Alpha Technologies APP 60S - Manual (Page 11)

016-001-B0-002 6/97 016-001-B0-002 6/97 016-001-B0-002 6/97 016-001-B0-002 6/97 016-001-B0-002 6/97
2. APP60S
5
2.1 Ammeter
The front panel ammeter displays output current flowing from the power module into the
load. It is extremely useful in determining the status of the plant during maintenance and
trouble-shooting. When there is no load at the output, the ammeter reads zero. When the
meter reads above the rated output of the APP60S, such as 18 or 20 Amps, an overload or
short circuit condition may exist in the load.
2.2 AC Output Fuse
The 15 Amp AC output fuse protects the load from excessive durations of short circuit
current. If the front panel ammeter reads zero, indicating no output to the load, this fuse
should be checked and replaced if necessary.
2.3 AC Input Fuse
The 12 Amp AC input fuse protects the APP60S from short circuit conditions, especially when
it is used in conjunction with a generator during outage conditions. If the unit does not come
ON when power is applied, first verify that the unit is plugged into the convenience outlet
and that the main AC circuit breaker is in the ON position. Then check the input fuse and
replace it if necessary.
2.4 AC LINE Indicator (Green)
The AC LINE indicator displays the presence of utility AC at the input. If the indicator does
not light when the unit is switched ON, first verify that the unit is plugged into the
convenience outlet and the main AC circuit breaker is in the ON position. If necessary, check
the AC input fuse and replace it if necessary.
2.5 30 / 60 VAC Switch
The 30 / 60 VAC switch is used to select the desired output voltage. For 50 Hz applications,
the switch is configured for 48 / 60 VAC.
2.6 ON / OFF Switch
The ON / OFF switch is used to apply or remove power from the APP60S.
2.7 "Jones" Connector
The APP60S "Jones" connector plugs directly into the Service Power Inserter's mating
connector to provide output power to the load. Note: The SPI's "ALT/ON" switch must be
in the "ALT" position to accept power from the APP60S.
2.8 AC Line Cord
The APP60S AC line cord plugs directly into the enclosure’s convenience outlet.
3.1 APP60S Installation and Power Module Removal