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14 | Operations Manual
BMS Error / Fault Parameter reference notes:
1. System operating temperature should be 20-35°C. Start of charge temperature window is 15°C to 40°C. Once
charge started there are no limits just Fault at 85°C.
2. Critical values are for voltage divider readings therefore they are ¼ the full module voltage.
3. N/A
4. Defined in later section.
5. If the UPS voltage is too low on charge the system will undercharge the batteries and not indicate a normal end
of charge. To mitigate this, if there has been enough charge to indicate: ADAh is < 0, And Current is < 4A And the
EOC Voltage threshold is not met, then the system should exit charge, indicate EOC and issue a Warning.
6. Minimum current limits are exceeded, shall have persistence of 2s for Current < -800A AND > -1000A. Current
<-1000A is Critical Alarm and requires an instantaneous trigger.
7. Emails are to be transmitted for errors and critical alarms.
Battery Management System
The BMS consists of a main processing Unit (M800) and several Secondary Processing Units (S48).
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The M800 is the master control module for performing real-time monitoring of the ZincFive Nickel-Zinc
batteries.
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The S48 is a secondary module which has direct connections to the batteries monitoring voltage,
temperature State of Charge (SOC) and State of Health (SOH)
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The R3000 module provides for remote monitoring of the BMS and battery status.
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See: 5 Web Interface
Checking data via USB
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This can provide 1-2 month’s worth of logging data from batteries.
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The activity indicator/LED on the USB Stick will stop flashing when the data is downloaded.
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The download can only be completed by using a USB flash drive. (1GByte Flash drive minimim.)