1
V1.05
VG-6777 Digital Isolate Interface
Installation and Operation Manual V1.05
Features
Easy Installation
Loop power supply
Both side
isolate control
Designed to comply with EN 54-17
Description
VG-6777 Digital Isolate Interface monitors the
short circuit fault at the loop detection zone ,It
has both side isolate function ,if detects the
short circuit on loop it will isolate that side to
ensure loop communication signal will not be affected or interrupt by short-circuit fault. When the short circuit fault is
removed, the isolate interface will automatically restore loop.
Technical data
Operating Voltage:
18-28V(Modulated-pulse)
Standby Current:
≤
1mA
Isolate holding current
≤
10mA
Action condition
Isolate input/output side short circuit or loop voltage
≤
7.5V
Wiring
Two-wire
（
non-polarized
）
Temperature range:
-10
℃～
50
℃
Humidity:
≤
95%RH,
（
40
±
2
℃）
No condensation
Isolate Indication:
Active A or Active B
LED illuminates steadily.
IP Rating:
32
Installation Base
VG-6618
Note:
The VG-6777 Isolate interface is working with V-GREAT Digital Protocol
Installation
Dimensions
：
Showing on Fig.1
Fig.1
