User Manual

MCA9129-90-A Installation & Service Manual
Ó Copyright Powerwave Technologies, Inc., July 2001. All rights reserved
044-05060 Rev. C 3-3 July 2001November 2002
3-3.2 +15V Indicator (+15VDC)
Green LED. When lit, indicates that the +15Vdc supply is greater than +14Vdc and less than
+16Vdc. If the voltage source varies out of its operating window, a timer is started and the DC fail
counter is incremented. After five seconds the voltage is analyzed, if still faulted the counter is in-
cremented. If the count equals 25 before the timer reaches 15 minutes, the MCPA will enter fault
mode. Fault mode will disable the MCPA. The +15V indicator will turn off, the DC FAIL and LPA
DISAB indicators will illuminate and a summary fault will occur signaling the shelf that the MCPA
is disabled. In fault mode the LED indications are latched. Toggling the reset switch will enable
the MCPA and clear the summary alarm and latched indicators. If 15 minutes elapse before the
counter reaches 25, the counter and timer will reset to zero.
3-3.3 +5V Indicator (+5VDC)
Green LED. When lit, indicates that the +5Vdc supply is greater than +4.5Vdc and less than
+5.5Vdc. If the voltage source varies out of its operating window, a timer is started and the DC fail
counter is incremented. After five seconds the voltage is analyzed, if still faulted the counter is in-
cremented. If the count equals 25 before the timer reaches 15 minutes, the MCPA will enter fault
mode. Fault mode will disable the MCPA. The +5V indicator will turn off, the DC FAIL and LPA
DISAB indicators will illuminate and a summary fault will occur signaling the shelf that the MCPA
is disabled. In fault mode the LED indications are latched. Toggling the reset switch will enable
the MCPA and clear the summary alarm and latched indicators. If 15 minutes elapse before the
counter reaches 25, the counter and timer will reset to zero.
3-3.4 –5V Indicator (–5VDC)
Green LED. When lit, indicates that the -5Vdc supply is greater than -5.5Vdc and less than -
4.5Vdc. If the voltage source varies out of its operating window, a timer is started and the DC fail
counter is incremented. After five seconds the voltage is analyzed, if still faulted the counter is in-
cremented. If the count equals 25 before the timer reaches 15 minutes, the MCPA will enter fault
mode. Fault mode will disable the MCPA. The -5V indicator will turn off, the DC FAIL and LPA
DISAB indicators will illuminate and a summary fault will occur signaling the shelf that the MCPA
is disabled. In fault mode the LED indications are latched. Toggling the reset switch will enable
the MCPA and clear the summary alarm and latched indicators. If 15 minutes elapse before the
counter reaches 25, the counter and timer will reset to zero.
3-3.5 3-3.1 RESET Switch
Three position switch:
Down Position – Has no ef
fect Disabled.
Center Position - Normal amplifier on position.
RESET (up position) - When toggled to reset position, all the green
LED indicators will turn
off and all the red Status LED indicators will illuminate momentarily (LED test); this will also
reset the fault latches. Then a series of fault LEDs will illuminate for 2 seconds to illustrate
configuration type. If the switch is held in the reset position, a microcontroller reset will occur.
This will be verified by the LEDs toggling state again. The switch is spring loaded to return to
the normal ON position when released. If a fault occurs and the MCA is disabled, the alarms
can be cleared and the MCA enabled by this reset position. The functions of the switch are
disabled for five seconds after a power-up condition.
3-3.6 3-3.2 Over Power Indicator (OVER PWR)
Red LED. When blinking,illuminated, indicates the output power from the amplifier has ex-
ceedeedd 120 52dBmwatts. When lit, indicates the output power from the amplifier exceeded