2 Installation
2.5 Connecting the inputs
32 Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
• Input signal voltage range
• Off signal: 0 to 40 V.
• On signal: 79 to 264 V
• Input current
• R1…R12: 0.5 mA/0.25 mA at 230 V/115 V.
Length of input cables
Severe interference can cause a signal 1 on the inputs without a proper
signal being applied. Observe therefore the following maximum cable
lengths:
• I1 to I6, I9 to I12: 100 m with input debounce switched on, 60 m without
additional circuit with input debounce switched off.
• I7, I8: 100 m without additional circuit.
• R1 to R12: 40 m without additional circuit
The following also applies to the expansion units:
With longer cables connect a diode (e.g. 1N4007) with a minimum reverse
voltage of 1 kV and a forward current of 1 A in series to the device input.
Ensure that the diode is pointing to the input as shown in the circuit diagram;
otherwise the device will not be able to detect the 1 state.
Figure 23:Connecting inputs on the EASY618-AC-RE AC expansion unit via diodes
Connecting inputs I7/I8 on the AC 800 standard
Neon lamps with a maximum residual current of 2 mA/1 mA at 230 V/115 V
can be connected to I7 and I8.
￫
Always use neon lamps that are operated with a separate N
connection.
WARNING
Do not use any Reed contacts at the I7 and I8 inputs. These
may burn or melt due to the high inrush current of I7, I8.
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