Battery Over-Voltage Protection:
Activates over-voltage procedure if battery voltage is more than three times per second higher
than 15.5 V in 12 V systems, 31 V in 24 V systems or 62 V in 48 V systems. Optional accessory
MCU can adjust this parameter.
Charge current in %
of nominal current
Action
Temperature-controlled current reduction by PWM. (If power electronic
temperature is below 80 °C (176 F), no limitation of current occurs).
Charge current reduction by PWM to < 100 % and temperature controlled
current reduction.
Switches off, waits for one minute and tries again
Overtemperature Protection:
Possible failure reason
Defective battery
Action
Reduces charge voltage. If this does not correct the issue, charging
stops and LED indicates a failure(tries charging again one minute later)
If after charging stopped failure disappears, MPS starts a new procedure.
Night Detection
Three-LED Status Display
Manual Setting by DIP Switches
Additional features available if MPS is used together with Phocos Modular Control Unit
MCU (see MCU manual )
Discharge current protection at night by FET switch off.
Panel open circuit voltage measured during day and night.
33
<110%
110% to 150%
>150%
PCB temperature Action
Switches off charge current
Reduces charge current by applying PWM to keep temperature below
90 °C (194 F)
Normal charge function
>95 °C
80 °C (176 F) to
90 °C (194 F)
< 80 °C
Yellow LED
MPS ready
Green LED
MPS FET is on
Red LED
Failure
EN
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