SmartStep servo drive
155
Control I/O (CN1) specifications
Encoder connector (CN2) specifications
Communications connector (CN3) specifications
Monitor output (CN4) specifications
Pin
Symbol
Name
Function
1
+PULS/CW/A
Feed pulses, reverse pulses,
or 90
°
phase difference pulses (A phase)
Line-driver input: 7 mA at 3 V
Open-collector input
Input impedance: 200
Ω
Maximum response frequency: 250 kpps
Position control is performed based on the pulses that have been input.
2
−
PULS/CW/A
3
+SIGN/CCW/B
Direction signal, forward pulses,
or 90
°
phase difference pulses (B phase)
4
−
SIGN/CCW/B
5
+ECRST
Deviation counter reset
Line-driver input: 7 mA at 3 V
Open-collector input: 16 mA at 5 V
Input impedance: 200
Ω
ON: resets deviation counter.
6
−
ECRST
7
BKIR
Brake interlock output
Outputs holding brake timing signals.
8
INP
Positioning completed output
ON when the position error is within the positioning completed range.
10
OGND
Output ground common
Ground common for output signals (pins 7 and 8).
13
+24V
+24 VDC power input for control
Power supply input (+24 VDC) for pins 14 and 18.
14
RUN
RUN command input
ON: servo ON (starts power to servo motor)
18
RESET
Alarm reset input
ON: servo alarm status is reset.
19
GND
RS-422A ground
Ground for RS-422A
20
RXD+
RS-422A reception data
Interface for RS-422A data transfers
21
RXD
−
22
TXD+
RS-422A transmission data
23
TXD
−
24
RT
Termination resistance terminal
Connect to RXD- (pin 21) in the unit at the end of the line.
32
Z
Encoder phase-Z open-collector output
Output goes ON when the encoder’s phase-Z signal (1 pulse/revolution)
is detected.
Open-collector output: 20 mA max. at 30 VDC
33
ZCOM
34
ALM
Alarm output
Output goes OFF when alarm is detected.
Open-collector output: 50 mA max. at 30 VDC
35
ALMCOM
Shell
FG
Cable shield ground
Ground for cable's shield wire.
Pin
Symbol
Name
Function
1, 2, 3
E0V
Encoder power supply GND
Power supply output for encoder
4, 5, 6
E5V
Encoder power 5 V
8
S+
E phase-S input
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220
Ω
±
5%)
9
S
−
Encoder
−
phase-S input
10
A+
E phase-A input
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220
Ω
±
5%)
11
A
−
Encoder
−
phase-A input
12
B+
E phase-B input
Line driver input (conforms to EIA-RS422A)
(Input impedance: 220
Ω
±
5%)
13
B
−
Encoder
−
phase-B input
Shell
FG
Cable shield ground
Ground for cable's shield wire.
Pin
Symbol
Name
Function
1
/TXD
Transmission data
Transmission data: RS-232C output
Reception data:
RS-232C input
2
/RXD
Reception data
3
PRMU
Unit switching
Switching terminal for a parameter unit
7
+5V
+5 V output
This is the +5 V power supply output to the parameter unit.
8
GND
Ground
Shell
FG
Cable shield ground
Ground for cable's shield wire.
Pin
Symbol
Name
Function
1
NM
Speed monitor
Speed monitor output: 1 V per 1,000 r/min
2
AM
Current monitor
Current monitor: 1 V / rated torque
3
GND
Ground
Grounds for monitor output
4
GND
Ground
Y203-EN2-02-Katalog.book Seite 155 Mittwoch, 24. Mai 2006 2:22 14
