Mitsumi electronic MR-J3- A Manual De Usuario

 

 

14 -  3 

14. ABSOLUTE POSITION DETECTION SYSTEM 

 
14.2 Specifications 

(1) Specification list 

 

Item Description 

System 

Electronic battery backup system 

Battery 

1 piece of lithium battery (primary battery, nominal 3.6V) 
Type: MR-J3BAT 

Maximum revolution range 

Home position 32767 rev. 

(Note 1) Maximum speed at power failure 

3000r/min 

(Note 2) Battery backup time 

Approx. 10,000 hours (battery life with power off) 

(Note 3) Battery life 

5 years from date of manufacture 

Note 1. Maximum speed available when the shaft is rotated by external force at the time of power failure or the like. 

2. Time to hold data by a battery with power off. Replace battery within three years since the operation start whether power is 

kept on/off. If the battery is used out of specification, the absolute position erase (AL.25) may occur. 

3. Quality of battery degrades by the storage condition. It is recommended to connect and use battery in the servo amplifier 

within two years from the production date. The life of battery is five years from the production date regardless of the 
connection. 

 
(2) Configuration 

 

Positioning module 

I/O module 

QD75  QX40 41 42  QY40 41 42 50 
A1SD75  AX40 41 42   AY40 41 42 
FX

2N

-1GP FX

2N

-10PG FX

2N

-10GM FX

2N

-20GM FX

2N(c)

 series FX

3U(c)

 series 

 

Servo motor

QD75    etc.

Programmable controller

Servo amplifier

CN1 CN2

Battery
(MR-J3BAT)

I/O

CN4

 

(3) Parameter setting 

Set "

1" in parameter No.PA03 to make the absolute position detection system valid. Set "

2" 

when using the communication-based ABS transfer system. Refer to section 14.12 for the communication-
based ABS transfer system. 

Absolute position detection system selection
0: Used in incremental system
1: Used in absolute position detection system
    ABS transfer by DI0
2: Used in absolute position detection system
    ABS transfer by communication

Parameter No.PA03