Omron R88D-KN series User Manual page 126

4 System Design
R88D-KN75F-ECT-L
Ground to
10 Ω or less
Reactor
Power supply
(neutral point)
Regeneration
Resistor
24 VDC
User-side
control
device
(*6)
4-12
R S T
3-phase 380 to 480 VAC, 50/60 Hz
NFB
Noise filter (*1)
1 2 3
Main circuit
NF
E
power supply
4 5 6
OFF
X
G5-Series
AC Servo Drive
TB2
24V
0V
24 VDC
1MC
TB1
L1
L2
L3
B1
B2
CN1
X
3 /ALM
4 ALMCOM
X
CN1
BKIRCOM
Control cables
DB1 DB2 DB3 DB4
Surge suppressor
2MC
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Main circuit
contactor (*1)
ON X
1MC
Surge suppressor (*1)
1MC
PL
Servo error display
Power cables
TB1
U
V
W
Ground to
CN4
10 Ω or less
External Encoder cables
*1. A recommended product is listed in 4-3,
*2. Recommended relay: MY relay by
*3. When using an externally connected
CN1
*4. Provide auxiliary contacts to protect the
24 VDC
XB
BKIR 1
(*2)
2
*5. A Dynamic Brake Resistor of 8 Ω, 180
(*3)
*6. Wire the circuit so that the voltage
2MC
(*4) (*5)
Motor
M
S
Wiring Confirming to EMC Directives.
OMRON (24-V)
MY2 relay by OMRON can be used for
a rated inductive load of 2 A (24 VDC).
Dynamic Brake Resistor, remove the
short bar from between DB3 and DB4.
system with an external sequence so
that a Servo ON state will not occur due
to deposition in the Dynamic Brake
Resistor.
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.
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.