Mitsubishi Electric MELSERVO-J5 MR-J5-G Series, Руководство пользователя

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7 ABSOLUTE POSITION DETECTION SYSTEM
7.2 Battery-less/battery
295
7
Using the MR-BT6VCASE battery case
One MR-BBT6VCASE can hold the absolute position data of up to 8-axis servo motors.
Install five MR-BAT6V1 batteries to MR-BT6VCASE.
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System architecture
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Specification list
*1 Maximum speed available when the shaft is rotated by external force at the time of power failure.
*2 The data-holding time with five MR-BAT6V1. The battery life varies depending on the number of target axes (including axis for using in
the incremental system). 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.
Item Description
System Electronic, battery backup type
Maximum revolution range Home position ± 32767 rev
Maximum speed at power failure
[r/min]
*1
Direct drive motor manufactured by
Mitsubishi Electric 500
(only when acceleration/deceleration time until 500 r/min is 0.1 s or longer)
Battery backup time
*2
Direct drive motor manufactured by
Mitsubishi Electric Approximately 10000 hours/2 axes or less, 7000 hours/3 axes, or 5000
hours/4 axes
(equipment power supply: off, ambient temperature: 20 °C)
Approximately 15000 hours/2 axes or less, 13000 hours/3 axes, or 10000
hours/4 axes
(When the power-on ratio: 25 %, and the ambient temperature is 20
˚ C)
*3
MR-BT6VCASE
LSO
1XO
(6 V → 3.4 V)
Controller Servo amplifier
Home position data
Command
position
Current position
Backup at
power off
Control
1X
Detecting the
position within
one revolution
LS
Detecting the
number of
revolutions
Step-down
circuit
MR-BAT6V1 × 5
Cumulative revolution counter (1 pulse/rev)
High speed
serial
communication
One-revolution counter
Direct drive motor
Non-volatile memory