Connection Procedures - GRAPHTEC GL840 Quick Start Manual

1.800.561.8187

Connection Procedures

Connect the AC Adapter
Connect the DC output of the AC adapter to the
connector marked as "DC LINE" on the GL840.
Connect to the Analog Input Terminals
CH1...................................................CH20.
+
-
b
CAUTION: Connect wires to the specified channel, the channel number is shown on top of the terminal block.
Connect the External Input/Output Cable
* The B-513 input/output cable for GL (sold separately) is required for connecting input/output signals.
(For logic/pulse input, alarm output, trigger input and external sampling pulse input)
3
www.
Connect the Grounding Cable
Use a flathead screwdriver to push the button above
the GND terminal while connecting the ground
cable to the GL840. Connect the other end of the
cable to ground.
Voltage input
+
DC voltage input
-
Resistance temperature detector input
A
+
B
-
b
b
Shunt resister
Ex: Current signal is converted to voltage using a
Lead wire resistance should be
shunt register.
10 or less per wire, three
For 4 to 20mA current input, install the 250ohms
wires need to be same length.
(0.1%)shunt resister to convert the signal to 1 to
5V.Note: Graphtec offers B-551 250ohm.
< Signal assignment >
Orange with red dotted line
Orange with black dotted line : 2
Grey with red dotted line
Grey with black dotted line
White with red dotted line
White with black dotted line
Yellow with red dotted line
Yellow with black dotted line : 4
Pink with red dotted line
Pink with black dotted line
Shielded
.com
Thermocouple input
+
-
Compensation wire is
used if it is required.
Current input
+
-
: 1
Logic/pulse
: 3
input
: 4
: 1
: 2
Alarm output
: 3
: Trigger input/
external sampling input
GND
information@itm.com