Endress+Hauser Digital Recorder eco-graph c Betriebsanleitung Seite 79

Digital Recorder
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4.2 Terminal assignment
Caution!
If high-energy transients occur when using long signal cables, we recommend
connecting a suitable overvoltage protection (e.g. E+H HAW 560/562).
Use screened signal lines for serial interfaces!
4.2.1 Power supply board
Supply voltage:
115 to 230 VAC (+10% / -15%) power unit, 48 to
63 Hz
L: phase L
N: zero conductor N
PE: earth/protective earth
Digital I/O:
Note!
Note on the input functions events, events+operating time, quantity from time, control
input:
Depending on the number of channels switched on, the signal must be present for the
following time at least:
Number of active channels:
1 to 10
11 to 20
21 to 30
As of 31 channels
Digital inputs:
91 Digital input 1
92 Digital input 2
93 Digital input 3
94 Digital input 4
24 to 48 V AC/DC (+10% / -15%) power unit, 0/48
to 63 Hz
L+: + supply voltage
(or alternating voltage)
L-: - supply voltage
(or alternating voltage)
PE: earth/protective earth
Time:
100 ms
250 ms
500 ms
1 s
Auxiliary power output for digital inputs, not
stabilised, max. 30 mA:
+ auxiliary voltage approx. + 24 V
- auxiliary voltage ground
Wiring
79