Filter
Top Products
3 - 2
3. SIGNALS AND WIRING
3.1 Input power supply circuit
CAUTION
Always connect a magnetic contactor between the main circuit power and L1, L2,
and L
3 of the servo amplifier, and configure the wiring to be able to shut down the
power supply on the side of the servo amplifier’s power supply. If a magnetic
contactor is not connected, continuous flow of a large current may cause a fire when
the servo amplifier malfunctions.
Use the trouble (ALM) to switch power off. Otherwise, a regenerative transistor fault
or the like may overheat the regenerative resistor, causing a fire.
Check the model and input the correct voltage for the power supply of the servo
amplifier. When a voltage, which exceeds the maximum input voltage of the servo
amplifier specifications, is input, the servo amplifier malfunctions.
Wire the power supply and main circuit as shown below so that the servo-on (SON) turns off as soon as alarm
occurrence is detected and power is shut off.
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 to MR-J3-10A to MR-J3-350A
P( )
N( )
(Note 4)
Trouble
SON
EMG
L
1
L
2
L3
3-phase
200 to
230VAC
ALM
P
1
P
2
DICOM
DOCOM
L11
L21
D
C
U
V
W
(Note 1)
(Note 2)
CNP1
CNP3
PE
CNP2
U
V
W
M
Motor
Encoder
CN2
(Note 3)
Encoder cable
(Note 5)
DOCOM
CN1 CN1
24VDC
Trouble
(Note 4)
MCNFB
RA
Servo motorServo amplifier
Emergency stop (Note 6)
Servo-on
RA
Emergency stop
OFF
MC
ON
MC
SK
(Note 6)
(Note 7)