Omron R88M-K - Page 266

4 System Design
4-20
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
R88D-KN150F-ECT
RT
NFB
S
Noise filter (*1)
123
456
E
NF
Ground to
10 Ω or less
3-phase 380 to 480 VAC 50/60Hz
PL
Servo error display
24V
0V
L1
L2
L3
G5-Series
AC Servo Drive
ALMCOM
/ALM3
4
User-side
control
device
CN1
X
24VDC
1
2
BKIR
BKIRCOM
XB
24VDC
Control cables
W
V
U
B
E
M
CN2
Encoder cables
Power cable
24VDC
(*3)
(*2)
CN1
CN1
*1. A recommended product is listed in 4-3,
Wiring Confirming to EMC Directives.
*2. Recommended relay: MY relay by
OMRON (24-V) For example, MY2 relay by
OMRON can be used with all G5-series
motors with brakes because its rated
induction load is 2 A (24 VDC).
*3. There is no polarity on the brakes.
*4. Provide auxiliary contacts to protect the
system with an external sequence so that a
Servo ON state will not occur due to
deposition in the Dynamic Brake Resistor.
*5. Use an external Dynamic Brake Resistor
of 4.8 Ω, 400 W
*6. Wire the circuit so that the voltage between
DB1 and DB2 is 400 VAC or less.
Install an external protective device, such as
a temperature fuse. Monitor the
temperature of the external Dynamic Brake
Resistor
Reactor
TB1
TB2
TB1
X
XB
X
Main circuit contactor (*1)
1MC
Surge suppressor
(*1)
OFF ON X
1MC
Main circuit
power supply
2MC
1MC
24VDC
G5-Series
AC Servo Drive
Ground to
10 Ω or less
B1
B2
Regeneration
Resistor
(*5)
2MC
Surge suppressor
(*6)
DB1 DB2
(*4)
Power supply
(neutral point)