Instruction manual

7 - 7
7. TROUBLESHOOTING
7.3 Remedies for warnings
POINT
When any of the following alarms has occurred, do not resume operation by
switching power of the servo amplifier OFF/ON repeatedly. The servo amplifier
and linear servo motor may become faulty. If the power of the servo amplifier is
switched OFF/ON during the alarms, allow more than 30 minutes for cooling
before resuming operation.
Excessive regenerative warning (E0)
Overload warning 1 (E1)
If E6, E7 or E9 occurs, the servo off status is established. If any other warning occurs, operation can be
continued but an alarm may take place or proper operation may not be performed. Use the optional servo
configuration software to refer to the cause of warning.
Remove the cause of warning according to this section. Use the MR Configulator to refer to a factor of
warning occurrence.
Display Name Definition Cause Action
96 Home position
setting error
E0 Excessive
regeneration
warning
E1 Overload
warning 1
Refer to Chapter 8 of the MR-J3-
B Servo Amplifier Instruction Manual.
1. Ambient temperature of linear
servo motor is over 40
.
Review environment so that
ambient temperature is 0 to 40 .
2. Linear servo motor is
overloaded.
1. Reduce load.
2. Review operation pattern.
3. Use linear servo motor that
provides larger output.
E2 Linear servo
motor
overheat
warning
Linear servo motor temperature
rose and exceeded 85% of the
alarm occurrence level.
3. Thermistor in linear servo motor
is faulty.
Replace the primary side of linear
servo motor.
E4 Parameter
warning
E6 Servo forced
stop warning
E7 Controller
emergency
stop warning
E8 Cooling fan
speed
reduction
warning
E9 Main circuit off
warning
EC Overload
warning 2
ED Output watt
excess
warning
Refer to Chapter 8 of the MR-J3-
B Servo Amplifier Instruction Manual.