GM9907-L5
bulk scale controller user’s manual
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2. Installation
2.1 General principle
1
）
Make appropriate installation holes on the control box, ( size: 179
（
±1
）
mm ×113
（
±1
）
mm)
2
）
Install the GM9907-L5 into a control box
3
）
Remove the fixing plates on both sides of GM9907-L5, fix it with the fixing plates and
lock them with M3*10 screws.
2.2 Load Cell Connection
GM9907-L5
bulk scale controller can connect resistance strain bridge sensor.
When chose the six-wired load cells, must bridge the SN+ with EX+ and bridge the SN-
with EX-
EX+
:
Exc
EX-
:
Excitation-
SN+
:
Sense+
SN-
:
Sense-
SIG
+
:
SIG-
:
Signal-
2.3
I/O Function Connection
GM9907-L5
bulk scale controller controls 28 lines I/O (12 input and 16 output).
It uses optoelectronic isolation technology to transfer data. The I/O signal input is low level
effective, and the output is open-collector mode. The driving current can reach 500mA and
the full load current is up to 3A, and Terminal connection is shown as below:
