Figure 51 - Vsd Data And Operating Hours/Start Counter Keys - York YVWA Installation Operation & Maintenance

Water-cooled screw liquid chillers, single compressor 50 hz and 60 hz, 125 - 200 ton, 440 - 700 kw
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FORM 201.30-ICOM1 (519)
ISSUE DATE: 05/22/2019
VSD DATA AND OPERATING HOURS/START COUNTER KEYS
VSD DATA
KEY
OPERATING
HOURS/START
COUNTER KEY

FIGURE 51 - VSD DATA AND OPERATING HOURS/START COUNTER KEYS

The VSD DATA key provides multiple displays of
VSD operating data, such as voltages and currents.
Press the VSD DATA, or ▲ or ▼ key to view multiple
messages, which are explained below.
VSD FREQUENCY
COMMAND = ###.# HZ
VSD COMP = ### AMPS = ### % FLA
This key displays the calculated COMPRESSOR mo-
tor currents.
VSD CURRENT LIMIT
BAS = ###
CURRENT LIMIT displays the current limit values as
set under the PROGRAM key, remotely by a BAS, and
REMOTE CURRENT LIMIT input. Inactive current
limits will display XX instead of a numeric value.
VSD
DC BUS VOLTAGE = ### VDC
VSD
INTERNAL AMBIENT TEMP = ###.# °F
COOLING SYSTEM STATUS = ON OR OFF
JOHNSON CONTROLS
ACTUAL = ###.# HZ
LOCAL = ### %FLA
REMOTE = ### %FLA
LD19539
VSD IGBT BASEPLATE TEMPS T1 = ### °F
VSD
PRECHARGE SIGNAL = ON OR OFF
VSD
COMP MOTOR OVERLOAD = ### AMPS
This message (above) displays the setting of the VSD's
105% FLA potentiometer for the Compressors. The
settings are determined by the adjustment of the over-
load potentiometers on the VSD logic board, which are
factory set, and should not require changing unless the
circuit board is replaced.
Operating Hours/Start Counter Key
HOURS 1=###, 2=###
START 1=###, 2=###
Compressor operating HOURS and STARTS are dis-
played with a single key press. The maximum value
is 99,999, at which point both values roll over to zero.
SECTION 6 - OPERATION
6
T2 = ### °F
107

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