Using a PT Controller: Setup
©
2017 Sensata Technologies
Page 123
Info:
The ME-BMK battery monitor is required if the
CV Chg Done Amps
setting is
used. The
CV Chg Done Amps
setting relies on the
METER: 05C DC Amps-BMK
value to
determine when to transfer out of the Constant Voltage charge mode.
Info:
Setting the
CV Chg Done Amps
value to zero keeps the charger in the Constant
Voltage charge mode until the
Max CC/CV Time
setting (under
SETUP: 07A Battery
Type: CC/CV
) is reached.
□
Set Max CC/CV Char Time
– This setting is a safety feature that ensures abnormal
conditions do not cause the charger to hold batteries at a high voltage for a prolonged
period of time. This menu sets a maximum time the charger is allowed to operate
in either the Constant Current (Bulk charging) or Constant Voltage (Absorb charging)
charge modes. If the charger reaches the
Max CC/CV Time
setting, it will transition to
the Silent charge stage (status is
Float Charging
). The
OFF
selection can be used if there
is an application where 25.5 hrs is not long enough.
Default:
12.0 Hrs
Range:
OFF,
0.1-25.5 Hrs
CAUTION:
If using “
OFF
”, the batteries can be held at a high voltage for an extended
time. Monitor the batteries to ensure they are not overcharged.
Info:
The internal timer for the
Set Max Char CC/CV Time
feature increments when
the battery voltage is above the
Float Volts
setting (from the
SETUP: 07A Battery Type
menu) and resets when the controller goes into Float charging.
□
Set DC Volts to Recharge
– This setting determines the DC voltage set-point to
which the batteries are allowed to fall—while the charger is in the Silent charge stage
(status is
Float Charging
)—before the charger restarts and recharges to the
CV Charge
Volts
setting. This setting should be slightly above the lowest DC volts level to which
you want the batteries to fall. Typically, the lowest DC volts to which the batteries
are allowed to fall is 12.0 to 12.2 VDC (12-volt systems), 24.0 to 24.4 VDC (24-volt
systems), and 48.0 to 48.8 VDC (48-volt systems), respectively.
Default:
12.0 VDC (12v), 24.0 VDC (24v), 48.0 VDC (48v)
Range:
9.0-16.0 VDC (12v), 18.0-32.0 VDC (24v), 36.0-64.0 VDC (48v)
Figure 12-1, CV Charge Done Time/Amps (PT Controller)
Bulk Charging
Absorb Charging
Float
Charging Bulk
Voltage
Current
Max Charge
Amps
Recharge Volts
(restarts CC
stage)
CU
RRE
N
T
&
V
O
L
T
AG
E
TIME
CV Charge
Volts
CV Charge Done
(= Time or Amps)
CC Stage
CV Stage
CC
Silent
CV
Absorb
PT Status
Charge Stage
CC = Constant Current
CV = Constant Voltage
Содержание ME-ARTR
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