UMG 96-PA
/ UMG 96-PA
MID
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28
9.1.1
S0 pulse input
Every digital input is designed for connecting an S0
pulse generator according to DIN EN62053-31.
You require an external auxiliary voltage with
an output voltage in the range of 18 - 28 V DC
and a resistance with 1.5 kOhm.
-
+
24V DC
External auxiliary
voltage
S0 Pulse
generator
1.5k
Fig.
Example for connectFni an S0 pulse ienerator to
a dFiFtal Fnput 1g.
17
18
19
20
2k21
2k21
2k21
2k21
2k21
2k21
Digital
Input 1
Digital
Input 2
Digital
Input 3
UMG 96-PA
Digital inputs 1-3
LED
LED
LED
9. Digital Inputs and Outputs
9.1 Digital inputs
The device has three digital inputs allowing
a connection, for example, to one signal each.
If a signal is active, the corresponding LED is
illuminated green.
The device recognizes an input signal on the
digital input if
·A voltage of at least 18 V and no more than
28 V DC (typically at 4 mA) is applied.
·A current of at least 0.5 mA and no more than
6 mA is applied.
The device has
·
3 digital inputs
and
·
3 digital outputs.
-
+
Fig.
Port for dFiFtal Fnputs
Fig.
Example for connectFni the external swFtchFni
contacts S1-S3 to the dFiFtal Fnputs 1, 2 and 3g.
17
18
19
20
2k21
2k21
2k21
2k21
2k21
2k21
Digital
Input 1
Digital
Input 2
Digital
Input 3
-
+
24V DC
S1
S2
External auxiliary
voltage
UMG 96-PA
Digital inputs 1-3
S3
LED
LED
LED
NOTE
Observe the polarity of the supply voltage.
CAUTION
Transmission errors and property damage
due to electrical failure.
At a line length exceeding 30 m, there is a
likelihood of transmission errors and damage to
the device as a result of atmospheric discharge.
Use shielded lines for connecting to the
digital inputs and outputs!
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