Curtis 1620 Manual
page 12
Curtis 1620 Manual
page 11
Programming mode
Description
Programming
Limits
Default Value
Increment
Accuracy*
Definition
BASIC MODE
2
Battery Type
1 or 2
1
1
1
-FLA: Float voltage is set to 26.8V, Constant voltage set to 29V.
2
-SLA: Float voltage set to 27.6V, Constant voltage to 29.4V
End of Charge
1, 2, or 3
1
1
1
-OFF: Charger goes into standby. Charger will cycle to recharge the battery as
determined by
Vrst
and enter standby at the end of the charge cycle.
2
-EQUALIZE: Charger adjusts its output current to
Ito
, and drives the battery to
Vequ
.
It has the time allotted by
Tto
to do this or a fault will occur. An EQUALIZE cycle is
completed only once. Once the cycle is complete, it changes to the previous setting for
EoC Mode until the next time the EQUALIZE mode is selected.
3
-FLOAT: Charger goes into standby upon entering EoC Mode, and remains in standby
until the battery reaches
Vfloat
. At this point the charger turns on and maintains
Vfloat
until power is recycled.
ADVANCED MODE
Constant Current (
Icc)
10-20A
20A
0.5A
+/- 3%
Current used to charge the batteries during normal (bulk charge) operation. This current
is used when the battery voltage is greater than, or equal to
Vlv
, and less than
Vcv
.
Constant Voltage Level
(
Vcv)
26-30V
29V
0.1VDC
+/- 1%
Battery voltage maintained by charger during bulk charge. This voltage is maintained by
continuously dropping the output current, until
Veoc
is reached.
Low Voltage Current
(
Ilv)
2-10A
6A
0.5A
+/- 5%
Current used to recover deeply discharged batteries; this current is used when the battery
voltage is greater than or equal to
Vuvlo
, and less than
Vlv
.
Top-off current
(Ito)
2-10A
6A
0.5A
+/- 5%
Current used to Equalize the batteries.
End of charge ("soft" overvoltage)
(
Veoc)
29-35V
31VDC
0.1V
+/- 1%
Charger goes into "soft" overvoltage mode, from which it recovers when battery voltage
drops below
Vrst
.
EoC Threshold (
Icv)
2-20A
4A
0.5A
+/- 3%
Current at which the charger transitions to EoC mode.
Restart Voltage (
Vrst)
22-28v
26VDC
0.1V
+/- 1%
Used when EoC Mode is EQUALIZE or OFF; the battery voltage at which charger
automatically turns on and recharges the battery. Charger must be in stand by mode when
this voltage is detected; the charger will charge the battery until it reaches
Vcv
and then
enter stand by mode.
Bulk Charge Threshold
(
Vlv)
0-26VDC
24VDC
0.1VDC
+/- 1%
Battery voltage at which the charger switches from
Ilv
to
Icc
.
Low Voltage Lockout
(
Vuvlo)
4-21VDC
5VDC
0.1VDC
+/- 1%
Battery voltage below which the charger will not turn on.
Equalize Voltage (
Vequ)
29-33V
31VDC
0.1VDC
+/- 1%
Used when EoC Mode is EQUALIZE. The voltage at which the EQUALIZE mode is
ended, unless the mode ends by reaching
Tto
.
Float Voltage (
Vfloat)
25-30V
26.8V
0.1VDC
+/- 1%
Used when EoC Mode is FLOAT. Once the battery voltage drops to this set point, the
charger will turn on and stay on, maintaining this battery voltage.
Low Voltage Timeout (
Tlv)
1-10hrs
1 hour
1 hour
+/- 5min
If battery does not reach
Vlv
within this timeout period, an error is indicated.
Equalize Timeout (
Tto)
0-5hrs
2 hours
1 hour
+/- 5min
Used when EoC Mode is EQUALIZE. Number of hours charger is kept at equalization
current, unless the mode is ended by reaching
Vequ
.
Maximum Charge Time
(
Tcmax)
2-36hrs
16 hours
1 hour
+/- 1hr
The maximum amount of time the charger has to complete a charge cycle and enter
standby mode. Failure to complete charge in the allotted time will result in a fault mode.
1 Accuracy is calculated as percentage of the maximum setting.
2 Items in bold are as they appear in the display of the 1311 handheld programmer.
Table 1. Programming Parameters
