SRT1-ID
j
P/OD
j
P
SRT1-ID
j
P/OD
j
P
79
Precautions
Refer to the
CompoBus/S Operation Manual (W266) before using
the Unit.
Refer to page 80 for precautions common to all SRT1 Terminals.
Correct Use
Noise Protection Circuit
Add the following protection circuit if noise is generated from the
power supply, input section, or output section.
Power Supply Noise Protection Circuit
L: Coil for the common mode
Install the coil near the SRT1.
50 V
100
µ
F
50 V
0.1
µ
F
BS
)
L
V
BS
*
Input Section Noise Protection Circuit
C:
0.1
µ
F min.
R:
Resistor for limiting current to PC
PC: Photocoupler
Input device
0 to 15
V
R
G
PC
C
Output Section Noise Protection Circuit
V
1
and V
2
:
Power supply.
R:
Resistor for limiting current to PC
PC: Photocoupler
Load
0 to 15
G
V
2
PC
R
V
1
5-V Output Terminals
The 5-V Output Terminals have positive power supplies (maximum
output current of 20 mA) for the ERR and COMM LED. Use them as
shown below. Recommended LED colors are red for ERR and yel-
low for COMM.
Wiring Method
R:
LED current limiting resistor
LED1: LED for COMM
LED2: LED for ERR
The maximum current for the LED1 and 2 is 10 mA.
LED1
R
R
5 VOUT
COMM
ERR
LED2
