Notes On Connecting Easy-E4-Ac - Eaton easyE4 Manual

1.10.3 Notes on connecting EASY-E4-AC-... devices
Special considerations for EASY-E4-AC-... expansions
Connect inputs I1–I8 on AC base devices and I1–I4 on expansion devices in accord-
ance with all applicable VDE, IEC, UL, and CSA safety rules using the same phase con-
ductor that delivers the supply voltage. Otherwise, the device will not detect the
switching level or may be destroyed by overvoltage.
During wiring, make sure to meet all cable protection requirements.
AC base devices
Input signal voltage range
Off signal: 0 to 40 V.
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On signal: 79 to 264 V
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Input current
I1 to I6: 0.5 mA/0.25 mA at 230 V/115 V.
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I7, I8: 6 mA/4 mA at 230 V/115 V.
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In addition, the following applies to I1–I6 on base devices:
With longer cables, connect a diode (e.g. 1N4007) with a minimum reverse voltage of 1
kV and a let-through current of 1 A in series to the device inputs. Ensure that the diode
is pointing to the input; otherwise the device will not be able to detect the 1 state.
Connecting inputs I7/I8
Neon lamps with a maximum residual current of 2 mA / 1 mA at 230 V/115 V can be con-
nected to I7 and I8.
Always use neon bulbs that are operated with a separate N connection.
WARNING
Do not use reed relay contacts on I7, I8. These may burn or melt due to
the high inrush current of I7, I8.
Two-wire proximity switches have a residual current in the 0 state. If this residual cur-
rent is too high, the device only detects the 1 state at the input.
With two-wire proximity switches or sensors with similar residual current con-
sumption use therefore the inputs I7 and I8.
Use an additional input circuit if several inputs are required with a higher input current.
AC expansions
Connect the inputs, for example, to pushbutton actuators, switches or relay/contactor
contacts.
easyE4 10/19 MN050009 EN www.eaton.com
1. easyE4 control relays description
1.10 Engineering
41