Rohde & Schwarz R&S ATS1000, Инструкция по эксплуатации, Страница: 57 / 81

Operation
R&S
®
ATS1000
57 Instructions Handbook 1179.2983.02 ─ 01
Before operating the positioning system, you must activate the controller and refer-
ence the azimuth turntable.
The turntable requires referencing because one of its turning modes allows endless
turning.
Two turning modes
●
In the default delivery state of the chamber, the energy chain in the azimuth turnta-
ble is connected . To prevent damage to the positioner and to cables that are fed
through the energy chain, the NCD firmware limits the turning range from -15° to
+375°. The connected energy chain is indicated by the closed-chain symbol in the
azimuth representation on the NCD controller's display.
●
Endless turning mode is permitted only if the energy chain is not connected
(open-chain symbol on the display) and if no cables are fed through to the turnta-
ble. This handbook describes only the default state with connected energy chain.
To activate the controller
The following procedure describes activation of the NCD controller.
Prerequisite: the NCD controller is connected to the operational positioning system.
If the controller is not yet active, proceed as follows:
1. Check that the controller is connected to the mains power supply.
2. Set the power on/off switch on the rear side of the controller to the [1] (on) position.
3. Press the black standby button (labeled 5 in Figure 7-10 ) on the right-hand side of
the front panel.
4. Wait until the system has booted.
To reference the turntable
Prerequisite: the NCD controller is activated and shows no error message. The
absence of any error message means that the controller and the positioner worked cor-
rectly during the previous operation. If you are using the chamber for the first time, note
that the previous operation can have been the manufacturer's final test.
If the controller outputs a "REF" message, the system requires the azimuth turntable to
be referenced. To do so, proceed as follows:
1.
NOTICE! Risk of antenna collision with the turntable's crank. If the antenna arm
moves below 160° elevation (maximum is 165°, see below), the antenna mounted
on the arm can collide with the turntable's crank. Such a collision typically destroys
the antenna.
Make sure that the turntable's crank is removed; see
Figure 7-3 .
Operating the Positioning System