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9) LED Functions
Upon power up, the LEDs indicate the status of the unit. There are five LEDs on the G2-2 A-B 1771 Remote
I/O node; one for Communication Status, two for internal fuse integrity, and two for Aux. Power status.
LED Name
COMM STATUS
(Communication
Status)
FUSE 1
+24V VLV/OUT
FUSE 2
+24V NODE/IN
All manuals and user guides at all-guides.com
G2-2 Series A-B 1771 Remote I/O
Color
Status
Off
OFF
ON
Green
FLASHING
OFF
Red
ON
OFF
Green
ON
OFF
Red
ON
OFF
Green
ON
3835050 TDG22ABQS3-0
Subject to change without notice
www.numatics.com/fieldbus
Quick Start Manual
Description
No communication established with scanner.
Communication established; Normal operation.
Rack size mismatch; Processor in Program Mode or loss of
communication occurred when processor lockout is ON.
F1
Internal fuse
is OK (valid only when power is applied to
+24V
pin on Aux. Power connector).
VLV / OUT
Internal fuse
F1
is open; No power is internally provided to valves or
outputs. Communication NOT affected.
+24V
No DC Power present at
connector.
DC Power applied to
+24V
VLV / OUT
Internal fuse
F2
is OK (valid only when power is applied to
+24V
pin on Aux. Power connector.
NODE / IN
F2
Internal fuse
is open; No power is internally provided to node
electronics or inputs. Communication Node will not function.
No DC Power present at
+24V
connector.
+24V
DC Power applied to
NODE / IN
1/07
pin on Aux. Power
VLV / OUT
pin on Aux. Power Connector.
pin on Aux. Power
NODE / IN
pin on Aux. Power connector.
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