NewMar SPS 12-20 Installation & Operation Manual Download Page 5

P.O. Box 1306

 Newport Beach

   California 92663

   

  

Phone: 714-751-0488  

     Fax: 714-957-1621

     E-Mail: [email protected]

1.16  Internal Alarm Card  

The alarm card provides voltage free relay contacts in the event of:

• AC failure

• SPS failure

• SPS Shutdown Mode (over temperature, over voltage, current limit)

• High voltage output

• Low voltage output

When SPSs are connected in parallel using an RJ45 patch cable (Newmar part # 466-4524-0) to connect between 

the alarm and control interface on each rectifier, the alarm outputs on the Alarm Card give the status of 

all the 

connected units. This means that only one alarm card needs to be connected to the alarm circuitry when the 

rectifiers are connected in parallel.

Installation

2.1 

General Warnings

The SPS contains no user serviceable components. Do not disassemble the SPS.

To isolate the SPS from AC power, simply unplug the IEC mains connector from the rectifier.

DANGER

Do not operate the rectifier if the covers are damaged or removed in any way.

• The rectifier contains voltages that may be lethal even after the input supply has been 

   removed

• The rectifier contains components at High Temperatures that may burn if touched

2.2 

Positioning of SPS

A great deal of care should be taken with positioning the unit, as the position can affect its life expectancy and 

performance.

This unit MUST be mounted on a wall or vertical surface using the side mounts. Observe the up ^ arrow printed on 

the lower left of the front panel.

The SPS should be positioned close to the load and batteries, so as to keep the length of the low voltage cables to a 

minimum. These cables are carrying high currents, and voltage drop in the cables must be kept to a minimum. It 

is better to have a long AC lead and short DC voltage cables.

The rectifier must be positioned so that airflow through the rectifier is not impeded in any way. These rectifiers are 

convection cooled – their performance and life expectancy is reduced if the airflow is impeded.

The SPS should not be mounted above another rectifier or a source of heat.

The rectifier should be mounted 2 inches clear of any other solid object, and care should be taken to ensure that 

air entering the rectifier is cool air, and has not been heated by other equipment.

12.25”

11.8””

2.44”

.24”

.89”

4.7”

6.28”

5

Summary of Contents for SPS 12-20

Page 1: ...2 Troubleshooting 10 1 9 Input Over Voltage Shut Down 4 3 3 Fuses 10 1 10 Input Inrush Current Limiter 4 4 Adjustments 10 1 11 Over Temperature Shutdown 4 4 1 Standard Settings 11 1 12 Reverse Polari...

Page 2: ...e the present state of the rectifier and diagnose faults AC On This LED glows green to indicate that AC power is connected to the unit and that the primary stages of the rectifier are operating Shutdo...

Page 3: ...ches the battery ve supply the v is common with the battery Do not connect the Battery and Load v together The LVD voltage and the LVD Hysterisis voltage are preset in the factory but may be adjusted...

Page 4: ...if they fail 1 13 Parallel Rectifier Operation The SPS may be connected in parallel to source more current or to provide a degree of redundancy The rectifiers should have the load share signal connect...

Page 5: ...ethal even after the input supply has been removed The rectifier contains components at High Temperatures that may burn if touched 2 2 Positioning of SPS A great deal of care should be taken with posi...

Page 6: ...t outlet be used so the rectifier will not be accidentally unplugged from the supply When hard wiring AC input the IEC AC cord provided should be wired as follows BLK WHT GRN 120 VAC L N Safety Ground...

Page 7: ...w an internal protection fuse requiring the SPS to be returned for servicing Do not connect the Temperature Compensation Probe to the Site Power System until commissioning see Section 2 7 Start Up 2 5...

Page 8: ...fier Fail alarm Rectifier Off Normal and the Low Volts alarms will also activate Note that the AC Fail Relay has its own Common connector but all the other alarm outputs share a Common contact 2 6 2 R...

Page 9: ...y connections and then plug them into the SPS Re connect the mains and the Float Boost LED should glow first yellow then after about 10 seconds either green or yellow depending on the charge of the ba...

Page 10: ...e current drawn by the battery from the SPS is as expected Check that the battery takes the charge Connect the DC load to the SPS with AC off and disconnect the battery Turn AC on and check that the c...

Page 11: ...m back of unit with AC input socket on left 4 2 Adjust Float Voltage Connect a variable load set to minimum load to the battery connections of the rectifier Disconnect the Temperature Compensation Pro...

Page 12: ...ction Disconnect the Temperature Compensation Probe Connect an accurate voltmeter across the output Turn the mains on to the rectifier and adjust the variable voltage power supply up until the unit go...

Page 13: ...ature Compensation Probe Connect an accurate voltmeter across the output Turn AC and adjust the variable voltage power supply up until the alarm activates Adjust the Alarm Output High trimpot to adjus...

Page 14: ...P O Box 1306 Newport Beach California 92663 Phone 714 751 0488 Fax 714 957 1621 E Mail techservice newmarpower com 7 Dimensional Drawings 14...

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