Onicon System-10 P1 Manual do Utilizador descarregar pdf (Página 17)

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System-10-P1 Manual 10/14 - 0656-9 / 18320 Page 17

OPERATING FROM 24 VAC POWER

The SYSTEM-10 BTU Meter can be congured to operate from 24 ±4 V 50/60 Hz power.

Connect the 24 volt power source to the System-10 using the pre-drilled conduit or strain

relief opening located at the bottom of the enclosure. Do not connect the 24 volt source

until all signal connections have been made and veried. Connect 24 VAC wires to the

appropriate screw terminals as shown. Connect the protective earth wire as shown. Do not

exceed 13 in-lb (1.5 Nm) of torque when tightening.

As power is initially applied to the System-10, immediately conrm that the power light is

illuminated and the display is scrolling through the character diagnostic test. The test will

begin by indicating the letter P in every position followed by a countdown from 9 to 0 for

each digit. If this does not occur, disconnect power immediately and re-verify all wiring

connections. Contact ONICON if the problem persists.

60HZ

J2-1

+15

+24

J2-12

20075-50 REV. A

LED1

VAR1

TB1

20075-50 REV. A

TB1

3/4 AMP

L1 N Not Used

IMPORTANT NOTE

This option is not eld selectable. Contact ONICON if you need to change the input voltage rating.

CAUTION

This product must be connected to earth ground for proper operation. Failure to do so may result

in erratic operation.

Protective Earth

Ground

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Onicon System-10 P1 Manual do Utilizador Página 17