Datasheet

SmartStep 2 servo drive 123
AC Servo systems
*1 B3-B2 are short-circuited. If the internal regenerative resistor is insufficient, remove the wire between B2 and B3 and connect an external regen-
erative resistor between B1 and B2.
*2 Use only when an absolute encoder. If a backup battery is connected, an encoder cable with a battery is not required.
*3 The default values are ZSP (zero-speed detection) for OUTM1 and T-LIMIT (at torque limit) for OUTM2.
SMARTSTEP2
Servo drive
(750W)
Encoder
Servo motor
B3
B2
U
V
W
B1
L1
L3
L1C
L2C
Noise filter
Single-Phase
200 to 230 VAC
Contactor
L1
L2
L3
N
Thermal switch
CN1
*1
3 k
110 
43 k
3k 
220 
5
2
6
Servo ON
44
45
+CW
-CW
+CCW
-CCW
+CWLD
-CWLD
Reverse pulse
Forward pulse
BKIR
Alarm output
BKIRCOM
11
10
READY
READYCOM
ALMCOM
35
34
/ALM37
36
INPCOM
INP39
38
31RESET
30ECRST
28GESEL
27
GSEL
26
DFSEL
29RUN
7+24 VIN
Alarm reset
Deviation counter reset
Electronic gear
switching
Gain switching
Vibration filter
switching
12 to 24 VDC
External power supply 12 to 24 VDC
Maximum
service voltage: 30 VDC
Maximum
output current: 50 mADC
Reverse pulse
46
47
110 
43 k
33IPG
Pulse prohibition
500 kpps max.
2 Mpps max.
8NOT
Reverse run
prohibited
9POT
Forward run
prohibited
OUTM1
General-purpose output 1
*3
12
50
4.7 k

4.7 k

4.7 k
43 k
3 k
+CCWLD
-CCWLD
Forward pulse
+A21
-A22
+B49
-B48
+Z23
-Z24
Line-driver output corresponding
with the EIA RS-422A communications
method (load resistance 120 W min.)
220 
3
1
4
43 k
3k 
4.7 k

4.7 k

4.7 k

4.7 k
4.7 k

4.7 k
+24 VCW
2.2 k
+24 VCCW
2.2 k
20
100
4.7 k
1 µF
SEN
SENGND
13
Sensor ON
BAT
BATGND
Backup battery
*2
(3.6 V)
42
43
Position reference
Shell
CNB
CNA
CN2
Servo ready output
Positioning completed output
COM-
OUTM2
40
41
Brake release signal output
19
25 ZCOM
Z
Phase-Z output
(output collector output)
Encoder phase-A output
Encoder phase-B output
Encoder phase-Z output
General-purpose output 2
*3