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Specifications subject to change without notice. | USA 160811 | Page 28 of 34
MGC2 – UserManual
PolyGard
®
is a registered trademark of MSR-Electronic GmbH
4.8.10 Define the Failure Relay
In this menu you can define one of the relays as fault indication relay. See also fault management (4.1)
Symbol
Description
Default Status Function
5
Fault Relay
5
0-30 = Definition of the fault indication relay
4.8.11 Acknowledge a Relay in Latching Mode by a DI
This configurable functionality is available from version 9.02.
All relays in latching mode can be acknowledged via the set DI.
See also 4.5.3 latching function.
When operating the DI with these settings, all non-active error messages are deleted and moved to the service
technicians menu.
Note:
This function is not suitable for all applications. Especially in connection with pellistors and higher gas concentrations,
it is not allowed because the absence of gas has to be checked manually on site.
In such cases, this input should only be able to be actuated by a key switch.
Symbol
Description
Default Status Function
0
DI
0
0-4 digital inputs
4.8.12 Power On Time
Gas sensors need a running-in period, until the chemical process of the sensor reaches stable conditions. During this
running-in period the current signal can lead to an unwanted releasing of a pseudo alarm. Therefore the Power ON
time is started at the Gas Controller after switching on of the power supply. While this time is running out, the Gas
Controller does not activate alarms. The power on status occurs on the first line of the starting menu.
Symbol
Description
Default Status Function
30 s
Power On Time 30 s
XX = Define the power on time (sec.)
4.8.13 Registration of Expansions Modules
The MGC2 system can manage up to five EP-05 expansion modules, each consisting of 5 alarm relays, 4 analog
inputs and 2 analog outputs. The module’s addresses, 1 to 5, are assigned via the address selector on its printed
circuit board. Connected EP-05 modules are registered in this menu with the desired function (only alarm relay or
alarm relay + analog input). See table.
The Controller constantly checks registered EP-05 modules and will shows a fault signal in the event of a
communication error.
Note:
EP Module 0 is the built-in GC-05
Controller Module
and should not to be confused with other EP-05
Expansion
Modules
. This unit is always active and cannot be disabled.
Active analog inputs at an EP module occupy the four SP addresses; therefore they aren’t available any longer for the
bus transmitters.
