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F04-019-006
006
MODEL NO: 3104
INTERCONNECT CONTROLLER
12V,300A
SPECIFICATION OUTLINE
3104
3104-006
Delay Mode Jumper (DMD) - Pin E
This is the jumper to set the length of the disconnect delay. Left unconnected this terminal sets a 10s disconnect
delay. This terminal sets a 5 minute delay when connected to ground. This input is only checked when power is
initially applied.
Alarm Output (ALRM) - Pin C
This output is for an optional alarm. The output will be pulled low and sinks current when the unit is in the delay
pending a solenoid open. The output remains low if the solenoid opens and turns off once the solenoid is closed
again. In LVD mode, the operator can either tie the other side of the alarm to the battery side or load side of the
solenoid to have the alarm remain on or shut off with the loads. This output is limited to 50mA ±5mA.
Bi-directional Mode Jumper (BMD) - Pin A
This is the jumper to set unidirectional or bi-directional mode. Left unconnected this terminal sets unidirectional
mode. Connected to ground this terminal sets bi-directional mode. This input is only checked when power is
initially applied to the unit.
FUNCTIONAL DESCRIPTION
Note: All values are approximate; see device specification section for exact values and tolerances.
When power is applied to the unit, the unit will default to the open state. The mode jumper inputs are read at this time. The unit
then operates in automatic mode.
AUTOMATIC MODE:
1. BMD pin not grounded:
If the BMD pin is not grounded, the state of the unit is dependent upon the voltage on the SBAT terminal. If the RCM pin is
grounded and the SBAT terminal remains above the connect threshold for 2.5s, the solenoid will be closed. If the SBAT
terminal remains below the disconnect threshold for 10s (DMD pin open) or 5 minutes (DMD pin grounded) the solenoid will
be opened. When the SBAT voltage is between the connect and disconnect thresholds, the solenoid will maintain it’s state.
2. BMD pin grounded:
If the BMD pin is grounded, the state of the unit is dependent upon the voltage of both the SBAT terminal and the ABAT
terminal. If the RCM pin is grounded and either the SBAT or the ABAT terminal is above the connect threshold for 2.5s, the
solenoid will be closed. If the SBAT terminal is below the disconnect threshold for 10s (DMD pin open) or 5 minutes (DMD
pin grounded), the solenoid will be opened. (Once the solenoid is closed, the two batteries should be equal in voltage.) If
both inputs are between the connect and disconnect thresholds, the solenoid will maintain it’s current state.
MANUAL MODE:
Grounding the ISW input toggles the state of the solenoid and switches the unit into manual mode. The unit will remain in the
new state for 75 seconds. At the end of 75 seconds, the unit returns to automatic mode. The falling edge (i.e. switch closing
operation) of the ISW input places the unit in manual mode; holding the ISW input at ground does not keep the unit in manual
mode. (Note: If the voltage is between the connect and disconnect threshold the unit will maintain the state it is in. It does NOT
revert to the state is was in before manual mode was entered.) The 75 seconds is measured from the last falling edge of the ISW
input to the solenoid operation. In the remaining seconds of the MANUAL MODE delay, the inputs are scanned and solenoid will
either close, open, or remain in the same state according to the default program.
DISCONNECT LOCKOUT:
A grounded input from an engine run source such as the oil pressure switch can be
connected to the Lockout input to provide a lockout for disconnects. Whenever the
Lockout input is grounded, the solenoid will close if it is open and will not open for
either low voltage or a ground signal on the Switch input. If the unit was placed in
MANUAL MODE before grounding the lockout pin, the 75-second delay must
timeout before lockout mode takes precedence. After the Lockout input is opened,
the unit returns to automatic mode.
