
Memo-Graph S 4 Wiring
Endress+Hauser 15
"
Caution!
Depending on the order, slots 1 or 2 can be fitted with different boards (with analogue and/or digital
inputs/outputs). Please carry out connection in accordance with terminal diagram.
4.2 Terminal diagram
"
Caution!
If high-energy transients occur when using long signal cables, we recommend
connecting a suitable overvoltage protection (e.g. E+H HAW 561 (51003570) and HAW 560
(51003571)).
Use screened signal cables for:
• Resistance thermometers, thermal elements and measuring ranges <1 V.
• Serial interfaces.
4.2.1 Power supply board (slot 3)
Standard relay output* (changeover contact) on power supply board:
Optional relay outputs* on power supply board:
Supply voltage 115 to 230 V
AC
power unit,
50/60 Hz:
Supply voltage 24 V
AC/DC
power unit, 0/50/60 Hz:
L Phase L L+ + supply voltage (or alternating voltage)
N Zero conductor N L- - supply voltage (or alternating voltage)
PE Earth/protective earth PE Earth/protective earth
41 Relay 1 changeover contact
42 Relay 1 NC contact
44 Relay 1 NO contact
53 Relay 2 contact 1
54 Relay 2 contact 2
63 Relay 3 contact 1
64 Relay 3 contact 2
73 Relay 4 contact 1
74 Relay 4 contact 2
83 Relay 5 contact 1
84 Relay 5 contact 2
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