Filter
Top Products
3 - 22
3. SIGNALS AND WIRING
Connector pin No.
Control
mode
Signal Symbol
7kW or
less
11kW or
more
Functions/Applications
I/O
division
PST
Encoder Z-phase
pulse
(Open collector)
OP CN1A
14
CN1A
14
Outputs the zero-point signal of the encoder. One pulse is
output per servo motor revolution. OP turns on when the
zero-point position is reached. (Negative logic)
The minimum pulse width is about 400
s. For home
position return using this pulse, set the creep speed to
100r/min. or less.
DO-2
Encoder A-phase
Pulse
(Differential line
driver)
LA
LAR
CN1A
6
CN1A
16
CN1A
6
CN1A
16
Encoder B-phase
pulse
(Differential line
driver)
LB
LBR
CN1A
7
CN1A
17
CN1A
7
CN1A
17
Outputs pulses per servo motor revolution set in
parameter No. 27 in the differential line driver system.
In CCW rotation of the servo motor, the encoder B-phase
pulse lags the encoder A-phase pulse by a phase angle of
/2.
The relationships between rotation direction and phase
difference of the A
B-phase pulses can be changed using
parameter No. 54.
DO-2
Encoder Z-phase
pulse
(Differential line
driver)
LZ
LZR
CN1A
5
CN1A
15
CN1A
5
CN1A
15
The same signal as OP is output in the differential line
driver system.
DO-2
Analog monitor 1 MO1 CN3
4
CN4
1
Used to output the data set in parameter No.17 to across
MO1-LG in terms of voltage. Resolution 10 bits
Analog
output
Analog monitor 2 MO2 CN3
14
CN4
2
Used to output the data set in parameter No.17 to across
MO2-LG in terms of voltage. Resolution 10 bits
Analog
output
(3) Communication
POINT
Refer to chapter 14 for the communication function.
Control
mode
Signal Symbol
Connector
pin No.
Functions/Applications
I/O
division
PST
RS-422 I/F SDP
SDN
RDP
RDN
CN3
9
CN3
19
CN3
5
CN3
15
RS-422 and RS-232C functions cannot be used together.
Choose either one in parameter No. 16.
RS-422
termination
TRE CN3
10
Termination resistor connection terminal of RS-422 interface.
When the servo amplifier is the termination axis, connect this
terminal to RDN (CN3-15).
RS-232C I/F RXD
TXD
CN3
2
CN3
12
RS-422 and RS-232C functions cannot be used together.
Choose either one in parameter No. 16.