RLE LDZ4 - Manual (Page 10)

Chapter 2: Connections & Settings User Guide: LDZ4
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2-1.2 P1 - Power
Power can also be supplied to the unit through P1. This is a wall adapter plug connection.
2-1.3 TB3 - Leak Relay
This is the Leak Relay output terminal block (Form C). A status LED is located above the relay, which
will indicate the state of the relay (on/off). This relay can be configured as supervised or unsupervised,
latched or unlatched. Connect the Leak Relay wires to TB3 as follows:
TB3-1 Leak alarm normally open (NO)
TB3-2 Leak alarm common (C)
TB3-3 Leak alarm normally closed (NC)
2-1.4 TB2 - Cable Fault Relay
This is the Cable Fault Relay output terminal block (Form C). A status LED is located above the relay,
which will indicate the state of the relay (on/off). This relay can be configured as supervised or
unsupervised, latched or unlatched. Connect the Leak Relay wires to TB2 as follows:
TB2-1 Cable fault alarm normally open (NO)
TB2-2 Cable fault alarm common (C)
TB2-3 Cable fault alarm normally closed (NC)
2-1.5 TB1 - Summary Relay
This is the Summary Relay output terminal block (Form C). A status LED is located above the relay,
which will indicate the state of the relay (on/off). This relay can be configured as supervised or
unsupervised, latched or unlatched. Connect the Leak Relay wires to TB1 as follows:
TB1-1 Summary alarm normally open (NO)
TB1-2 Summary alarm common (C)
TB1-3 Summary alarm normally closed (NC)
2-1.6 TB7 through TB4 - Zone 1 through Zone 4 Leak Detection Cable Inputs.
Leak detection cables connect to TB7-TB4 (zones 1-4). A fifteen foot leader cable is provided to connect
the LDZ4 to the Leak Detection Cable(s). Connect the leader cable wires as follows:
(x=7....4)
TBx-1 White wire
TBx-2 Black wire
TBx-3 Green wire
TBx-4 Red wire
2-2 SW1 - RELAYS AND ALARM
2-2.1 SW1, Position 1
Configures the relays as supervised or non-supervised. If a relay is supervised, the
relay picks until power goes off or until an alarm is detected. The alarm then
releases to announce a change in state. A non-supervised relay releases only when
an alarm is detected.
1 = Supervised
0 = Non-supervised (factory default)
2-2.2 SW1, Position 2
Configures the relays as latched or non-latched. If a relay is latched, the relay will
remain in an alarm condition until the Reset switch is pressed. If a relay is non-
latched, the relay will remain in alarm until either the Reset switch is pressed, or the
For all SW Settings:
1 – Switch is on.
0 – Switch is off.