CPI 0102324500rR, Manual

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CHPA S
ERIES
D
OC
.01023245 R
EV
.R THIS DOCUMENT IS THE PROPERTY OF COMMUNICATIONS & POWER INDUSTRIES.
REPRODUCTION OR RELEASE WITHOUT EXPRESS PERMISSION IS STRICTLY PROHIBITED
4-5
4. Repeatedly press the MENU button until Line 3 indicates FAULT TRIP SETTINGS.
5. Repeatedly press the FUNCTION key to cycle through the following settings:
•
Helix Over Voltage
•
Helix Under Voltage
•
Helix Over Current
Each setting should fall within the range set in Table 4-1.
6.
After examining the settings, press the SPECIAL key followed by the . (decimal) button. Key
in 15; the display will change to the entry for the FAAC.
7. Enter the FAAC, and then press ENTER to exit the FAAM. The Test Mode LED should now
be dark.
To change RF Faults and Alarms perform the following steps:
1.
Press the SPECIAL button followed by the . (decimal) button. Key in 07; the display will
change to the entry for RF Faults and Alarms.
2. Repeatedly press the FUNCTION key to cycle through the RF faults and alarms.
3. For the purposes of the following procedures, set the High RF Alarm to 600 W and the High
RF Fault to 620 W (High RF Alarm to 415W and the High RF Fault to 425W DBS band unit).
All numerical entries should be followed by ENTER.
For more details on the Low RF Relay and Sum Fault Relay, refer to Chapter 3, “Interfaces,”
under “RF Switch System Interface.”
Table 4-1. Helix and RF Settings Ranges
Fault Name Minimum Nominal Factory
Preset Defaults
Label Maximum Set for TWT
Helix Over Voltage 11.20kV 13.00kV 13.00kV TWT label +300V
Helix Under Voltage 0.00kV 10.00kV 12.90kV TWT label -300V
Helix Over Current 5.0mA 13.0mA 15.0mA As per TWT
datasheet
Low RF Alarm 0W 0W 900W 0
Low RF Fault 0W 0W 900W 0
High RF Alarm 0W 700 W 900 W Rated (W)
High RF Fault 0W 750W 900W Rated +20% of
Rated (W)
High Reflected RF 0 W 50 W 80 W 10% of Rated (W)
Helix Voltage Detected
in Standby 1.00 kV 4.00 kV 7.50 kV 5 kV