Fastech Ezi-Servo ALL User Manual

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14. Protective Function
14. Protective Function
14.1 Alarm Type
When an alarm occurs while the controller is operating, a red LED among status display LEDs
flash and the following protective function will be displayed according to the number of LED
flash counting.
Alarm Table
*1 4.5A : EzS-NDR-20, EzS-NDR-28, EzS-NDR-42, EzS-NDR-56, EzS-NDR-60 model
9.0A : EzS-NDR-86 model
*2 Values[pulse] of parameter ‘Pos Tracking Limit[No.27]
*3 70V : EzS-NDR-20, EzS-NDR-28, EzS-NDR-42, EzS-NDR-56, EzS-NDR-60 model
90V : EzS-NDR-86 model
*4 20V : EzS-NDR-20, EzS-NDR-28, EzS-NDR-42, EzS-NDR-56, EzS-NDR-60 model
40V : EzS-NDR-86 model
*6 Values[pulse] of parameter ‘Pos. Error Overflow Limit[No.33]
14.2 Acquiring Alarm Information
When an alarm occurs, the motor become Servo OFF and then stops by free run and at the same
time displays alarm message.
Also, ‘AlarmBlink’ signal repeats On/Off according to the timing as illustrated below. The
red LED flash every 0.5 second in accordance with alarm number and wait for 2 seconds. And
then red LED flash repeatedly until inputting ‘AlarmReset’signal.
(Example) Alarm 3： ‘AlarmBlink’display signal occurred when the step-out is occured.
Flash
Count
Alarm Name
Description
1
Overcurrent
The current through power devices in inverter exceeds the limit
value *1
2
Overspeed
Command speed for motor exceeds 3300[rpm].
3
Position Tracking
Position error value is higher than specified value*1 in
position command status . *2
4
Overload
The motor is continuously operated more than 5 second under a
load exceeding the max. torque.
5
Overheat
The internal temperature of the drive exceeds 85℃.
6
Over regeneratived
voltage
Back-EMF more than limit value. *3
7
Motor connection
The connection of drive and motor is defective.
8
Encoder connection
The connection of drive and encoder is defective.
9
Motor voltage error
The power supplied to the motor is less than low limit value.*4
10
Inposition error
After operation is finished, a position error occurs.
11
System error
Drive system is halted(Watch Dog Timer).
12
ROM error
Read/Write error on ROM device in drive system.
15
Pos. Error Overflow
Position error value is higher than specified value*1 in motor
stop status. *6

Fastech Ezi-Servo ALL Specifications

General

Brand	Fastech
Model	Ezi-Servo ALL
Category	Controller
Language	English