Alarm And Relay Connections; Connecting An Alarm With Dry Contact; Relay Connection; Washing System Connection - Videotec Série 2 Manuel D'instructions

7.5 Alarm and relay connections

The unit is equipped with the alarms and relays
indicated in the table.
ALARM AND RELAY CONNECTIONS
Cable color Description
Red-Blue Relay 1, A
Grey-Pink Relay 1, B
Brown-Green Relay 2, A
White-Green Relay 2, B
Green Common alarm, COM
Brown Alarm 1 (dry contact), AL1
White-Yellow Reset input power supply
Black Reset input
Tab. 6
Electrically disconnect all the cables not
connected and not listed on the table
because they have no function.
7.5.1 Connecting an alarm with dry
contact
For a dry contact alarm (alarm AL1), implement the
connection as shown in the figure.
AL1 COM
Fig. 15
20
The dry contact alarm can be NO (normally open) or
NC (normally closed).
For further information refer to the relative chapter
(Web Interface manual, Digital I/O Page).

7.5.2 Relay connection

Due to the absence of polarity, both terminals of the
same relay can be connected either to alternating or
direct current voltages.

7.5.3 Washing system connection

When the washing system is enabled, the relay 2
report the pump activation (7.5 Alarm and relay
connections, page 20).
About the configuration please refer to the relative
manual (9.2 Web interface, page 21).
Dry contact
All alarms have a reach of 200m (656ft)
max, which can be obtained using a
shielded cable with a minimum section of
0.25mm² (23AWG).
The relay can be used with the
specifications outlined below. Working
voltage: up to 30Vac or 60Vdc. Current: 1A
max. Use suitable cable sections with the
following characteristics: from 0.25mm²
(23AWG) up to 1.5mm² (15AWG).
For further details on configuration and
use, refer to the relative manual.
MNVCNXPTZ2_2032_EN