Omron CP1H-CPU - 05-2006, Operation Manual

Page: 428 / 669

397
Analog Output Units
Section 7-3
Connect the Analog Output Unit to the CPU Unit.
Internal Circuits
■
Wiring for Analog Outputs
Note (1) Separate wiring from power lines (AC power supply lines, high-voltage
lines, etc.)
(2) When there is noise in the power supply line, install a noise filter on the
input section and the power supply.
(3) When external power is supplied (when range codes are set), or when the
power is interrupted, there may be a pulse status analog output of up to
1 ms. If this status is a problem, take the following measures.
• Turn ON the power to the CP1H CPU Unit, check the operation status,
and then turn ON the power at the load.
• Turn OFF the power to the load and then turn OFF the power to the
CP1H CPU Unit.
1. Connecting the Analog Output Unit
CH
I OUT1 I OUT3
I OUT2 VOUT1
VOUT2
VOUT3 COM1
COM2
I OUT4
VOUT4 COM4
NC
AG
COM3
OUT
CPU Unit
CPM1A-DA041
Analog Output Unit
2. Wiring Analog Outputs
Analog output 1
Analog ground
NC
I OUT1
COM1 (
−
)
V OUT1
I OUT4
COM4 (
−
)
V OUT4
Analog output 4
Internal circuits
to
to
+
V OUT
COM
I OUT
−
+
V OUT
COM
I OUT
−
Analog
output
unit
Analog
device
with
voltage
input
Analog
output
unit
Analog
device
with
current
input