3. SIGNALS AND WIRING
3 - 21
3.6.2 Base circuit shut-off delay time function
The base circuit shut-off delay time function is used to prevent vertical axis from dropping at a forced stop
(EM2 goes off), alarm occurrence, or SSCNET III/H communication shut-off due to delay time of the
electromagnetic brake. Set the time from MBR (Electromagnetic brake interlock) off to base circuit shut-off
with [Pr. PC02].
(1) Timing chart
B-axis
or
C-axis
C
MBR-A
(Electromagnetic
brake interlock A)
ON
OFF (Enabled)
Base circuit
(Energy supply to
the servo motor)
0 r/min
Servo motor
speed
ON
OFF (Enabled)
EM2 (Forced stop 2)
ON
OFF
ON
OFF (Enabled)
Base circuit
(Energy supply to
the servo motor)
0 r/min
Servo motor
speed
ON
OFF
[Pr. PC02]
[Pr. PC02]
A-axis
MBR-B or MBR-C
When EM2 (Forced stop 2) turns off or
an alarm occurs during driving, the
servo motor will decelerate based on
the deceleration time constant. MBR
(Electromagnetic brake interlock) will
turn off, and then after the delay time
set in [Pr. PC02], the servo amplifier
will be base circuit shut-off status.
(2) Adjustment
While the servo motor is stopped, turn off EM2 (Forced stop 2), adjust the base circuit shut-off delay
time in [Pr. PC02], and set the value to approximately 1.5 times of the smallest delay time in which the
servo motor shaft does not freefall.
Summary of Contents for MR-J4W2-0303B6
Page 39: ...2 INSTALLATION 2 8 MEMO ...
Page 97: ...4 STARTUP 4 20 MEMO ...
Page 181: ...6 NORMAL GAIN ADJUSTMENT 6 28 MEMO ...
Page 235: ...9 DIMENSIONS 9 6 MEMO ...
Page 245: ...10 CHARACTERISTICS 10 10 MEMO ...
Page 309: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 365: ...15 USING A DIRECT DRIVE MOTOR 15 24 MEMO ...
Page 389: ...16 FULLY CLOSED LOOP SYSTEM 16 24 MEMO ...
Page 461: ...17 APPLICATION OF FUNCTIONS 17 72 MEMO ...
Page 556: ...APPENDIX App 41 ...
Page 585: ...MEMO ...