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3. SIGNALS AND WIRING
3.4 Signals and wiring for base unit
CAUTION
When each unit has become faulty, switch power off on the base unit power side.
Continuous flow of a large current may cause a fire.
Switch power off at detection of an alarm. Otherwise, a regenerative brake
transistor fault or the like may overheat the regenerative brake resistor, causing a
fire.
Fabricate the cables noting the shapes of the CNP1A housing (X type) and CNP1B
housing (Y type).
3.4.1 Connection example of power line circuit
Wire the power supply/main circuit as shown below so that power is shut off and the servo-on command
turned off as soon as an alarm occurs, a servo forced stop is made valid, or a controller forced stop is made
valid. A no-fuse breaker (NFB) must be used with the input cables of the power supply.
(1) For 3-phase 200 to 230VAC power supply
EM1
VIN
MC
SK
NFB MC
SG
1L
1
L
2
L3
2
3
1L
11
L
21
2
CNP3
CNP1B
CN3
(Note)
Alarm
RA1
Controller
forced stop
RA2
Forced
stop
OFF
ON
MC
MELSERVO-
J2M
Power supply
3-phase
200 to 230VAC
Forced stop
24VDC
Note. Configure up the power supply circuit which switches off the magnetic contactor after detection of alarm occurrence on the controller
side.