Lenel LNL-3300-M5, Installation Manual

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LNL-3300-M5 Intelligent System Controller
46 —
revision 7
9.2 Input Power, Enclosure Tamper, and Power Fault Input Wiring
The LNL-3300-M5 requires 12 VDC power, 3 A minimum. Depending on system configuration, a larger
power supply may be required.
There are three pairs of connections for power, all are in parallel. If needed, the other two pairs can supply
power to other I/O boards.
Connect the in12 VDC power to TB1-3, and ground (12 VDC return) to TB1-4. Locate power
source as close to the unit as possible. Connect power with minimum 18 gauge wire.
Input Power, Enclosure Tamper, and Power Fault Input Wiring
Notes: Connect the GND signal to earth ground in one location within the system. Multiple earth
ground connections can cause ground loop problems and are not recommended.
Observe polarity on 12 VDC input.
There are two dedicated inputs for cabinet tamper (TMPR) and UPS fault monitoring (PFLT). Normal (safe)
condition is a closed contact. If these inputs are not used, install a jumper wire.
Figure Input Power, Enclosure Tamper, and Power Fault Input Wiring Callouts
Callout Description
1 12 VDC power supply; 3 A minimum
2 TB1 terminal block on LNL-3300-M5
3 +12 VDC input power connection
4 Ground (12 VEC return) connection
5 Enclosure tamper and power fault input wiring connections
1
2
3
4
5
GND
VIN
TB1
VIN
1
GND
GND
VIN
PFLT
TMPR
+
-
8
3
4