Wiring
3.4.3 I/O Signal Names and Functions
3 -22
Signal Name
Refer-
ence
Function
Pin No.
Torque
T-REF
9 (10)
Torque reference input:
±
1 to
±
10 V/rated motor torque (Input gain can be modi-
fied using a parameter.)
4.2.7
Position
Reference
PULS
/PULS
SIGN
/SIGN
7
8
11
12
Corresponds to reference pulse input
Line-driver
Open-collector
Input mode
S
Code + pulse string
S
CCW/CW pulse
S
Two-phase pulse (90
°
phase dif-
ferential)
4.2.2
CLR
/CLR
15
14
Error counter clear: Clears the error counter during position control.
4.2.2
PL1
PL2
PL3
3
13
18
+12-V pull-up power supply when PULS, SIGN and CLR reference signals are
open-collector outputs (+12-V power supply is built into the Servopack).
4.2.2
Note 1.
The functions allocated to /S-ON, /P-CON. P-OT, N-OT, /ALM-RST, /P-CL, and /N-CL input signals can
be changed via user constants. (See
4.3.3 Input Circuit Signal Allocation
.)
2.
Pin numbers in parenthesis () indicate signal grounds.
3.
The voltage input range for speed and torque references is a maximum of
±
12 V.
J
J
Output Signals
Signal Name
Pin No.
Function
Refer-
ence
Common ALM+
ALM--
31
32
Servo alarm: Turns OFF when an error is detected.
4.5.1
/TGON+
/TGON--
27
28
Detection during Servomotor rotation: Detects whether the Servomotor is rotating
at a speed higher than the motor speed setting. Motor speed detection can be set
via user constant.
4.5.5
/S-RDY
+
/S-RDY
--
29
30
Servo ready: ON if there is no servo alarm when the control/main circuit power
supply is turned ON.
4.5.6
PAO
/PAO
PBO
/PBO
PCO
/PCO
33 (1)
34
35
36
19
20
A phase signal
B phase signal
C phase signal
Converted two-phase pulse (A and B phase) encoder output
signal and origin pulse (C phase) signal: RS-422 or the
equivalent
4.2.3
PSO
/PSO
48
49
S phase signal
With an absolute encoder: Outputs serial data corresponding
to the number of revolutions (RS-422 or equivalent)
4.2.3
ALO1
ALO2
ALO3
37
38
39 (1)
Alarm code output: Outputs 3-bit alarm codes.
Open-collector: 30 V and 20 mA rating maximum
4.5.1
FG
Shell
Connected to frame ground if the shield wire of the I/O signal cable is connected
to the connector shell.
3
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