STACKING INSTRUCTIONS

HOW TO FIND THE STACKING MENU-ADV/PASSWORD/FX/PG2/PG3/STACK (Read the MATE portion of this manual for more info)

***For 3-phase stacking a jumper must be set to the 3-ph position in the HUB. See HUB manual for further information.

STACK PHASE

Stack phase establishes which FX is the master and which FX’s follow the master’s commands. Select the stack phase that suits your system whether it’s a parallel 230 vac, or 3-phase 230/400 vac system.

1-2 PH MASTER

1-2 PH MASTER is used for stand alone FX units OR as the MASTER of a single phase system. Set the stack phase of the FX you want as the master to “1-2 PH Master” (default) and make sure it is in port 1 of the HUB. The “1-2PH MASTER” FX is always considered to be the L1 phase where the hot AC lines are colored black.

CLASSIC SLAVE

Not recommended for “EXPORT” FX’s.

OB SLAVE L1

Set the stack phase of the FX you want as the slave to “OB Slave L1” and make sure it is in port 2 or higher of the HUB. OB Slave L1 is used for FX’s that run in parallel with the master. The “OB SLAVE L1” FX is considered L1 phase where the hot AC lines are colored black.

OB SLAVE L2

Not recommended for “EXPORT” FX’s.

3PH MASTER

Set the stack phase of the FX you want as the master to “3PH Master” and make sure it is in port 1 of the HUB. 3-phase systems have a maximum of 3 inverters (one master and two slaves). Each FX acts independently and cannot help out other phases. The HUB has a jumper on it that needs to be changed for 3-phase stacking. The “3PH MASTER” FX is considered phase A where the hot AC lines are colored black.

3PH SLAVE

Set the stack phase of the two FX’s you want as the slaves to “3PH SLAVE” and make sure they are in ports 2 and 3 of the HUB. There are no selections within the MATE to differentiate between phase B or phase C. When you set the jumper in the HUB for 3- phase, the HUB tells each slave which phase they are. The“3PH SLAVE” on HUB port 2 is considered phase B where the hot AC lines are colored red. The “3PH SLAVE” on HUB port 3 is considered phase C where the hot AC lines are colored blue.

Stack Phase

Mate Label

What it means

0

1-2 PH Master

I am the master!!! Put me in port 1 of the hub

1

Classic Slave

Not recommended for “EXPORT” FX’s.

2OB Slave L1 In parallel with the master.

3OB Slave L2 Not recommended for “EXPORT” FX’s.

4

3PH Master

I am the master in a 3 phase system!! Put me in port 1 of the HUB and switch the jumper in the HUB.

5

3PH Slave

1st slave (port 2 of hub) 120 degrees out of phase of master. 2nd slave (port 3 of hub) 120 degrees

 

 

out of phase of first slave.

POWER SAVE LEVEL MASTER ADJUST ONLY

Read “power save level slave adjust only” first!

POWER SAVE LEVEL SLAVE ADJUST ONLY

In OutBack Stacking, slave FX’s can go to sleep (turn off their outputs) when the AC loads are low. Sometimes, half of the FX’s need to be running because half of your appliances are on. How does the master FX know how many slave FX’s and which ones to turn on for the proper load? All the slave FX’s get assigned a rank from 1 to 7. If the master sees more than 5 amps AC of load, it asks for help from the 1st ranking slave. At this time, because there are two FX’s on, the load for each FX will be about 2.5 amps AC. The two FX’s are sharing the load equally. If the load increases and reaches 5 amps AC to the master (10 amps AC total), the master will ask for help from the 2nd ranking slave. The 2nd slave turns on and now 3 FX’s are sharing the load (about 3.5 amps AC each and about 10 amps AC total). By ranking the slave FX’s, the master can control the flow of the system and keep idle power (the current draw of the FX) to a minimum. The way to rank the slaves is called “power save level slave adjust only”. The number you program for each FX is the slave rank and the master will know which FX to turn on next.

POWER SAVE LEVEL MASTER ADJUST ONLY

This setting is a manual selection of what slave FX’s you want on. From the factory the setting is zero and no slaves will be on until the master needs help. If you set this number to 1, the 1st ranking slave (power save level slave adjust only – 1) will be on regardless of the loads on the system. If you set this number to 2, the 1st and 2nd ranking slave (power save level slave adjust only - 2) will be on. I think you get the picture. Up to rank 7 can be selected. Remember that if you set this number, your idle power can’t go as low as possible.

“Power save level master adjust only” is useful when you’re working out in the shop and you want everyone helping out before the master asks for them. It is also used to test the “Power Save Level Slave Adjust Only” programming when first setting up the system to make sure that all the FX’s are stacked properly.

Installation & Programming Manual

FX & VFX “E” Series Inverter/Charger System

Copyright 2003  OutBack Power Systems, Inc.

 

 

19009 62nd Ave NE, Arlington WA 98223 USA

Page 24

Rev 7.0

07/02/04

Tel 360 435 6030 Fax 360 435 6019