 
09 
When the input contact point 
EMC is activated. Alarm 09 
appears.  
1. Disable Emergency stop signal input. 
2. Internal mal-function. 
    Ensure that all connection are 
    correct, refer to Chapter 2 Power and motor 
circuit diagrams connection. 
Control wiring diagrams.  
Turn 
ALRS 
(DI) 
ON 
Motor over-current 
10 
Motor current is 4 times greater 
than rated current. 
1. Check if the motor wiring U,V,W)and encoder 
wiring correct or not.  
2 .Internal interference and mal-function. Ensure 
that all connection are correct refer to Chapter 2 
Power and motor circuit diagrams.  
Turn 
ALRS 
(DI) 
ON 
Position error 
11 
The deviation between Pulse 
command and encoder feed 
back ( position error) is greater 
than the setting of Pn308 or 
Pn309. 
1. Increase the position loop gain (Pn310 and 
Pn311) setting value. 
2.  Increase in position tolerance value by (Pn307) 
for a better motor response. 
3. Extend the time of ac/deceleration or reduce 
load inertia in the permitted range.  
4. Check if the motor wiring (U,V,W)  is correct. 
Turn 
ALRS 
(DI) 
ON 
Motor over speed 
12 
Motor’s speed is 1.5 times more 
then motor’s rated speed. 
1. Reduce the speed command.  
2. Electronic gear ratio is  incorrect  check  and set 
 correctly.  
3. Adjust speed loop gains (Sn211 & Sn213) for a 
better motor response. 
Turn 
ALRS 
(DI) 
ON 
CPU Error 
13 
Control system Mal-function. 
Turn off the power. Turn on again after 30min. If 
error alarm still exists, this may be due to external 
interference. Refer to the chapter 2 Motor 、 power 
cable and control signals connections. 
Reset 
Power 
Supply 
Drive disable 
14 
When input contacts CCWL & 
 CWL are operated at the same
 time this alarm occurs. 
1. Remove input contact signal  
CCWL or CWL. 
2. Check all input wiring for correct connections. 
3. For the selected High /Low logic 
   potential  settings refer to Section 
   5-6-1. 
Turn 
ALRS 
(DI) 
ON 
Drive overheat 
15 
Power transistor temperature 
exceeds 90°C.  
Over-load for a long duration will cause driver 
overheat, check and reset operation system. 
Turn 
ALRS 
(DI) 
ON 
Absolute Encoder Battery 
error 
16 
Battery module remove or 
battery voltage is lower than 
3.2V  
Make sure if battery module is removed, power 
supply is losing, or battery is power shortage and 
requires replacing. 
Turn 
ALRS 
(DI) 
ON