Phocos MPS45, User Manual

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Mounting and Connecting
MPS is intended for indoor use only. Protect it from direct sunlight and place it in a dry
environment. Never install it in rooms with elevated humidity (bathrooms, etc.).
The controller warms up during operation and should therefore be installed on a non
flammable surface only.
Using MPS as a DC load switch for deep discharge protection (Chapter 1, page 24)
Using MPS as a photovoltaic charge controller (Chapter 2, page 29 )
Using MPS as a wind-/hydro generator charge controller (diversion control)(Chapter 3, page 35)
There are 3 different possible applications for using the MPS as stand-alone unit:
This chapter describes how to set up and install your MPS as stand-alone DC load switch with
deep-discharge protection and the available features when performing this duty.
As a stand-alone unit, MPS provides you five voltage thresholds (LVD1 to LVD5) for disconnecting
DC loads when battery state of charge becomes low.
Several independent MPS units can also operate in the same system, providing up to the nominal
current of each individual MPS unit to several different loads.
Do not use multiple MPS units in parallel to provide higher current to a single load in stand-
alone systems without the use of optional accessory MCU. This is only possible by using MPS
together with MCU (see MCU manual).
1.1 MPS features:
Battery System Voltage Detection
MPS can be used in 12 V, 24 V, 48 V battery systems. The nominal system voltage is detected
automatically when connected to the battery bank.
1. Using MPS as a DC Load Switch with Deep-Discharge Protection
Recommendations for Use
The MPS controller warms up during normal operation. If there is insufficient ventilation
(e.g. in a cabinet), the controller has built-in overheating protection.
The MPS controller does not require any maintenance or service. Remove any dust with a
dry tissue.
It is important that the battery bank achieves fully charged status frequently (at least once
per month). Otherwise the battery may be permanently damaged.
A battery can only be fully charged if the average energy consumption of all loads is clearly
less than the average charging energy.
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