Nautel NX300, Руководство по установке, Страница: 52 / 70

NX300 Installation Manual Commissioning tasks
Page 10-2 Issue 3.0 2012-11-01
7. Verify that all panels are installed, and ensure that their attaching hardware is firmly
tightened.
8. Connect the dummy load’s interlock or, if necessary, simulate the closing of all external
interlocks. This requires a short circuit between J6-1 and J6-2 of the control/interface PWB.
Ensure all networks connected to the transmitter’s RF output are properly covered.
9. In lieu of normal station programming, connect an analog audio signal generator, preset to
1000 Hz at a zero output level (turned off), to connector J12 on the control/interface PWB,
or an AES signal generator to connector J11 on the control/interface PWB.
Commissioning
Turning on the transmitter
1. Switch on the ac power at the service entrance to turn on the transmitter.
2. Check the alarm and status indications on the control cabinet’s AUI using the
Transmitter
Status
page of the AUI.
3. Check the output of the +5, +15 and -15 V power supplies on the AUI (click
Meters
, then
select
Rack 1
and the appropriate power supply).
4. Check the ac sample voltage on the AUI (click
Meters
, then select
Rack 1
and then select AC
Sample). It should be between 310 V and 335 V. If not, change the transformer tap setting
(see
Section 3, “Installing the power transformer” on page 3-1 ).
5. Select
Local
control.
6. Set the active preset’s power output to zero.
7. Press
RF On
. The
RF On
button will turn green.
WARNING:
If a jumper is placed between interlock inputs J6-1/2 on the control/
interface pwb, safety features controlled by the external interlocks
will be disabled. A fail safe method of alerting personnel to this fact
should be implemented. Voltages which are dangerous to life will be
present on the RF output stages and the antenna system if the
transmitter is turned on.