York MILLENIUM 351-46, Руководство по эксплуатации

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JOHNSON CONTROLS
22
FORM 160.00-O1 (1020)
Message:
FLTR LOW HEATSINK TEMP FLT
The temperature as measured by the filter’s thermistor
(2 thermistors on 790 HP) has dropped below 37°F.
This may be caused by an unplugged thermistor, loose
connections, or a wire pinched against the chassis. An
open circuit will simulate a temperature of 32°F.
Message:
FLTR A/D CONVERTER FLT
The ‘519’ Filter logic does a check where it looks at
ground and converts the voltage to a digital value. This
level should be zero. However if there is electrical noise
present on ground, this value will be greater than zero,
and this fault message may appear.
Message:
FLTR INPUT FREQUENCY FLT
The input frequency as measured by the Filter Logic, is
outside the acceptable range of +/- 1 Hertz.
Message:
FLTR HIGH INPUT V FLT
The input voltage as measured phase-to-ground, and
in “peak” volts, must not exceed 424.6 Volts peak. If
exceeded for over 30 seconds, this message will be gen-
erated. The normal cause will be a high utility voltage,
greater than 500 VAC on a 460 VAC system.
Message:
FLTR TRIANGLE WAVE FLT
This message was intended as a check of the ‘519’ logic
board’s internal triangle waveform generator. However
the accuracy of the measuring circuit on the board can
have as much error as the generator it is trying to mea-
sure, resulting in nuisance shutdowns. If this message
occurs repeatedly, it can be corrected by installing a
special EPROM.
Message:
FLTR SERIAL RECEIVE FAULT
is a message which would occur on some early instal-
lations with the IEEE-519 Filter option. It is related
to the level of electrical noise picked up on the serial
communications lines.
Message:
FLTR PHASE ROTATION FLT
The filter determines phase rotation upon receiving a
run signal. Once determined, the phase rotation must
remain constant for 30 line cycles. If not, this message
will be generated. The most likely cause of this mes-
sage would be an interruption in utility power supplying
the VSD.
Message:
FILTER DSP FAULT
On initialization, the Filter logic writes all zero’s to DSP
memory, and then writes all one’s to the same memory.
If any error occurs during read-back, this message is
generated.
Message:
FILTER MEMORY FAULT
On initialization, the Filter logic writes all zero’s to Ex-
ternal memory, and then writes all one’s to the same
memory. If any error occurs during read-back, this
message is generated.