INST.No.INE-555-P5
-19-
◆
IR-
ZZRC□□□
Cable marker
Signals
Remarks
POWER+
Powers supply 24V DC +
Allowable voltage range 22
~
28V DC
POWER-
Powers supply 24V DC -
Current output 4 to 20mA DC +
SIGNAL-
Current output 4 to 20mA DC -
RS485 SA
Serial communication RS485 SA
RS485 SB
Serial communication RS485 SB
DO1+
Contact output 1 +
Open collector
DO COM
Contact output 1 -
Option (Do not use it)
OPTION -
DO2 +
EARTH
Ground wire
Provide a low impedance earth ground
(lower than 100Ω) connection.
◆
IR-
ZCRT□□□
Cable marker
Signals
Remarks
POWER +
Powers supply 24V DC +
Allowable voltage range 22
~
28V DC
POWER -
Powers supply 24V DC -
Current output 4 to 20mA DC +
SIGNAL -
Current output 4 to 20mA DC -
Serial communication RS485 SA
OPTION -
Serial communication RS485 SB
EARTH
Ground wire
Provide a low impedance earth ground
(lower than 100Ω) connection.
8.6 Connection example of the contact output
A use example of the contact output is shown below.
The output method is an open collector, and please be careful because it is not the no voltage point of
contact.
In addition, the connected apparatus (alarms), please be careful not to be beyond the specifications of the
open collector. It causes the trouble.
DO1+
DO2+
DCOM
Apparatus
+
-
Power supply
+
-