A&D Weighing AD-4406 - Manual (Page 58)

Page 56 AD-4406 Weighing Indicator
17. 17. 17. 17.
Current Loop Output (OP-08)
Current Loop Output (OP-08) Current Loop Output (OP-08) Current Loop Output (OP-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 “13. RS-232C Interface (OP-04, OP-05, OP-08)”.
The control input can control the indicator from an external terminal just like the front
panel key operation.
Set the external control functions 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 50VDC
Maximum current 100 mA DC
Maximum resistance 8
W
Pin connections (DIN 8 pin 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 (an accessory)
Circuit
Current loop output
HI
OK
LO
COM (out)
K
EXT3
ጚ
+7 ጚ9V
680 ǡ
዇
COM
(in)
ጚ
ዉ DIN connector
of OP-08
Control input Relay output
17. Current Loop Output (OP-08)