SENS EnerGenius® DC Compact Technical Manual
17
Table 8
–
Alarm Relay Contact Wiring for Stationary Power Configuration
Wire from COM to OK for alarm present on open circuit or from COM to FAIL for present on closed circuit.
RELAY 1
Non-latching Coil
RELAY 2
Non-latching Coil
RELAY 3
Latching Coil
RELAY 4
Latching Coil
RELAY 5
Latching Coil
Relay
Contacts
Summary
Alarm*
AC Fail and
Charger Fail
Battery
Discharging
Alarm
High DC Alarm
Low DC Alarm
Common
COM (TB1-1)
COM (TB1-4)
COM (TB1-7)
COM (TB1-10)
COM (TB1-13)
Open on
alarm
OK (TB1-2)
OK (TB1-5)
OK (TB1-8)
OK (TB1-11)
OK (TB1-14)
Close on
alarm
FAIL (TB1-3)
Defaults to FAIL
with no AC and
DC power
(normally closed)
FAIL (TB1-6)
Defaults to FAIL
with no AC and
DC power
(normally closed)
FAIL (TB1-9)
FAIL (TB1-12)
FAIL (TB1-15)
*Summary alarm includes AC Fail, Charger Fail, Battery Discharging, High DC and Low DC alarms.
Functions and operation assigned to each relay are typical. Different functions and assignments are available
both from the factory and by reassignment using the SENS Setup Utility.
6.6.
Optional High Current Relay Connections
Optional high current relay assignments are custom configurable using the SENS Setup Utility. Alarm
circuits are rated 5A at 120VAC. Connect external wiring to the respective terminals on the pluggable
terminal block in the charger (see Figure 5). To make wiring easier, the terminal block unplugs from the
header. Pull terminal block straight out from header to remove. Connect wires to terminal block by
tightening screws at each position. After wires are connected, plug terminal block securely back into
header. Wire from FAIL or OK to COM depending on whether the alarm should be present on an open or
closed circuit (See Table 9). The terminals accept 26-12 AWG (0.14-4.0 mm
2
) conductors. Tighten
connections to 5.5 Lb-In (0.62 Nm) using a small slotted driver. Route alarm wiring at least ¼ inch (6 mm)
away from DC wiring, charger input AC wiring, low voltage wiring, communication wiring, and the circuit
board.
Figure 5
–
Optional High Current Relay Connections
(TB1 - pins 1-6 shown)
