4-19
4-2 Wiring
4
System Design
R88D-GT20H/-GT30H/-GT50H
RT
NFB
S
123
456
E
NF
Three-phase 200 to 230 VAC 50/60 Hz
L1C
L2C
L1
L2
L3
ALMCOM
/ALM37
36
CN1
X
11
10
BKIR
BKIRCOM
XB
W
V
U
B
E
M
CN2
(*3)
(*2)
CN1
CN1
B1
B3
B2
(*4)
TB1
TB1
TB1
XB
2MC
X
1MC
24 VDC
*1.
*2.
*3.
*4.
Regeneration
resistor
Noise filter
(*1)
(Ground to
100 Ω or less.)
(Ground to
100 Ω or less.)
User
control
device
Control Cable
24 VDC
Encoder Cable
OMNUC G-Series
AC Servomotor
Power Cable
Reactor
24 VDC
OMNUC G-Series
AC Servo Drive
Also, to ensure safety (i.e., to ensure that
the power supply can be shut OFF) for
contactor welding, we recommend using
two magnetic contactors (MC).
Connect B2-B3 for the models with a
built-in regeneration resistor (GT20H to
GT50H). If the amount of regeneration
is large, disconnect B2-B3 and connect
an External Regeneration Resistor to
B1-B2.
Recommended relay: MY Relay (24 V),
by OMRON. For example, the MY2
Relay's rated inductive load is 2 A at 24
VDC and applicable to all G-Series
Servomotors with brakes.
The brake is not affected by the polarity
of the power supply.
Recommended products are listed in 4-3
Wiring Conforming to EMC Directives.
1MC
PL
X
Servo error display
Main-circuit contactor (*1)
1MC
OFF
ON
X
Surge suppressor
(*1)
Main circuit power supply
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