Chapter 5 Use Of Monitoring Module M800D 79
Temperature Compensation Coefficient
The setting range of temperature compensation coefficient is 0 to 2500mV/°C and it should be set according to the
actual battery parameter.
The battery is sensitive to the change of ambient temperature. In order to ensure the battery capacity and life, when
ambient temperature changes, the battery float charge voltage also changes. The Float Charge Voltage is the
normally the voltage when the room temperature is 25°C. The higher the ambient temperature is, the lower the Float
Charge Voltage is, and vice versa. For the battery with 2 V battery cells, the Float Charge Voltage for every cell will
be decreased by 3 to 7mV when the ambient temperature is increased by every 1°C. Therefore, the “Compensation
Factor” for 48V battery shall be set to 72mV to 168mV, and the “Compensation Factor” for 24V battery shall be set to
36 to 84mV/°C.
Charging current limitation parameters
Table 1.6 Charging current limitation parameters
Parameter
Range
Default
Step change
Maximum Charging Current
0.5 C
10
(battery capacity)
0.1C
10
0.01
Lower consumption during high cost
hours enabled
Yes/No
No
N/A
Prohibit Battery Charge during Hi-
cost hours
Yes/No
No
N/A
Default category
LED
Alarm Number
Alarm name
OA
Y
Battery Current Limitation Active
Parameters of low voltage disconnection
Table 1.7 Parameters of low voltage disconnection
Parameter
Range
Default
Step change
Load LVD Enabled
Yes/No
No
-
Battery LVD Enabled
Yes/No
No
-
Reconnection Voltage
-40 to -60V
-52.5V
0.1V
Load LVD Voltage
-40 to -50V
-43.2V
0.1V
Battery LVD voltage
-40 to -50V
-43.2V
0.1V
Load LVD time
0 ~ 6000 min
300 min
1 min
Battery LVD time
0 ~ 6000 min
300 min
1 min
LLVD: The M800D disconnects the LLVD contactor, thus the non-priority load controlled by the contactor will be
powered off so that the battery can power the priority load longer. If the “LLVD Enable” is set to “Yes”(factory setting),
monitoring module will enable the auto LLVD function.
BLVD: The M800D disconnects the BLVD contactor. Thus the battery will not continue to power the load so as to
prevent its life from being reduced due to over discharging. If the “BLVD Enable” is set to “Yes”(factory setting),
monitoring module will enable the auto BLVD function.
Parameters of capacity predication
Table 1.8 Parameter of capacity prediction
Parameter
Range
Default
Step change
Battery Type No.
1 to 10
1
1
Rated Capacity
50 to 5000 Ah
1000
10
Over Current
0.3 to 1.0 C
10
0.30 C
10
0.01
Current Limit
0.10 to 0.25 C
10
0.10 C
10
0.01
Capacity Coefficient
10 to 100 %
96 %
1
Discharge Curve
10 of discharge time for 0.1 to 1.0 C
10
discharge current
5.5.3 Energy Management Parameters
Parameters of lower consumption during high cost hours
Table 1.1 Parameter and alarm for lower consumption during high cost hours
Parameter
Range
Default
Step change
Lower consumption during high
cost hours enabled
Yes/No
No
N/A
Prohibit Battery Charge Enabled
Yes/No
No
N/A
Default category
LED
Alarm Number
Alarm name
OA
Y
Battery Charge Prohibited Alarm
NetSure 501 A50, NetSure 501 AA0, NetSure 701 A51 19-Inch Subrack Power Supply System User Manual
