janitza UMG 801, Руководство пользователя

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UMG 801 www.janitza.de
54
9.6 Digital outputs
The device has 4 digital outputs, which:
·Are electrically isolated from the evaluation elec-
tronics via optocouplers.
·Have a common reference.
·Are not short-circuit proof.
·Require an external auxiliary voltage.
·Can be used as pulse outputs to count energy
consumption.
·Can switch DC and AC loads via relays or semi-
conductor electronics.
·Can be controlled via Modbus.
+
K1
K2
K3
K4
22 23 24 25 26
4 3 2 1 V+
Digital output
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
discharge!
Use shielded cables for the connections to the
digital inputs and outputs!
ATTENTION
Connection errors can damage the device and
cause material damage.
The digital outputs are not short-circuit proof!
Connection errors can therefore lead to damage to
the connections.
Make sure that the wiring is correct when
connecting the outputs.
INFORMATION
· For more information on configuring the digital
outputs, see section „12. Digital inputs and
outputs“ on page 70.
·Functions for the digital outputs can be configured
easily and clearly in the GridVis
®
software (see
www.janitza.de).
·To use the GridVis software
®
, your device requires
a connection (interface) to a PC.
·When using the digital outputs as pulse outputs,
measurement errors can occur due to residual rip-
ple. For the supply voltage (DC) of the digital inputs
and outputs, use power supplies whose residual
ripple is less than 5% of the supply voltage.
Abb. Connection example of two relays to the digital
outputs
K2
External
auxiliary voltage
+
24 VDC
-
K1
DC
DC
22
23
24
Digital Ouput 4
25
Digital Ouput 3
Digital Ouput 2
26
Digital Ouput 1
LED
LED
LED
UMG 801
Digital outputs 1-4