York YCAV0569, Installation Operation & Maintenance

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JOHNSON CONTROLS
FORM 201.21-NM2 (616)
VSD DATA KEY
LD10605
VSD
DATA KEY
GENERAL
The VSD DATA Key provides the user with displays of
VSD temperatures, voltages, currents, and other operat-
ing data. This key has multiple displays, which can be
seen by repeatedly pressing the VSD DATA or the ▲
or ▼ (ARROW) keys. An explanation of each message
is provided below.
VSD DATA KEY Operation
The first VSD Data key press displays the actual VSD
Output Frequency and Command Frequency.
The second key press of the VSD DATA Key or the
▼ (ARROW) key displays the compressor %FLA and
“calculated” currents in amps for systems 1 and 2. The
“calculated” currents are approximate and some error
can be expected. Also keep in mind that measuring
inverter PWM current is difficult and meter error can
be significant.
VSD FREQUENCY ACTUAL = XXX.X HZ
COMMAND = XXX.X HZ
For 3 and 4 compressor units only, the second key press
will display the following message for systems 1 and
3:
VSD COMP 1 = XXX AMPS = XXX %FLA
COMP 2 = XXX AMPS = XXX %FLA
For 3 and 4 compressor units only, the next key press
displays the compressor %FLA and currents for systems
2 and 4. 3 compressor units will have the 4th compressor
information blanked out.
VSD COMP 1 = XXX AMPS = XXX %FLA
COMP 3 = XXX AMPS = XXX %FLA
VSD COMP 2 = XXX AMPS = XXX %FLA
COMP 4 = XXX AMPS = XXX %FLA
MICRO PANEL