Revolution RV16, Руководство по установке и эксплуатации, Страница: 30 / 60

MAN-000037-00 REV C
29
Basic Charge Cycle Operation
Figure 19: Typical charge cycle – charge modes
The typical charge cycle for conventional and opportunity chargers consists of the first four modes
(TR, CC, CV, FI) on a daily basis, with all five modes (TR, CC, CV, FI, EQ) occurring on a weekly
basis. The typical charge cycle for fast chargers consists of the first three modes (TR, CC, CV)on
a daily basis, with all five modes (TR, CC, CV, FI, EQ) occurring on a weekly basis. A brief
description of the various modes is listed below and all modes are shown above in Figure 29.
Trickle: Trickle mode is rarely used, as it is typically only encountered when a battery is extremely
discharged (average cell voltage of <1.85 volts). This mode charges the battery at a very low
current (typically ~3% of Ahr capacity) until the battery voltage rises above the trickle voltage
setting.
CC: CC mode is where the bulk of the battery charging occurs. This mode is the Constant Current
mode where the current is held steady at ~15%-50% of the battery capacity. This mode continues
until the battery voltage rises to an average cell voltage of ~2.4 volts (CV voltage), and the charge
cycle then transitions into the CV mode. This voltage is partially inflated above the true battery
voltage due to the fact that current is being pushed into the battery and the internal battery
resistance causes the battery voltage to artificially rise above the resting battery voltage.
CV:
CV mode ensures the battery rises to ~95% charged. This mode holds the voltage of the
charge steady at approximately 2.4 volts per cell and allows the current into the battery to taper off
as the battery voltage gets closer to holding itself at the set voltage. The current will continue to
taper off until it reaches the CV Finish Current, at which time the charge cycle will terminate,
unless finish is enabled. If Finish is enabled, the current will continue to decrease until it reaches
the Finish Current, at which time the charger will transition into Finish mode.
Finish: Finish mode will hold the current into the battery constant, and the battery voltage will
slowly rise. The charge cycle will terminate when one of three conditions exists: The charger has
been in the finish mode for the full duration of the finish timer, the Finish dv/dt is reached, or the
Finish Voltage is achieved. The Finish dv/dt is reached when the battery voltage rises less than the