Omron SMARTSTEP SERVO DRIVE System Configuration Manual page 3

Control I/O (CN1) specifications
Pin Symbol
1 +PULS/CW/A
2 PULS/CW/A
3 +SIGN/CCW/B
4 SIGN/CCW/B
5 +ECRST
6 ECRST
7 BKIR
8 INP
10 OGND
13 +24V
14 RUN
18 RESET
19 GND
20 RXD+
21 RXD
22 TXD+
23 TXD
24 RT
32 Z
33 ZCOM
34 ALM
35 ALMCOM
Shell FG
Encoder connector (CN2) specifications
Pin Symbol
1, 2, 3 E0V
4, 5, 6 E5V
8 S+
9 S
10 A+
11 A
12 B+
13 B
Shell FG
Communications connector (CN3) specifications
Pin Symbol
1 /TXD
2 /RXD
3 PRMU
7 +5V
8 GND
Shell FG
Monitor output (CN4) specifications
Pin Symbol
1 NM
2 AM
3 GND
4 GND
SmartStep servo drive
Name
Feed pulses, reverse pulses,
or 90 phase difference pulses (A phase)
Direction signal, forward pulses,
or 90 phase difference pulses (B phase)
Deviation counter reset
Brake interlock output
Positioning completed output
Output ground common
+24 VDC power input for control
RUN command input
Alarm reset input
RS-422A ground
RS-422A reception data
RS-422A transmission data
Termination resistance terminal
Encoder phase-Z open-collector output
Alarm output
Cable shield ground
Name
Encoder power supply GND
Encoder power supply +5 V
Encoder + phase-S input
Encoder phase-S input
Encoder + phase-A input
Encoder phase-A input
Encoder + phase-B input
Encoder phase-B input
Cable shield ground
Name
Transmission data
Reception data
Unit switching
+5 V output
Ground
Cable shield ground
Name
Speed monitor
Current monitor
Ground
Ground
Function
Line-driver input: 7 mA at 3 V
Open-collector input
Input impedance: 200
Maximum response frequency: 250 kpps
Position control is performed based on the pulses that have been input.
Line-driver input: 7 mA at 3 V
Open-collector input: 16 mA at 5 V
Input impedance: 200
ON: resets deviation counter.
Outputs holding brake timing signals.
ON when the position error is within the positioning completed range.
Ground common for output signals (pins 7 and 8).
Power supply input (+24 VDC) for pins 14 and 18.
ON: servo ON (starts power to servo motor)
ON: servo alarm status is reset.
Ground for RS-422A
Interface for RS-422A data transfers
Connect to RXD- (pin 21) in the unit at the end of the line.
Output goes ON when the encoder's phase-Z signal (1 pulse/revolution)
is detected.
Open-collector output: 20 mA max. at 30 VDC
Output goes OFF when alarm is detected.
Open-collector output: 50 mA max. at 30 VDC
Ground for cable's shield wire.
Function
Power supply output for encoder
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220 5%)
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220 5%)
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220 5%)
Ground for cable's shield wire.
Function
Transmission data: RS-232C output
Reception data: RS-232C input
Switching terminal for a parameter unit
This is the +5 V power supply output to the parameter unit.
Ground for cable's shield wire.
Function
Speed monitor output: 1 V per 1,000 r/min
Current monitor: 1 V / rated torque
Grounds for monitor output
155