GatesAir Inc. ULXATSC Manual De Usuario

2/19/10

888-2715-001

3-5

WARNING: Disconnect primary power prior to servicing.

Section 3 Diagnostics

Maxiva ULX ATSC Series
User Manual

3.4

Fault Tables

The following tables provide a listing of Maxiva Transmitter faults along with a brief
description, the fault level or threshold and the action taken by the transmitter.

Table 3-1 Maxiva Drive Chain Fault List

TYPE

Description

Fault Level or
Threshold

Transmitter
Action

Three
Strike

Available
in Life
Support

IPA A Fault: Power
Supply, LDMOS,
VSWR, Power
Overload, Tempera-
ture, Input Power

The IPA can report
up to 6 faults via
their parallel con-
trol pins

Any one fault active

IPA Switch to
alternate IPA if
in Auto Mode

YES

IPA B Fault: Power
Supply, LDMOS,
VSWR, Power
Overload, Tempera-
ture, Input Power

The IPA can report
upto 6 faults via
their parallel con-
trol pins

Any one fault active

IPA Switch to
alternate IPA if
in Auto Mode

YES

PDU (Predriver) A
Fault

The Predriver cur-
rent is monitored
inside the PDU. A
fault is sent if it is
below the normal
minimum current.

Predriver current is
below TBD mA

IPA Switch to
alternate IPA if
in Auto Mode

YES

PDU Predriver B
Fault

The Predriver cur-
rent is monitored
inside the PDU. A
fault is sent if it is
below the normal
minimum current.

Predriver current is
below TBD mA

IPA Switch to
alternate IPA if
in Auto Mode

YES

Exciter A Power
Output

Exciter A power
level low

Trip point is 50% of
nominal. Trip point
adjustable by epot

Exciter Switch
to alternate
Exciter if in
Auto Mode

YES