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©2001 Xantrex Technology Inc.

P/N 975-0027-01-01 Rev A 09/01

3.0 OPERATION

When using this type of configuration, the separate diversion or “dump” load

must be able to absorb more power than the charging source is able to produce at
its peak output; otherwise, the DC voltage becomes unregulated.  The current draw
of the diversion load is very important.  Problems can arise from operating with a
load that is too small or too large.  A diversion load that is too small will not be able
to absorb all the excess power from the current source once the batteries are full;  a
load that is too big may cause a large in-rush of current above the design rating of
the relay, causing premature failure.  A good design practice is to use a diversion
load that draws about 25% more current than the charging source’s maximum
output capability. The diversion load must be available for the diversion of power at
all times.  Resistive-type heating elements are the best diversion loads.  Special
direct current water heating elements are available.  Light bulbs and motors are not
recommended.

BATTERY VOLTAGE IS WITHIN

ACCEPTABLE LIMITS

BATTERY VOLTAGE EXCEEDS

ACCEPTABLE LIMITS

N.O.

N.C.

COM

ALM

120 VAC

Coil

N.O.

COM

N.O.

N.C.

COM

ALM

External Power Relay

120 VAC

Coil

BATTERY BANK

+

-

External Power Relay

N.C.

N.O.

COM

N.C.

Communications

Cable

J1

Inverter

AUX

J1

Inverter

AUX

Communications

Cable

BATTERY BANK

+

-

DIVERSION

LOAD

DIVERSION

LOAD

Figure 3-7

Using the ALM as a Diversion Load Controller

Low-Voltage Alarm

The ALM can be configured to monitor the inverter’s battery voltage and to

engage an external alarm when the battery voltage decreases to a low level.

N.O.

N.C.

COM

EXTERNAL

INDICATOR POWER

SOURCE

INVERTER'S BATTERY VOLTAGE IS WITHIN

ACCEPTABLE LIMITS

External

Error

Indicator

External

Alarm OFF

Switch

INVERTER'S BATTERY VOLTAGE IS BELOW

ACCEPTABLE LIMITS

N.O.

N.C.

COM

External Error

Indicator

External

Alarm OFF

Switch

EXTERNAL

INDICATOR POWER

SOURCE

ALM

ALM

Inverter

AUX

Communications

Cable

J1

Inverter

AUX

Communications

Cable

J1

Figure 3-8

Low-Voltage Alarm Configuration

Summary of Contents for ALM - REV A

Page 1: ...Owner s Manual Auxiliary Load Module...

Page 2: ...ontents of this guide Xantrex International assumes no responsibility for errors or omissions Note as well that specifications and product functionality may change without notice Since the use of this...

Page 3: ...2 0 INST 2 0 INSTALLA ALLA ALLA ALLA ALLATION TION TION TION TION 7 7 7 7 7 Tools Required 7 Pre Installation 7 Mounting 8 Wiring 10 Terminal Block Wiring 10 RY 11 Error Indicator Wiring 11 Communica...

Page 4: ...TING 4 0 TROUBLESHOOTING 4 0 TROUBLESHOOTING 4 0 TROUBLESHOOTING 23 23 23 23 23 5 0 SERVICE INFORMA 5 0 SERVICE INFORMA 5 0 SERVICE INFORMA 5 0 SERVICE INFORMA 5 0 SERVICE INFORMATION TION TION TION T...

Page 5: ...er through a phone type cable Commands from the inverter control the relays when defined parameters programmed via the inverter s control device e g display panel or remote control are met Refer to th...

Page 6: ...een LED indicates whether relay RY10 has engaged or not If this LED is illuminated the N O to COM contacts are connected If this LED is not illuminated the N C to COM contacts are connected INVERTER O...

Page 7: ...ys by providing the operating voltage to the relay coils RY9 and RY10 When the relays are enabled they will respond to the control signals provided by the inverter When the switch is in the RELAYS DIS...

Page 8: ...rmally Closed N C The N C contact is connected to the COM terminal of the relay when the relay is de energized Normally Open N O The N O contact is connected to the COM terminal of the relay when the...

Page 9: ...wer an external error indicator Fuses Each relay s common COM contact is protected with a 6 3 amp 5 mm x 20 mm 250 VAC fuse which will open if excess current is drawn through the relay contacts Always...

Page 10: ...1 0 INTRODUCTION 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 6 Notes...

