Product Manual

Page 38
© 2013 Magnum Energy, Inc.
Opera t ion
3 .9 I nve rt e r Fan Operat ion
The inverter contains two internal cooling fans that are automatically controlled. The speed of
these fans is determined either by the internal temperature of the inverter or by the load on the
inverter. The inverter’s fans will come on under the conditions listed below:
• Fans run full speed if the internal transistors (FETs) or the power transformer reaches 80°C
(176°F), or the inverter is running at 100% of its rated load.
• Fans run medium speed if the internal transistors (FETs) or the power transformer reaches
60°C (140°F), or the inverter is running at 50% of its rated load.
• Fans run low speed when the inverter is running at 25% of its rated load.
The fans shut down when none of the above conditions are met, or if the battery voltage is below
19.0V (24-volt systems) or 38.0V (48-volt systems).
Whenever the inverter is fi rst connected to the battery, the fans start for about one second. The
inverter’s fans will not start based on temperature sensed by the optional BTS.
3 .1 0 Using a Re m ote w it h t he M S- PE Serie s I nver t er
The MS-PE Series inverter is a Level 4 inverter, which means it can communicate with any Magnum
remote (ME-RC, ME-ARC or ME-RTR) to allow the advanced features in the remote to be set up
or enabled.
Table 3 - 3 , I nverter Com patibilit y Le vel
I NV/ CH G
Mode ls
Level 1
( L1 )
Level 2
( L2 )
Level 3
( L3 )
Level 4
( L4 )
MS4124PE NA NA NA ≥ Rev 5.5
MS4348PE NA NA NA ≥ Rev 5.5
3 .1 0 .1 Re m ot e Com patibilit y
Older remote revisions will work with the MS-PE Series. However, to view the correct 230 VAC
readings and settings, the following remote revisions are required.
Table 3 - 4 , Rem ot e Com patibilit y Level
Re m ot e M odels Re vision Re quired
ME-RC ≥ Revision 2.7
ME-ARC ≥ Revision 2.4
ME-RTR ≥ Revision 3.0