En
gl
is
h (
G
B)
20
10.3 Connecting a backup battery
Voltage supply via backup battery:
•
C to terminal 19.
•
Connect - to terminal 20.
Backup battery monitoring function:
•
C to terminal 37.
•
Connect - to terminal 38.
10.4 Relay outputs
With inductive loads (including relays and
contactors), interference suppression is necessary.
If this is not possible, protect the relay contacts using
a suppressor circuit as described below.
•
With AC voltage:
•
With DC voltage: Connect the free-wheeling
diode in parallel to relay or contactor.
Fig. 9
Suppressor circuit DC/AC
10.5 Current output
The current output can be set to one of the two
standard ranges "0-20 mA" or "4-20 mA", or it can be
freely adjusted.
•
Connect the screen to earth (PE) at one end.
Output 1: sensor 1
This current output emits the displayed measured
value as an analog current signal.
Use of current signal for measured values:
•
As input signal for another indicator.
1. Connect the + conductor to terminal 39.
2. Connect the - conductor to terminal 40.
Output 2: sensor 2
This current output emits the displayed measured
value as an analog current signal.
Use of current signal for measured values:
•
As input signal for another indicator
1. Connect the + conductor to terminal 41.
2. Connect the - conductor to terminal 42.
Note
The connection of the relay outputs
depends on the application and the final
control elements used.
Therefore the connections described
below should only be considered as
guidelines.
Current up to
Capacitor C
Resistor R
60 mA
10
μ
F, 275 V
390
Ω
2 W
70 mA
47
μ
F, 275 V
22
Ω
, 2 W
150 mA
100
μ
F, 275 V
47
Ω
, 2 W
1.0 A
220
μ
F, 275 V
47
Ω
, 2 W
Caution
Provide the relay outputs with a
corresponding backup fuse!
TM
03
72
09
28
13
+
-
DC
R
C
AC
Caution
Ensure correct polarity! Maximum load:
500
Ω
.
