Chapter 3
3-13
System Design and Installation
3-2-2 Peripheral Device Connection Examples
■ Single-phase Input:
R7D-APA3L; R7D-APA5L; R7D-AP01L; R7D-AP02L; R7D-AP04L; R7D-APA3H; R7D-APA5H;
R7D-AP01H; R7D-AP02H; R7D-AP04H; and R7D-AP08H
Single-phase 100/115 V AC, 50/60 Hz: R7D-AP@@L
Single-phase 200/230 V AC, 50/60 Hz: R7D-AP@@H
Noise filter (See note 1.)
Main-circuit power supply
Main-circuit contactor (See note 1.)
Surge killer (See note 1.)
Servo error display
Class D ground
(Class 3 ground:
100 Ω or less)
Class D ground
(Class 3 ground:
100 Ω or less)
User
control
device
Control cable
DC Reactor
Note 1. Recommended product in
3-2-4 Wiring for Noise Resistance.
2. Recommended relay: MY Relay (24 V), by OMRON.
3. For 400-W and 750-W Servo Drivers, an R88A-RR22047S
External Regeneration Resistor may be connected. Connect if the
regenerative energy exceeds the individual Servo Driver's
regenerative capacity. Also, connect a thermal switch output so that
the power supply will be turned OFF when open.
4. If an External Regeneration Resistor is to be connected to a 750-W
Servo Driver, remove the short bar between B2 and B3.
5. When either the main-circuit power supply or the control circuit
power supply is OFF, the dynamic brake will operate.
RT
NFB
12
34
E
NF
OFF
X
ON
1MC X
1MC
PL
L1
L2
L1C
L2C
SMARTSTEP A-series Servo Driver
1MC
CN1
X
SMARTSTEP A-series Servomotor
W
V
U
B
E
M
CN2
Servomotor cable
24 V DC
XB
+ 1
+ 2
B1
B2
External Regeneration Resistor
(See note 3.)
B3
ALMCOM
ALM34
35
X
24 V DC
CN1
(See note 2.)
OGND
BKIR7
10
24 V DC
CN1
XB
(See note 4.)