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3. SIGNALS AND WIRING
(c) Alarm occurrence
POINT
When the overcurrent(A.32) alarm occurs, the dynamic brake cannot be
operated.
Servo motor speed
ON
OFF
Base circuit
Electromagnetic
brake(CNP2-9)
Invalid(ON)
Valid(OFF)
Trouble (ALM)
No(ON)
Yes(OFF)
Dynamic brake
Dynamic brake
Electromagnetic brake
Electromagnetic brake
operation delay time(10ms)
Electromagnetic brake
(d) Main circuit power off
When main circuit power switches off, the undervoltage alarm (A.10) occurs and the operation
timing is as shown in (c) of this section.
(e) Control circuit power off
POINT
When the control circuit power supply is turned off, the dynamic brake
cannot be operated.
20ms
ON
OFF
Electromagnetic brake
Servo motor speed
Control power
(P24L)
Coasting
(3) Release of electromagnetic brake
To release the electromagnetic brake when main circuit power is off, use the output signal forced
output (refer to Section 6.7).
The electromagnetic brake can be released by turning on the electromagnetic brake power B1 (CNP2-
9).