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NOTE: 

See the MATE3 manual for advanced generator start and other setup features

Acceptable modes for Gen input:  Gen, Support 
(based on application)

Acceptable modes for Grid input:  Grid Tied, 
Backup, UPS, Mini Grid (based on application)

Grid Tied or Backup required; 

Off Grid mode not supported 

for this application

IMPORTANT:  

Steps          through          required for proper operation.

Programming should be done by a qualified installer who is trained on programming inverter power systems. 
Failure to program accurate parameters for the system could potentially cause equipment damage.  

Damage caused by inaccurate programming is not covered by the limited warranty for the system.

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4

5

2

Front Relay

Rear Relay

Energize/Startup Procedures

Pre-startup Procedures:

1.

Double-check all wiring connections.

2.

Inspect the enclosure to ensure no tools or debris has been left inside.

3.  Disconnect all AC loads at the backup (or critical) load panel.

4.

Disconnect the AC input feed to the GSLC at the source.

900-0156-01-00 Rev B.vsd\Page-3\2013-06-14

©2013 OutBack Power Technologies.  All Rights Reserved.

GSLC175-AC-230

CAUTION: Equipment Damage

Incorrect polarity will damage the equipment.

!

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2

Functional 

Test Points

Battery Voltage Test Points

GRID IN Voltage Test Points 

(Terminal bus bar = TBB)

Grid-Tie Inverter Test Points

AC OUT Voltage Test Points

(Terminal bus bar = TBB)

4a

2b

GEN IN Voltage Test Points 

(Terminal bus bar = TBB)

2b

3a

2b

5a

2b

MATE3 Programming

Relays 

(Top View)

1b

1a

1

2

3

4
6

2a 4a 5a

3a

5

6

2b

To energize the AC-coupled system:

1. Using a digital voltmeter (DVM), verify 48 Vdc 

on the DC input terminals by placing the DVM leads 
on        and        .  

Confirm that the battery voltage is correct for the 
inverter model.  

Confirm the polarity.

2. Turn on (close) the DC circuit breakers from the 

battery bank to the inverter.   

3.  Perform all programming (see the next section).  

4. If the inverter is in the off state, turn it on.

5. Verify 230 Vac on the AC Output TBB by placing 

the DVM leads on        and       .

6. Turn on (close) the AC output circuit breakers.   

7. No voltage should be present on the grid-tied inverter 

terminals        and       .  Verify the condition of these terminals 
using the DVM.

8.  Start the generator (if present).  Verify 230 Vac at the location of the AC sources. 

9. Turn on the AC input feed to the GSLC at the source.

10. Verify 230 Vac on the GRID IN TBB by placing the DVM leads on        and       .

11. Verify 230 Vac on the GEN IN TBB by placing the DVM leads on        and       .

12. Turn on the AC disconnects at the backup (or critical) load panel and test the loads.

13. Turn on (close) the grid AC input circuit breaker.  

14. When the rear relay         energizes, its LED indicator will illuminate and AC should be present 

on the grid-tied inverter terminals        and        .  Verify 230 Vac on these terminals using 
the DVM.

15.  Check the grid-tied inverter for proper functionality.

Optional steps to test generator and ROCB function:  

16.  Turn on either the 12V AUX or the RELAY AUX menu item, or the generator circuit breaker 

(if present).  Turning on any of these three items will energize the front relay       .  
The LED indicator on the front relay will illuminate.  At the same time the ROCB        will 
automatically turn off (open).  No AC should be present on the grid-tied inverter terminals         
and        .  Verify the condition of these terminals with the DVM.

17.  Turn off the generator or AUX.  The front relay will de-energize.  The LED indicator will turn off. 

The ROCB will automatically turn on (close).  AC should be present on the grid-tied terminals.  
Repeat these steps for the other two items from Step 16 if testing is necessary.

1a

1b

1

2

3

2a

2b

3a

2b

4

5

4a

2b

5a

2b

6

3a

2b

3a

2b

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7

6

1a

1b

Rear Relay

ROCB

6

7

7

LED Indicator

7

1

1

5

2a

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