Omron R88M-K - Page 265

4-19
4 System Design
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
4-2 Wiring
4
4-2-2 Peripheral Equipment Connection Examples
R88D-KN75F-ECT
RT
NFB
S
Noise filter (*1)
123
456
E
NF
Ground to
10 Ω or less
3-phase 380 to 480 VAC, 50/60 Hz
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
G5-Series
AC Servomotor
W
V
U
B
E
M
CN2
Encoder cables
Power cables
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. When using an externally connected
Dynamic Brake Resistor, remove the
short bar from between DB3 and DB4.
*5.
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.
*6. A Dynamic Brake Resistor of 8 Ω, 180 W is
built in. If the capacity is insufficient, use an
external Dynamic Brake Resistor of 4.8 Ω,
400 W. Do not use the built-in resistor and
an external resistor at the same time.
*7. 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
Ground to
10 Ω or less
X
XB
X
Main circuit contactor (*1)
1MC
Surge suppressor (*1)
OFF ON
X
1MC
Main circuit
power supply
1MC
24VDC
2MC
B1
B2
Regeneration
Resistor
(*5) (*6)
2MC
Surge suppressor
(*7)
DB1 DB2 DB3 DB4
(*4)
Power supply
(neutral point)