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Installation & Operating Instructions

EMC-DMA-2.0

Energy Management Consultants, 1550 La Follette Street, Fennimore, WI 53809

Tel. +1-608-822-3550 • Fax +1-608-822-3847 • E-mail: [email protected] • Web: www.emccontrols.com

Specifications subject to change without notice.

rev. 04/15/19

43273_ins_DMA_2.0

3 of 4

Operation continued...

Buzzer Reset Interval - 0 min or 5 min RESET 

(Switch 2 of DIP Switch S2)

If the switch is set in the “ON” position, then the Reset = 0 minutes 

and the buzzer timer resets immediately after the door is closed. This 

essentially means that there is no waiting period before you should 

open the door again. The buzzer will not sound again unless the door is 

opened for longer than the Door Timer Interval rotary switch setting.
If the switch is set in the “OFF” position, then the Reset = 5 minutes 

and the buzzer timer will not reset until the door has been closed for 

more than 5 minutes. This means that if the door has been open for 

longer than the Door Timer Interval rotary switch setting and the buzzer 

sounds, then closing the door will silence the buzzer BUT NOT reset the 

buzzer timer. The buzzer will immediately sound if the door is opened 

any time within the next 5 minutes. Each time the door is opened during 

this period, a new 5 minute “count down” period is started. The Door Status LEDs will change to green once the 5 

minute period has expired.

Door Timer Interval - SECONDS or MINUTES 

(Switch 3 of DIP Switch S2)

Normal operation is set to “OFF” - MINUTES.
For a quick confidence test, this switch can be set to SECONDS by placing it to the “ON” position. This means that 

the buzzer will sound after 1 to 30 seconds (depending on the rotary switch settings) rather than 1 to 30 minutes.
This switch also changes the Buzzer Reset Interval from minutes to seconds (5 min RESET now equals 5 seconds 

RESET).

Operational Test - OPERATE or TEST 

(Switch 4 of DIP Switch S2)

Used to test all of the output combinations of the DMA-2.0. 

NOTE: The test mode disables door monitoring.

1. Set DIP switch (S2) to TEST.
2. Set rotary switch (S1) to the positions in the Operational Chart below to confirm that the unit’s output matches 

those listed in the table.

3. Return the unit to normal operation by setting DIP switch to OPERATE and rotary switch (S1) to its intended time.

Rotary Switch 

(S1) Position 

Power 

LED 

Both Relay 

LEDs 

Both Relays 

Door Status 

LEDs 

Buzzer 

1 min 

On 

Off 

De-energized 

Solid green 

Silent 

5 min 

On 

On 

Energized 

Flashing amber 

Silent 

10 min 

On 

On 

Energized 

Flashing red 

Sounding 

15 min 

On 

Off 

De-energized 

Solid amber 

Silent 

20 min 

On 

Off 

De-energized 

Solid red 

Silent 

25 min 

On 

Off 

De-energized 

All off 

Silent 

 

Operational Chart

Fig. 5:

 DIP Switches (S2)

Содержание EMC-DMA-2.0

Страница 1: ...selected time will also energize a buzzer to alert personnel nearby that the door should be closed immediately The unit also contains two auxiliary relays that will energize whenever the door is opened to alert other user supplied warning devices or a building automation system A green LED inside the unit illuminates whenever power is present and red LEDs illuminate when the auxiliary relays are e...

Страница 2: ...the buzzer will sound Closing the door will de energize both of the Auxiliary Relays silence the buzzer if it is on and change the color of the Door Status LEDs The Auxiliary Relays are energized whenever the door is open and de energized whenever it is closed The Door Status LEDs on the face of the unit change colors depending on the conditions listed in the table below Door Status Additional Con...

Страница 3: ...ng this period a new 5 minute count down period is started The Door Status LEDs will change to green once the 5 minute period has expired Door Timer Interval SECONDS or MINUTES Switch 3 of DIP Switch S2 Normal operation is set to OFF MINUTES For a quick confidence test this switch can be set to SECONDS by placing it to the ON position This means that the buzzer will sound after 1 to 30 seconds dep...

Страница 4: ...Possible Solutions Confirm that there is 24 VAC or 24 VDC at connector TB1 and that the polarity is correct Make sure that the unit is in Operate mode not Test mode DIP Switch S2 Confirm that the door switch is wired as a Normally Closed NC connection a closed door equals an open circuit Check for loose or shorted wires at the Door Switch connection Make sure that the unit is in Operate mode not T...

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