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User Manual - PolyGard
Multi-Gas-Controller MGC2-K Honeywell
After successful acknowledgment the horn remains permanently reset until all assigned alarms for this relay
function are inactive again. Only then it is triggered anew in case of an alarm.
Acknowledge the horn relay
On
Alarm 4
Of
On
Relay 4
Off
Acknowledging
On
signal
Off
Reset command by timer, external push-button or one of the operating keys.
Recurrence of the horn relay
After an alarm has been triggered, the horn will remain active until a reset action is done. After
acknowledgment of the horn relay (via a button or externally via digital input) a timer starts. When this time has
run out and the alarm is still acting, the relay is set again. This process is repeated endlessly as long as the
associated alarm remains active.
On
Alarm 4
Off
On
Relay 4
Off
Acknowledging-
On
signal
Off
Reset command by external push-button or one of the operating keys.
8.6.6 External Override
Relay 3:
The parameter setting cannot be changed.
Symbol
Description
External ON
DI 0
External OFF
DI 0
Manual operation of the alarm relays via DI does not start the "special mode", as this is a deliberate and
configured functionality. The use of the override should be used with caution, particularly the function "External
OFF".
Assignment of a digital input (DI) for the external alarm relay switching on/off.
This function has priority to gas alarm.
If External ON and External OFF are configured to the same relay and both are active at the same time, so in
this state, the External OFF command has priority. In this mode, too, the relay works respecting the parameter
settings "Static / Flashing" and "Energized / De-energized".
®
PolyGard
is a registered trademark of MSR
Phone 0049(0)8531/9004-0
Fax: 0049(0)8531/9004-54
MSR-Electronic GmbH, Bgm.-Schoenbauer-Str. 13, D 94060 Pocking www:msr-electronic.de Made in Germany
®
2
Gas concentration higher
Time
Gas concentration higher
Time
Default
Function
0
As long as DI 1-X is closed, relay switches ON
0
As long as DI 1- X is closed, relay switches OFF.
lower than threshold
lower than threshold
Time
External function
DI 0 DI 0
Specification subject to change without notice
Page
18
GAMGC2-K_E_0320
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