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P.O. Box 1306

Newport Beach

California 92663

   

  

Phone: 714-751-0488  

     Fax: 714-957-1621

     E-Mail: [email protected]

www.newmartelecom.com

Advanced settings (Technician Recommended): Back-Up Timer, Trigger Threshold and Hysteresis

Factory Defaults 

Setting

Factory Default

TMR Disconnect Time

Not activated

Back-Up Timer (battery)

15 min.

Back-Up Trigger Voltage

10.5V

Back-Up Hysteresis

1V

Charger Re-Start Interval 6 hrs.

1. DIP switch group S5, switch numbers 1 - 3 are for changing the 

Back-Up Timer Interval

 (See Table 2). This adjustment 

sets the amount of time the MDP’s internal back-up battery remains connected to the output/load when a low voltage 

event is detected.

2. DIP switch group S5, switch numbers 4 - 6 are for changing the 

Back-Up Trigger Voltage Threshold

 (See Table 3). This 

adjustment sets the voltage at where the internal battery is applied to the output/load and the input source (vehicle 

battery) is disconnected.

3. DIP switch group S4, switch numbers 4 - 6 are for changing the 

Back-Up Hysteresis

 (See Table 4). Hysteresis sets a 

voltage level above the back-up trigger level for the reconnection of input source and disconnection of internal battery 

(see table 4). Hysteresis should be set after determined the amount of voltage drop from the DC source (vehicle battery) 

to input terminals of the MDP, when the intended output load current is at its maximum level.

 Note: Remember to take 

into account at least 2 amps for internal charger. The internal charger can draw approximately 2 amps from the input source to 
charge the internal back-up battery if it is deeply discharged.

4. DIP switch group S4, switch numbers 1- 3 are for changing the 

Charger Re-start Interval

 (See Table 5). The charging 

time of the internal battery is not settable; it is dictated by the battery state of charge, battery condition and temperature. 

In order to reduce the current drain on the vehicle battery the internal battery charger turns OFF once it completes a 

charging cycle. However the time at which the charger will turn back on to refresh the charge on the internal battery is 

adjustable. 

Table 2                                                                                   Table 3

S5 - Back-Up 

Timer

Pos 1

Pos 2

Pos 3

15 Minutes

OFF

OFF

OFF

30 Minutes

ON

OFF

OFF

1 Hr

OFF

ON

OFF

2 Hrs

ON

ON

OFF

3 Hrs

OFF

OFF

ON

4 Hrs

ON

OFF

ON

5 Hrs

OFF

ON

ON

6 Hrs

ON

ON

ON

S5 - Back-Up

Trigger

Pos 4

Pos 5

Pos 6

10.5 Volts

OFF

OFF

OFF

11.0 Volts

ON

OFF

OFF

11.2 Volts

OFF

ON

OFF

11.4 Volts

ON

ON

OFF

11.6 Volts

OFF

OFF

ON

11.8 Volts

ON

OFF

ON

12.0 Volts

OFF

ON

ON

12.2 Volts

ON

ON

ON

7

Summary of Contents for MDP-25.0

Page 1: ...Materials Provided 3 Installation 3 Mechanical Power Wiring Signal Wiring Motorola Output Settings Default and Optional Operation 4 Status LEDs Disconnect Timer TMR Operation Advanced Settings Backup...

Page 2: ...Fax 714 957 1621 E Mail techservice newmarpower com www newmartelecom com Quick Reference Guide Status LEDs Page 5 Status LED Legend Page 5 D Sub 9 Pin Motorola Interface Page 4 Input Output Wiring P...

Page 3: ...engine is off Allows use of accessory loads per programmed time limit user adjustable while preserving battery for emergency starting Factory default is not active see page 5 Built in LVD Low Voltage...

Page 4: ...nput wires by disconnecting the battery or shutting off the appropriate circuit Note the MDP functions as an uninterruptable power source If electronics are wired directly to the MDP output and the pr...

Page 5: ...on of voltage occurs augmenting voltage to the electronics for 3 seconds If proper primary voltage is not restored within the 3 second time frame input from the vehicle battery disconnects and electro...

Page 6: ...nce the battery voltage reaches approximately 14 2 volts the charging current will start to reduce The voltage will remain at 14 2 volts stage 2 high rate absorption charge until the current to the ba...

Page 7: ...s 5 Note that the TMR feature is disabled if the Ignition IN pin Pin 2 of the D sub 9 pin connector on front panel see Figure 2 is connected to a voltage greater than 2 volts i e battery Back up funct...

Page 8: ...internal battery see table 4 Hysteresis should be set after determined the amount of voltage drop from the DC source vehicle battery to input terminals of the MDP when the intended output load curren...

Page 9: ...battery loosen and back out the four front Battery Access Plate securing screws and remove Battery Access Plate Once the plate is removed you will see the battery is secured in position by a Locking...

Page 10: ...N If a problem persists after you have applied the above outlined solutions or if you have any questions about the installation and proper operation of the MDP 25 0 please contact NEWMAR s Technical S...

Page 11: ...Box 1306 Newport Beach California 92663 Phone 714 751 0488 Fax 714 957 1621 E Mail techservice newmarpower com www newmartelecom com DIMENSIONAL DRAWINGS 6 980 8 460 5 400 4 750 300 6 000 281 x 4 5 79...

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