Table 4-1. Helix And Rf Settings Ranges - CPI 0102324500rR Manual

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
Helix Over Voltage
Helix Under Voltage
Helix Over Current
Low RF Alarm
Low RF Fault
High RF Alarm
High RF Fault
High Reflected RF
Helix Voltage Detected
in Standby
D .01023245 R .R
OC EV
Minimum Nominal Factory
Preset Defaults
Label
11.20kV 13.00kV
0.00kV 10.00kV
5.0mA 13.0mA
0W 0W
0W 0W
0W 700 W
0W 750W
0 W 50 W
1.00 kV 4.00 kV
THIS DOCUMENT IS THE PROPERTY OF COMMUNICATIONS & POWER INDUSTRIES.
REPRODUCTION OR RELEASE WITHOUT EXPRESS PERMISSION IS STRICTLY PROHIBITED
Maximum Set for TWT
13.00kV TWT label +300V
12.90kV TWT label -300V
15.0mA As per TWT
datasheet
900W 0
900W 0
900 W Rated (W)
900W Rated +20% of
Rated (W)
80 W 10% of Rated (W)
7.50 kV 5 kV
CHPA S
ERIES
4-5