BATTERY CHARGER USER’S MANUAL PART- 2: THEORY OF OPERATION
MCEnPC23-REV.2.4 Page 81
8. CURRENT TEMPERATURE COMPENSATION « OUTPUT
CURRENT DERATING » (OPTIONAL)
Current temperature compensation function can be enabled or disabled in Level 2. When enabled, in order to protect
all power components, the rectifier output current will be de-rated by a preset % (ex. 1%/°C/A) if the inside
temperature exceeds a preset value (ex. 40°C).
Example-1:
Current Limit = 150A
Preset Temperature = 40 ºC
Compensation percentage = 1%//ºC/A
Actual internal Temperature = 60 ºC
New Current Limit value =
A120
100
1504060
150
Compensation current in case of loss an AC Phase (optional):
This compensation is also enabled or disabled in Level-2. When enabled, in order to protect all power components,
the rectifier output current will be de-rated by a preset % (ex. 34%) in case of loss of a phase.
Exemple-2:
Current Limit = 150A
Compensation percentage = 34%
If one phase is lost, the new current limit value will be set automatically at:
New Current Limit value =
A99
100
15034
150
9. REMOTE SENSING
Remote sensing function regulates the DC output voltage at the battery terminals instead of battery charger DC
output terminals. It compensate for voltage drop in the DC wiring between the battery charger and the battery. The
LCD display shows constantly the actual voltage at the battery terminals.
For remote sensing wiring, follow instructions on electrical schematic.
DANGER!
There are LIVE TERMINALS and components inside the battery charger even after turning OFF AC
and DC breakers.
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