Connecting The Battery Backup Type Absolute Position Encoder - Mitsubishi Electric MELSERVO-J5 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
■System architecture
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
294
7.2 Battery-less/battery
Home position data
Command
Non-volatile memory
position
Backup at
power off
Step-down
circuit
(6 V → 3.4 V)
MR-BAT6V1SET-A
Direct drive 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
Current
LSO
position
1XO
LS
Detecting the
number of
revolutions
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)
Control
1X
Detecting the
position within
one revolution
High speed
serial
communication
*3