Connecting The Battery Backup Type Absolute Position Encoder - Mitsubishi Electric MR-J5 Series User Manual

Connecting the battery backup type absolute position encoder

When connecting the battery backup type absolute position encoder, refer to the following.
Using the MR-BAT6V1SET/MR-BAT6V1SET-A battery
■Configuration diagram
Controller
■Specification list
Item
System
Maximum revolution range
Maximum speed at power failure
*1
[r/min]
*2
Battery backup time
*1 Maximum speed available when the shaft is rotated by external force at the time of power failure.
*2 The data-holding time with MR-BAT6V1SET-A. Replace the batteries within three years since the operation start regardless of the power
supply of the servo amplifier on/off. If the battery is used outside of specification range, [AL. 025 Absolute position erased] may occur.
*3 Power-on ratio of 25 % is the equivalent to power-on for 8 hours on weekdays and power-off on weekends.
7 ABSOLUTE POSITION DETECTION SYSTEM
196
7.2 Battery-less/battery
Command
position
Step-down
(6 V → 3.4 V)
MR-BAT6V1SET-A
Servo motor
Cumulative revolution counter
(1 pulse/rev)
One-revolution counter
Direct drive motor manufactured by
Mitsubishi Electric
Direct drive motor manufactured by
Mitsubishi Electric
Servo amplifier
Home position data
Non-volatile memory
LSO
1XO
Backup at
power off
LS
Detecting the
number of
revolutions
circuit
Description
Electronic, battery backup type
Home position ± 32767 rev
500
(only when acceleration/deceleration time until 500 r/min is 0.1 s or longer)
Approximately 5000 hours (when the equipment power is off, and the
ambient temperature is 20 ˚C)
Approximately 15000 hours (when the power-on ratio is 25 %, and the
ambient temperature is 20 ˚C)
Current
position
Control
1X
Detecting the
position within
one revolution
High speed
serial
communication
*3