Serial type 800 A
External Wiring Diagram
/T-REF
SG
(E)
L2(S)
L3(T)
L1(R)
RB1 RB2
-DC
+DC
+DC
-DC
CN10
TH1-1
(3)
MC
MC
MC
W2
V2
U2
V2
W2
U2
R
S
T
SH
SH
(5)
EN1
W1
V1
U1
V1
W1
U1
(E)
+24 V
0 V
+24 V
0 V
TH1-2
DB1
DB2
SH SH
CN10
4
5
7
8
SH
(1)
SG
SG
120
Ω
TXD
RXD
4
5
7
8
4
5
7
8
SH
4
5
7
8
120
Ω
CONT1+
CONT1-
CONT2-
CONT2+
SH
3
4
5
6
16
OUT1+
OUT1-
17
CN2
OUT2-
OUT2+
19
18
CONT4-
10
CONT3-
CONT4+
9
8
CONT3+
7
CONT6-
15
CONT6+
CONT5-
14
12
CONT5+
11
20
21
22
23
24
SG
13
26
25
CONT7+
CONT7-
24 VDC
(10)
1
2
(9)
RXD+
RXD-
TXD+
TXD-
6
5
8
3
4
EDM+
HWGOFF1-
HWGOFF2-
SH
24 VDC
(10)
24 VDC
CN4
EDM-
(11)
(10)
(16)
7
(9)
2
1
CN3
1
2
CN0 or
CN1
D1(+)
D0(-)
Reserved
(Do not
connect)
Reserved
(Do not connect)
For maintenance
Serial interface
(7)
(7)
(2)
(13)
(15)
(14)
Motor thermostat or
motor fan thermostat
For dynamic braking
DB resistor thermostat,
motor thermostat, or motor fan thermostat
General-
purpose
output
General-
purpose
input
Lithium
battery 3.6 VDC
Encoder
battery
input
Servo motor
Encoder
AC power 3ø
380 to 480 V
50/60 Hz
User unit
User unit
External regenerative
resistor
24 VDC
power supply
System error
Emergency
stop
Amplifier unit
Start ready
ON
Start ready
OFF
TB
TB
TB
TB
TB
TB
TB
TB
TB
Power
supply
unit
Thermal
Fan
Wire jumper
To CN0 or CN1
of the ampli
fi
er
at the end
CN0 or
CN1
To CN0 or CN1
of the next
ampli
fi
er
Shielding
Shielding
Shielding
Shielding
For
Safe Torque Off
models
only
Connector
No.
Name
Housing, plug, shell
CNA
Control circuit power
supply input
connector
MSTBT2.5/2-STF-5.08
EN1/EN2
Encoder connector
54599-1016
CN8
External thermal
connector
FMC0,5/4-ST-2.54
CNB
Dynamic brake
operation connector
MSTBT2.5/3-STF-5.08
CN2
General-purpose I/O
connector
1971153-2
CN4
STO connector
For short-circuiting: 1971153-2
For wiring: 2013595-3
(1) [
] The part indicated by the figure on the left should be wired with shielded
twisted pair (STP) cables.
(2) An external regenerative resistor should be connected between the RB1 and RB2
terminals.
(3) If monitoring thermostats by yourself, ensure that these terminals are short-circuited.
(4) Motor side connections vary depending on motor specifications. Perform connections
according to the specifications.
(5) Refer to the encoder connection diagram for the wiring of encoder connectors.
(6) R, S, T, r, t, P, N, RB1, RB2, U, V, and W are high-voltage circuits. All other signal lines
are low-voltage circuits. When wiring, provide sufficient clearance between high-
voltage and low-voltage circuits.
(7) Ground with a wire of 5.5 mm
2
or larger size.
(8) DB1 and DB2 are dynamic braking timing outputs. Necessary items, an
electromagnetic contactor, resistor, power supply, and cables, are to be prepared by
the customer. For the electromagnetic contactor, prepare one that works with DC
power. Relay contact rating: 30 VDC, 2 A (cosø = 0.4, L/R = 7 ms)
(9) Do not connect anything to the CN4-1, CN4-2, CN2-20, or CN2-21 pins.
(10) An external power supply is to be prepared by the customer.
(11) CN4 is a connector for the Safe Torque Off function. Turning Servo ON (motor in
operation) requires to connect a safety device to CN4 and get STO enabled. When not
using STO, be sure to insert the short-circuiting STO connector (Mfr. part no.: 1971153-
2) to CN4.
(12) Consult us when conducting a withstand voltage test.
(13) For the wiring of unit-to-unit cables, refer to the wiring diagram in the Instruction
Manual (M0012312).
(14) Use of a UL or IEC/EN compliant leakage circuit breaker is recommended.
(15) For a 24 VDC power supply, use a SELV (safety extra low voltage) power supply with
reinforced insulation on I/O terminals.
(16) No wiring is required when using the battery-less absolute encoder.
76
Servo Amplifiers
R 3E Model Built-in Positioning Function type
