5.10
Connection terminal type A-G-247NW for service
If necessary an external terminal can be connected. This can be e.g. necessary to adapt the pre-
setting during start-up.
The connection is made by a 4-wire cable at the terminals: A (D+), B (D-) and GND. E. g. telephone
cable type: J-Y (St) Y 2x2x0.6 (or similar), maximum cable length approx. 250 m.
The voltage supply of the terminal is made by the accumulators inserted there or the plug power
supply unit.
13.05.2013
v_a-g-247nw_at_ecblue.vsd
GND
A
(D+)
B
(D-)
A-G-247NW
ECblue
5.11
Digital input
“
D1
”
for enable (device ON / OFF)
Electronic ON / OFF control via
fl
oating contact at terminals
“
+10V
”
-
“
D1
”
(input resistance and
voltage range
Technical data).
Function factory setting for
“
D1
”
:
•
Device
“
ON
”
for closed contact.
•
Device
“
OFF
”
with opened contact.
Relay
“
K1
”
remains energized, connections 11 - 14 bridged.
Status Out with
fl
ash code:
|
1
|
(
Diagnostics / Faults).
Danger due to electric current
•
No disconnection (no potential isolation in accordance with VBG4
§
6) in remote control of the
device!
•
Never apply line voltage to the digital input!
5.12
Relay output
“
K1
”
for fault indication
An external fault indicator is available over the potential-free contact of the built-in relays (max. contact
rating
Technical data and connection diagram).
Function factory setting for
“
K1
”
:
•
For operation the relay is energized, connections
“
11
”
and
“
14
”
are bridged. For fault the relay is de-
energized (
Diagnostics / faults).
•
When switching off via enable (D1 = Digital In 1), the relay remains energized.
Information
After switching on the line voltage, an initialisation time of a maximum 7.5 seconds is required for the
device's electronics to be operational. Subsequently, a reliable status message will be possible. If no
malfunction is detected, the relay will be energised after the initialisation time.
Since both line voltage
fl
uctuations and ambient conditions affect the initialisation time, a different
delay might occur in individual cases.
Assembly instructions
ECblue
Electrical installation
L-BAL-F055D-GB 1634 Index 002
Part.-No.
21/51
