janitza UMG 512-Pro, User Manual And Technical Data

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UMG 512-PRO www.janitza.com
44
ATTENTION
Transmission error and material damage due to
electrical malfunction.
With a cable length of more than 30 m, there is an
increased probability of transmission errors and
damage to the device due to atmospheric dis-
charge!
Use shielded cables for the connections to the
digital inputs and outputs!
9. Digital inputs and outputs
- +
Fig. Connection of digital inputs
9.1 Digital inputs
The device has two digital inputs.
On one digital input, an input signal is recognized
when a voltage of at least 18 V and at most 28 V
DC (typically at 4 mA) is present.
For a voltage from 0 to 5 V and for a current of
less than 0.5 mA, there is no input signal.
-
+
24 VDC
S1
S2
External
Auxiliary voltage
14
15
16
2k21
2k21
2k21
2k21
2k21
Digital
Input 1
Digital
Input 2
UMG 512-PRO
Digital inputs 1-2
Fig. Example of connection of external contacts S1 and
S2 to digital inputs 1 and 2
INFORMATION
Observe the polarity of the supply voltage.