User Manual

Model GD-K77D
Operator’s Manual Installation • 16
Wiring
WARNING: When hooking up wires to the Model GD-K77D at the installation site,
be very careful not to damage the internal electronics of the Model
GD-K77D by a static electric discharge or by improper grounding.
Place the Model GD-K77D detector unit on its side. A vertical placement may cause the
unit to fall over, which may damage the unit.
For the power and signal cables, do not lay them out next to other power cables that carry
an electrica l load .
4-20mA Specifications
3-wire 4-20mA
• 18-gauge wire, 3-wire shielded cable recommended.
• For most applications, see RKI wiring chart for more information.
Figure 6: Wiring to RM-570 W/EC-583 Module
Power
Source
8 9101112
Alarm Device
67
Alarm Device
NO
TR
NO
ALM 1
ALM 2
NO
6
21345
Alarm Device
G
D-K77D Terminal Strip
Power
So urce
Power
Source
Not
Used
RM-570 Controller
w/EC-583 Module
Detector Terminals
Fact ory Installed
Ju mper
5
3
4