A&D Weighing Indicator AD-4405 Instruction Manual - page 72
Page
70
AD-4405 Weighing Indicator
20.
20.
20.
20. Current Loop Output (OP
Current Loop Output (OP
Current Loop Output (OP
Current Loop Output (OP-
-
-
-08)
08)
08)
08)
Replacing the RS-232C interface with this option, current loop output, 3-relay outputs
and 1-control input can be used with the RS-232C interface of this option.
RS-232C functions and pin connections are the same as the RS-232C interface
described in “16. RS-232C Interface”.
The control input can control the indicator from an external terminal just like the front
panel key operations.
Set the external control function at f15 of the F-Functions.
When connecting the function pin and the common pin, the indicator makes the action.
Keep a signal width of more than 100 ms for the On-time and Off-time.
ON(Make)
More than 100 ms More than 100 ms
OFF(Break)
The relays output the result of comparison.
Solid-state-relay
Maximum voltage
DC50V
Maximum current
DC100mA
Maximum resistance 8
9
Pin connections (DIN 8pin connector)
Function
Pin No. Signal name
Direction
Description
1
HI
Output
Relay output HI
6
OK
Output
Relay output OK
4
LO
Output
Relay output LO
Relay
output
8 COM(out) -
Relay
common
terminal
3
CL1
Output
Current loop output 1
Current
loop
5
CL2
Output
Current loop output 2
7
EXT3
Input
Control input 3 (f15)
Control
input
2
COM(in)
-
Control input common
Adaptable connector
JA-TCP0586 (of accessory)
Circuits
Circuits
Circuits
Circuits
Current loop output
HI
OK
LO
COM(out)
EXT3
+7 to 9V
680
9
COM
(in)
DIN connector
of OP-08
Control input Relay output
20. Current Loop Output (OP-08)