CPI Canada Inc.
Installation
2
2.8.3
Programming DIP switch SW3 for DSS Board #903132-xx
DIP switch SW3 on the dual-speed starter must be set correctly. Failure to do this may result
in improper anode RPM and therefore may damage the X-ray tube.
The dual-speed starter must be programmed to match the input voltage to the generator and the phase
shift capacitors connected to the board. The phase shift capacitor configuration is identified by a label
located on the back of the DSS panel. This programming is done by setting SW3
1)
Power Main Line Input Setting
CAUTION: ENSURE THAT SW3-8 SETTING MATCHES THE LINE INPUT VOLTAGE, WHICH
SHOULD MATCH THE AUXILIARY TRANSFORMER LINE VOLTAGE TAP SELECTION
IN SECTION 2.10.1 OF THIS DOCUMENT.
For generators with a mains input of
400 VAC
-
Set SW3 - 8 - OFF
For generators with a mains input of
480 VAC
-
Set SW3 - 8 -
ON
2)
Capacitor Configuration Setting
Set SW3, switches 1 to7 according to the subassembly tab number labeled on the back of the
DSS panel (see Figure 2-10A).
Example above is configured for a panel assembly 9XXXXX-12, 400V Line Input.
See the next two tables for a list of all the Tab number and their corresponding DIP switch SW3
settings.
Use and disclosure is subject to the restrictions on the title page of this CPI document.
CMP 200
X-Ray Generator Service Manual Ch # 901476-02 Rev. P
Page 2-23