Future Design MCT-CM User Manual Download

Page: 173 / 247

MCT-CM

173

Alarms for information on assigning the alarm to the digital output.

NOTE: If more than one loop/monitor alarm is assigned to the output, the output

will not operate correctly and may cycle on and off uncontrollably. Do not
assign more than one alarm to an output.

Digital Input Alarm:

When selected, the output will turn on when the selected digital input alarm occurs.
The output will stay on until the alarm is silenced. The selected digital input must be
configured as an alarm input or the output will not operate.

Digital Input Control:

When selected, the output will turn on and off based on the selected input status.
The input acts as the switch to turn the digital input on and off. The selected digital
input must be configured for digital output control or the output will not operate.

*Remote Alarm (NC):

When selected, the output

acts as a ‘fail-safe’ fault output. When no alarm is present,

the output will be energized. Any alarm in the MCT will de-activate the output. When
the alarm ‘Reset’ button is pressed on the Alarm screen, the output will turn back on.
When used in conjunction with the repeat time setting, the output will automatically
turn back off, after the repeat time period, if any alarm condition is still present.

Defrost:

When selected, the output will turn on during an active defrost cycle. When defrost
is inactive or the fan delay is active, the output will be off. See section 9.1 Defrost for
more information on defrost operation.

NOTE: When redundant system operation is enabled in the configuration, this

output will only operate when defrost is active and system 1 is the primary
system.

Precool:

When selected, the output will turn on during the fan delay period after a defrost
cycle. When defrost is inactive or a defrost cycle is in progress, the output will be off.
See section 9.1 Defrost for more information on defrost operation.

NOTE: When redundant system operation is enabled in the configuration, this

output will only operate when precool (fan delay) is active and system 1 is
the primary system.

Redundant System 1:

When selected, the output will turn on when system 1 is selected for operation based
on system redundancy settings. See section 9.2 Redundancy for more information
on redundant system operation.

Redundant System 2:

When selected, the output will turn on when system 2 is selected for operation based
on system redundancy settings. See section 9.2 Redundancy for more information
on redundant system operation.

Defrost 2:

When selected, the output will turn on during an active defrost cycle of redundant
system 2. When defrost is inactive or the fan delay is active, the output will be off.
See section 9.1 Defrost for more information on defrost operation.

Precool 2:

When selected, the output will turn on during the fan delay period after a defrost cycle
of redundant system 2. When defrost is inactive or a defrost cycle is in progress, the
output will be off. See section 9.1 Defrost for more information on defrost operation.