3.5 Digital Input (only WIC1‑1… / WIC1‑2… / WIC1‑3…)
WIC1_Z18
X4
230 VAC
115 VAC
digital input DI2
Type of Input:
Do Not Use
not connected
COM
Ext. Trip Or DI
X4:
Tightening Torque: 0.5 Nm (4.4 lb⋅in)
Fig. 26: Terminal block X4 for device variants WIC1‑1… / WIC1‑2… / WIC1‑3…
The “Inputs” terminal block (see also ╚═▷ “3.1 Overview of Elements and Connectors”)
always features:
• a “COM” common terminal, that serves as the common potential for all other inputs.•
Moreover, this terminal block can feature (depending on the order options) a digital input
based on 115 VAC or 230 VAC input signals. (See ╚═▷ “9.1.9 Remote (External) Trip Input /
Digital Input (WIC1‑1, WIC1‑2, WIC1‑3)” for details.)
This digital input is always referred to as DI2, when it comes to settings or displaying states.
(Note that nonetheless, these device variants do not have a DI1.)
• For device variants WIC1-xxxxxF, this input has a xed function as an external trip•
signal.
An external trip signal triggers the protection function »ExP«, see ╚═▷ “4.11 ExP –
External Protection”. Depending on its conguration, »ExP« issues either an alarm
message or trips the circuit breaker (via the impulse output, ╚═▷ “Impulse Output for
a Trip Coil”).
• For device variants WIC1-xxxxxC, this input is congurable.•
If the input is used for an external trip together with a cold restart of the WIC1 the resulting
tripping time depends on the input voltage. This is due to the recharging time of the
capacitors for the trip signal. However, as long as the voltage is within the specied range,
the tripping time is ≤ 0.5 s. (See also ╚═▷ “9.2.1.8 External Protection”.)
CAUTION!
It is not allowed to connect any continuous voltage to the 115 VAC or 230 VAC input!
Any continuous voltage can destroy the internal signal transformer.
83WIC1WIC1-1.0-EN-MAN
3 Hardware
3.5 Digital Input (only WIC1‑1… / WIC1‑2… / WIC1‑3…)
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