ABB Zenith ZTG 30 Operation, Maintenance And Installation Manual page 61

Automatic transfer switches
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5.5.3 LED indications and inputs/
outputs of Ekip Signalling 2K-_ -module
10
9
8
7
6
Fig. 5.10 Signals and inputs/outputs
of Ekip Signalling 2K-_ -module
1
Power LED, green. The possible
states are:
Off: power supply absent.
On fixed: power supply and
communication with the device
present (with a device with the
Alive LED option disabled).
On, with one flash per second
(synchronized with that of the
green LED on the device): power
supply and communication with
device present (with a device
with the Alive LED option
enabled)
On, with two quick flashes per
second (not synchronized with
those of the green LED on the
device): power supply present,
and communication with device
absent (for example: for Local
Bus disabled)
1
5
4
3
2
1)
2
Green
LED for signalling the physical
3)
state of the input H x12). The possible
states are:
Off: floating input
On fixed: input short-circuited on
H Cx
2)
3
Green
LED for signalling the physical
3)
state of the input H x2
states are:
Off: floating input
On fixed: input short-circuited on
H Cx
4
Green
LED for signalling contact K x1
3)
- K x2
. The possible states are:
2)
Off: contact open
On fixed: contact closed
5
Green
LED for signalling the state of
3)
the contact K x3 - K x4
states are:
Off: contact open
On fixed: contact closed
6
Input I x1
7
Conductive part of the inputs H x1
and H x2
2)
8
Input I x2
2)
9
Output contact pin O x1
10 Output contact pin O x2
1)
The absence of communication is signalled immedi-
ately by the power LED, unlike the outputs which
(apart from those programmed to be activated in
the case of disconnection) are deactivated if the
condition persists for at least 8 s
2)
With x = 1, 2, or 3
3)
The LED turns on and off according to the physical
state of the input, without taking any account of
how the Delay parameter is set.
For external wiring, cable cross section;
AWG 22-16 / 0.5-1.5 mm
61
. The possible
2)
. The possible
2)
2)
2)
.
2

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