3 SIGNALS AND WIRING
3.6 Forced stop deceleration function
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3.6
Forced stop deceleration function
• When alarms not related to the forced stop function occur, control of motor deceleration cannot be
guaranteed.
• When network communication is shut-off, forced stop deceleration will operate.
network communication is shut-off
• In the torque mode, the forced stop deceleration function is not available.
• Disable the forced stop deceleration function for a machine in which multiple axes are connected together,
such as a tandem structure. If an alarm occurs with the forced stop deceleration function disabled, the servo
motor will stop with the dynamic brake.
• Keep the servo-on command (from controller) and ready-on command (from controller) on while EM2
(Forced stop 2) is off. When the servo-on command (from controller) or ready-on command (from controller)
is off, forced stop deceleration, base circuit shut-off delay time, and vertical axis freefall prevention do not
function.
Forced stop deceleration function
When EM2 is turned off, dynamic brake will start to stop the servo motor after forced stop deceleration. During this sequence,
the display shows [AL. E6 Servo forced stop warning].
During normal operation, do not use EM2 (Forced stop 2) to alternate stop and drive. The servo amplifier life may be
shortened.
Connection diagram
*1 This diagram shows sink I/O interface. For source I/O interface, refer to the following.
Servo amplifier
Forced stop 2
DICOM
EM2
24 V DC
*1
Summary of Contents for MELSERVO-J4 series
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