Micha Solar
MSRx Charge Controller
User Operation Manual
Page 20 of 46
Document: 802440-30.doc
Date: December 2020
www.micha.co.uk
5.2. Menu A – Change Settings
Menu A
Screen Change Settings Description
Change Settings:
Boost V: 28.2V
0
Boost Regulation Voltage
Change Settings:
Float V: 27.4V
1
Float Regulation Voltage
Change Settings:
Rst to Bst:25.3V
2
Reset to Boost Voltage
Change Settings:
HV1 Set V: 28.8V
3
High Volts 1 Alarm Set (Activation) Voltage (see section
Change Settings:
HV1 Rst V: 25.8V
4
High Volts 1 Alarm Reset Voltage (see section
Change Settings:
LV1 Set V: 22.8V
5
Low Volts 1 Alarm Set (Activation) Voltage (see section
Change Settings:
LV1 Rst V: 27.0V
6
Low Volts 1 Alarm Reset Voltage (see section
Change Settings:
LC1 Set V: 22.2V
7
Load Cut 1 Alarm Set (Activation) Voltage (see section
Change Settings:
LC1 Rst V: 27.0V
8
Load Cut 1 Alarm Reset Voltage (see section
Change Settings:
LC2 Set V: 21.6V
9
Load Cut 2 Alarm Set (Activation) Voltage (see section
Change Settings:
LC2 Rst V: 24.6V
10
Load Cut 2 Alarm Reset Voltage (see section
Change Settings:
LC1 Delay: 10sec
11
Load Cut 1 Delay (5 to 240 seconds)
Time between LC1 Alarm activated and Load 1 disconnected
Change Settings:
LC2 Delay: 10sec
12
Load Cut 2 Delay (5 to 240 seconds)
Time between LC2 Alarm activated and Load 2 disconnected
Change Settings:
Equalisation 30m
13
Equalisation Period (1 to 90 minutes)
Change Settings:
MSRx: Version 2
14
MSRx Control PCB Assembly Hardware: (Default: Version 2)
Version 1 = 400327, Version 2 = 401764, 19” Rack = 400766
Change Settings:
No of Arrays: 4
15
Number of Array Inputs: 1-8
e.g. 8 = MSRx8 = 8 stage Charge Controller