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REGARD
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3900
Installation & commissioning
_
+ 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
Summary of Contents for Regard 3900
Page 1: ...REGARD 3900 Instructions for use de en es nl ru tr zh...
Page 3: ...QVWUXFWLRQV IRU XVH _ REGARD 3900 This page has been left blank intentionally...
Page 171: ..._ REGARD 3900 _ REGARD 3900 QKLELW 5 5 p 5 5 p...
Page 172: ..._ REGARD 3900 _ 2YHUUDQJH 8QGHUUDQJH 0DLQWHQDQFH QKLELW 3RO WURQ 5 5 p 7H...
Page 173: ..._ REGARD 3900 _ 1 Dr ger 204 Dr ger Dr ger Dr ger Dr ger Dr ger...
Page 177: ..._ REGARD 3900 _ 4 2 Inhibit 4 2 1 Inhibit Inhibit Inhibit Inhibit 1 0 0 1 Inhibit 30...
Page 178: ..._ REGARD 3900 _ 4 2 2 4 3 A1 A2 A3 F1 F2 F1 F2 F2 F1 1 A1 1 A2 2 Ch1 Ch4 44703 44704...
Page 183: ..._ REGARD 3900 _ 5 2 1 REGARD 3900 3920 50 Dr ger 50 B 1 IP65 M6 A C 2 B 5 44708 A M6 x 10 B C...
Page 187: ..._ REGARD 3900 _ 5 6 ATEX REGARD 3900 M3 REGARD 3900 3920 REGARD 3910 5 6 1 6 4 44711 44712...
Page 190: ..._ REGARD 3900 _ 5 6 3 24 REGARD 3910 Dr ger 2 44715 44716...
Page 191: ..._ REGARD 3900 _ 5 7 2 5 2 0 5 2 5 7 1 4 20 44717 44718...
Page 194: ..._ REGARD 3900 _ 5 8 2 A1 A2 F1 RL1 RL8 PSU 44723...
Page 195: ..._ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
Page 196: ..._ REGARD 3900 _ 6 6 1 20 2 Dr ger 6 1 1 1 Hold II 1 44727 44702...
Page 202: ..._ REGARD 3900 _ Under range Over range Fault F Fault F...
Page 203: ..._ REGARD 3900 _ Fault F Inhibit 1 0 1 0 3 Inhibit 0 20 RS 232...
Page 257: ..._ REGARD 3900 257 _ 1 Dr ger 283 Dr ger Dr ger Dr ger Dr ger Dr ger 2 2 1 2 2...
Page 267: ..._ REGARD 3900 267 _ 5 5 3 Power AC LED 24 V Sk2 AC on Power AC LED LED 44710 44729 44711...
Page 271: ..._ REGARD 3900 271 _ Dr ger REGARD 3910 2 m 5 7 2 5 mm2 0 5 mm2 44716 44717...
Page 272: ...272 _ REGARD 3900 _ 5 7 1 4 20 mA 6 4 2 4 4 5 7 2 4 20 mA 44718...
Page 274: ...274 _ REGARD 3900 _ 5 8 2 5 mm2 0 5 mm2 5 8 1 Acknowledge OK RR 44722...
Page 275: ..._ REGARD 3900 275 _ 5 8 2 A1 A2 F1 RL1 RL8 PSU 44723...
Page 276: ...276 _ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
Page 277: ..._ REGARD 3900 277 _ 6 6 1 20 LCD 2 Dr ger 6 1 1 1 Hold II 1 2 Hold II 1 6 1 2 44727 44702...
Page 284: ...284 _ REGARD 3900 _ 269 10 8 2 2 8 2 3 8 2 4 1 2 1 40 90 2 2 3 3 LED LED OK LED OK 4 mA...
Page 290: ...290 _ REGARD 3900 _ 1 4208796 1 4208800 1 4208801 1 4208802 1 4208803...