Blue Sea Systems PN 7600 プリント

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Manually Connect and Disconnect Battery Banks
A control switch such as a Blue Sea Systems Switch Panel PN 8270 may be 
used to manually connect and disconnect battery banks by overriding the CL-
Series BatteryLink™ ACR voltage sensing circuit.
•  Connect Terminal 2 to the center common terminal of a ON-OFF-ON single  
  pole, double throw switch.
•  Connect negative and positive to the outside terminals of the switch.
To connect a manual override switch:
•  When Terminal 2 is switched to the positive supply, the relay is closed  
 
  whenever the voltage is greater than about 9 volts at either terminal.
•  When Terminal 2 is switched to the negative supply line, the relay is held  
 open.
•  When the switch is in the center position, the CL-Series BatteryLink™ ACR  
  operates automatically to close and open the relay when it senses the  
 
  presence of charging voltages. The control signal to Terminal 2 passes very  
  little current and can be supplied from any fused positive source.
Remote LED indicator
If you want to be able to determine at a remote location when the battery banks 
are connected, a remote LED indicator can be connected to the CL-Series 
BatteryLink™ ACR.
•  Connect the red wire of the LED to a positive source.
•  Connect the yellow wire of the LED to Terminal 4.
To connect an LED indicator:
Suitable LED indicators are Blue Sea Systems 8033 (amber), 8171 (red), or 8172 
(green).
When all wiring is complete and has been checked, restore battery connections. 
The relay may momentarily energize when power is fi rst applied. The automatic 
charging circuit has a time delay of approximately one minute to reduce cycling 
caused by noise in the system.
Indicator Lights
There are three LED indicator lights on the CL-Series BatteryLink™ ACR:
•  UNDERVOLTAGE
•  COMBINED
•  OVERVOLTAGE
The amber UNDERVOLTAGE indicator lights when:
•  There is no charging source present
•  The voltage level of the sensed battery is less than the COMBINED value
•  There is a charging source on one battery and the other battery is less    
  than 4 volts.
The UNDERVOLTAGE indicator is normally on when the batteries are being 
discharged. When the UNDERVOLTAGE indicator is on, the battery banks are 
disconnected in approximately one minute.
12.2
11.5
14
13.2
12.6
11.9
13.0
12.3
13.5
12.7
13.5
15.5
14.0
14.5
15.0
Combining Adjustment 
(close/open)
Overvoltage Adjustment 
(open)
The COMBINED potentiometer adjusts the COMBINED voltage to the user’s 
preference. Changing the COMBINED setting automatically changes the OPEN 
voltage as well because the OPEN voltage is fi xed at 6% below the COMBINED 
voltage.
The OVERVOLTAGE potentiometer is used to adjust the voltage at which the 
CL-Series BatteryLink™ ACR switch opens in response to high voltage. This is a 
protection feature when one battery needs to be charged at a lower voltage than 
the other. It also protects the second battery bank in the event of an overvoltage 
condition produced by the alternator.
The potentiometer adjustment range covers about 270 degrees of rotation. Do 
not use excessive force - this adjustment requires only a little torque within the 
rotation range; it should not be forced beyond the end stops. If you do want to 
make an adjustment, note the orientation of the screwdriver as you adjust. There 
are end stops at approximately 4 O’clock and 8 O’clock and it may be necessary 
to turn gently to fi nd those stops and then return to the intended adjustment.
Some high current chargers in inverter/charger systems drive very high current 
pulses into the system. The average voltage may be in range, but the peak 
voltages may cause the OVERVOLTAGE light to come on. Connecting the CL-
Series BatteryLink™ ACR negative connection and positive connection directly 
to the batteries can reduce the effects of voltage drop in the wiring and prevent 
these chargers from interfering with the CL-Series BatteryLink™ ACR. It may be 
necessary to adjust the OVERVOLTAGE setting up to its maximum value if such 
a charger is driving a smaller battery system that does not readily accept this rate 
of charge.
Undervoltage Lockout
The voltage sensing circuits in the CL-Series BatteryLink™ ACR prevents the 
relay from automatically closing if either sensing terminal is connected to a 
voltage source at a voltage less than 4 volts.
Emergency Starting
The CL-Series BatteryLink™ ACR is designed for automatic control for charging 
dual battery banks. When it is manually closed, it allows a starting battery to 
be supplemented by the house battery. However, this use should be limited 
to smaller engines. Even occasional use to connect both battery banks for 
emergency starting may overstress the relay contacts and reduce life. The CL-
Series BatteryLink™ ACR current limiting system permits high peak currents 
for a few seconds, which may be adequate to start a small diesel or a small to 
medium sized gasoline engine in good working condition. Also, starting currents 
may exceed the capacity of the CL-Series BatteryLink™ ACR’s current limiting 
capability, which causes the protective circuit to temporarily open.
Many battery management systems include a manual emergency cross connect 
battery switch or a “1-2-Both” battery switch. If either of these are available, it is 
preferable to use that device for emergency engine starting.
If the voltage on Terminal A or Terminal 1 remains high enough for approximately 
one minute, the green COMBINED indicator lights, the relay closes, and the 
battery banks are connected.
If the voltage exceeds the OVERVOLTAGE setting, the red OVERVOLTAGE 
indicator lights and, after a few seconds delay, the green indicator goes out. 
When the OVERVOLTAGE indicator is on, the battery banks are not connected.
To facilitate adjustment of the CL-Series BatteryLink™ ACR voltage settings, 
OVERVOLTAGE and UNDERVOLTAGE indicator lights operate without a time 
delay. However, the relay closure only occurs if the voltage is in range for the 
period of the time delay.
Adjusting Voltage Settings
The CL-Series BatteryLink™ ACR is preset at the factory for COMBINED 
voltage, UNDERVOLTAGE, and OVERVOLTAGE values that are consistent 
with typical charging systems and fl ooded lead acid batteries. COMBINED and 
OVERVOLTAGE have default settings of 13.5V and 15.0V respectively. The 
triangles (    ) on the product label show the normal settings for conventional 
charging service. For most systems, no adjustment is necessary.
These values can be changed to meet your specifi c needs. For example, some 
batteries such as Gel Cell and AGM are sensitive to overcharging so you may 
want to set OVERVOLTAGE lower than nominal. Also, if the ACR is used to 
control loads, COMBINE and OVERVOLTAGE can be set downward to shut off 
appliances to reserve capacity for starting, navigation, and communication.
Installation Instructions 
(continued)
Operation
Remote LED
Battery Negative
Manual Switch, ON-AUTO-OFF
Remote Sense for B-Battery
1
2 3 4
The CL-Series BatteryLink™ ACR has two potentiometers to adjust these 
settings to the user’s preferences.