COVER series MZ – User manual
COMEX S.A.
2.7. Communication
Communication interface of the COVER MZ 60K power supply is located behind the front door
of the power supply, and consists of master control module (1), slave control module (2 -
option), SNMP card (3 - option), extended relay card DryContact (4 - option) , monitoring cards
(5) and the UPS start button from the "Cold Start" battery (6).
Figure 2-12 Communication interface of the MZ 60K power supply
The communication interface of the COVER MZ 80K power supply is located behind the front
door of the power supply, and consists of an extended DryContact relay card (1 - option), slave
control module (2 - option), master control module (3), SNMP card (4 - option) and monitoring
cards (5).
Figure 2-3 Communication interface of the MZ 80K power supply
The cables connected to the DryContact interface must be potential-free and separated from
the AC working conductors. Wires should be double insulated with a cross-section of 0.5 - 1.5
mm2, and their maximum length should not exceed 50m.
2.7.1. Extended communication card Dry Contact
The extended Dry Contact card allows you to connect seven additional signals, including four
input signals and three output signals. The description of signals is presented in the table below:
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