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REGARD
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3900
Installation & commissioning
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+ signal - 0 V
The 4-20 mA output signals duplicate the assigned input signals but are electrically
isolated from them. The signal outputs are current sources that only work if they are
connected to a passive load.
Alarm lock
If the inhibit switch is moved to position 1, the output signals are frozen in their
current state.
If the inhibit switch is moved back to position 0, the output signals return to their
normal state.
Output module fault
In the event of a fault on the output module, all channels have an output signal of
1 mA (± 0.3 mA).
5
Installation & commissioning
5.1 General
instructions
The following general instructions should be observed for all installation, repair or
maintenance work on the control unit. Information about the transmitters and
sensors can also be found in the "Instructions for Use" of the remote sensor
transmitter.
WARNING
Risk of electric shock!
A non-interrupted power supply can result in personal injury and/or damage to the
control unit, the remote sensor transmitter or the cable.
►
Before installation, repair or maintenance work on the control unit, disconnect or
shut down all AC and DC power supplies to the control unit.
1. Disconnect or shut down all AC or DC power supplies to the control unit.
44707
Input signal (mA)
Reading on the display
(range 0–100)
Output channel signal
(mA)
Below 3.8
Under-range or mainte-
nance
As input signal
3.8 to 4.2
0
4.0
4.3
2
4.3
12
50
12
20
100
20
Over 20
Over range
As input signal
Input channel is inactive
Display blank
0
Содержание Regard 3900
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Страница 195: ..._ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
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Страница 202: ..._ REGARD 3900 _ Under range Over range Fault F Fault F...
Страница 203: ..._ REGARD 3900 _ Fault F Inhibit 1 0 1 0 3 Inhibit 0 20 RS 232...
Страница 257: ..._ REGARD 3900 257 _ 1 Dr ger 283 Dr ger Dr ger Dr ger Dr ger Dr ger 2 2 1 2 2...
Страница 267: ..._ REGARD 3900 267 _ 5 5 3 Power AC LED 24 V Sk2 AC on Power AC LED LED 44710 44729 44711...
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Страница 271: ..._ REGARD 3900 271 _ Dr ger REGARD 3910 2 m 5 7 2 5 mm2 0 5 mm2 44716 44717...
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Страница 275: ..._ REGARD 3900 275 _ 5 8 2 A1 A2 F1 RL1 RL8 PSU 44723...
Страница 276: ...276 _ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
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