Page 11: ...to a flat vertical surface such as a wall Tools Required screwdrivers Phillips and flat blade wood screws 10 drill and assorted bits anchors if required wire strippers WARNING BEFORE MAKING ANY CONNEC...

Page 12: ...and use the unit as a template to mark the four hole locations See Figure 2 3 NOTE Six holes are provided in the back panel of the ALM Use the two top and two bottom screw holes Do not use the middle...

Page 13: ...ntinued Figure 2 3 Mounting Holes Mounting Hole Do NOT use this hole for mounting Mounting Hole Do NOT use this hole for mounting Mounting Hole 3 4 1 Dual Knockouts 3 4 1 Dual Knockouts 3 4 1 Dual Kno...

Page 14: ...he relay contact Insert the wire stripped back 1 4 inch into the terminal block Snap the lever down to secure the wire Please refer to the auxiliary relay section of the inverter s operation manual fo...

Page 15: ...rm OFF Switch EXTERNAL INDICATOR POWER SOURCE ALM NO SIGNAL FROM INVERTER relay disengaged For convenience add an external OFF switch in line with the alarm device This allows turning off the alarm un...

Page 16: ...one type cable through one of the knockouts fitted with a strain relief or conduit Connect one end of the cable to the jack labeled J1 on the ALM circuit board Connect the other end of the cable to th...

Page 17: ...SW2 Terminal Block wire size 14 28 AWG Interconnect cable J1 WARNING DO NOT OPERATE WITH COVER REMOVED HAZARDOUS VOLTAGES MAY BE PRESENT Connect to Gen Port of Trace Inverter SUPPLIED FUSE RATING 6 3...

Page 18: ...2 0 INSTALLATION 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 14 Notes...

Page 19: ...the inverter s control device i e display SWRC remote press the INV MENU button to access the inverter menu Select ON from the display The blue INVERTER OPERATIONAL LED should immediately turn ON NOTE...

Page 20: ...user defined delay when the relay energizes or de energizes 2 a hysteresis voltage setting the difference between the relay activation and deactivation or 3 a temperature compensation setting For spec...

Page 21: ...Battery Exhaust Fan Controller Use the ALM to ventilate enclosed battery compartments to remove explosive gasses acid fumes excess heat and humidity The ALM can be connected to automatically turn on...

Page 22: ...s Photovoltaic Charge Controller The ALM can be used to control the charging of batteries from a solar array The relays can be adjusted to open if the PV array s output increases above the maximum cha...

Page 23: ...s the solar array and stops the charging process The external relay can be either a standard mechanical type or a mercury displacement type depending on the voltage and current required The mercury di...

Page 24: ...N C DC Load Communications Cable Inverter AUX N C Communications Cable Inverter AUX BATTERY BANK N O COM ALM J1 J1 Figure 3 6 Using the ALM as a DC Load Controller Diversion Load Controller Diversion...

Page 25: ...ents are the best diversion loads Special direct current water heating elements are available Light bulbs and motors are not recommended BATTERY VOLTAGE IS WITHIN ACCEPTABLE LIMITS BATTERY VOLTAGE EXC...

Page 26: ...2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 22 3 0 OPERATION Notes...

Page 27: ...r o e d o m e h t e g n a h C r o t a r e n e g r o y t i l i t u C A t u p n i s r e t r e v n i e h t o t r e w o p n e e r g s t h g i l D E L e u l B t o n o d s D E L w o l l e y d n a t h g i l...

Page 28: ...4 0 TROUBLESHOOTING 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 24 Notes...

Page 29: ...____________________________________ Purchase Date _____________________________________ Problem ___________________________________________ Include a telephone number where you can be reached during...

Page 30: ...5 0 SERVICE INFORMATION 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 26 Notes...

Page 31: ...thout obligation to modify or upgrade those previously manufactured Defective products must be returned to Xantrex Technology Inc or its Authorized Service Center in the original packaging or equivale...

Page 32: ...6 0 WARRANTY 28 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 Notes...

Page 33: ...tection Protection Protection Protection Protection 3 Fuses 6 3 amps max 5 mm x 20 mm time delay Bussman GDC Littlefuse 218 series Indicator LEDs Indicator LEDs Indicator LEDs Indicator LEDs Indicator...

Page 34: ...7 0 SPECIFICATIONS 2001 Xantrex Technology Inc P N 975 0027 01 01 Rev A 09 01 30 Notes...

Page 35: ......

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