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5.4
Power Supply
The HAR42-4 subrack provides the 24V supply voltage for the amplifier modules.
The mainframe is fed by mains voltage.
5.5
Ventilation
The HAR42-4 subrack is equipped with fans on the rear panel. Air intake is below the front panels.
Sufficient space must be allowed for cooling air to reach the ventilation inputs and for the fan exhaust
air to exit from the rear of the unit.
The speed of the fans is controlled automatically by the temperature of the amplifier modules.
5.6
Functional Test
Before the device is finally put into operation in a setup, a short functional test is to be carried out.
It is necessary that the interlock circuit is closed.
1.
Make sure that the supply voltage is disconnected.
2.
Remove all input signal cables and the output cable from the device.
3.
Connect the terminals +24V_IL (X1.2) and IL (X1.3) by means of a wire link.
4.
Connect the terminals DISABLE (X1.4) and GND (X1.5) by means of a wire link.
5.
Connect the mains supply voltage.
6.
Switch on the Power switch.
7.
Release the HV off palm button.
8.
The Power switch and HV off button will light up, Enable LEDs will light up,
IL, Overload and Overtemp LEDs will flash.
9.
Push the SDN Reset push button.
10. The IL, Overload and Overtemp LEDs will turn off, the HV ok LEDs will light up.
11. Push in the HV off palm button.
12. The HV off button and HV ok LEDs will turn off, the IL LEDs will light up.
13. Open the interlock bridge at X1.
14. Release the HV off palm button.
15. The Interlock LEDs will light up continuously.
16. Press the SDN Reset push button.
17. The interlock status remains unchanged and the high voltage cannot be switched on.
18. Turn off the supply voltage.
hivolt.de GmbH & Co. KG
Oehleckerring 40
D-22419 Hamburg
∙
Germany
+49 40 537122-0
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+49 40 537122-99
info@hivolt.de
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13
www.hivolt.de
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