Quantech QTC4 STYLE A Series Installation Operation & Maintenance page 117

Air-cooled screw liquid chillers with variable speed drive, 150 - 500 tons, 525 - 1750 kw, 2 compressor, 60 hz
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FORM QTC4-NM1
ISSUE DATE: 4/2/2018
SYS X PULLDOWN MOTOR CURRENT LIMITING
The pulldown motor current limiting message indicates
the pulldown motor current load limit or pulldown
motor current unloading is in effect based on the pro-
grammed setpoint.
SYS X ISN CURRENT LIMITING
The ISN Current Limiting message indicates the motor
current load limit or motor current unloading is in ef-
fect through the use of the YORKTalk setpoint.
SYS X REMOTE MOTOR CURRENT LIMITING
The Remote Motor Current Limiting message indicates
the motor current load limit or motor current unloading
is in effect through the use of the remote setpoint off-
set. The setpoint may be offset using a remote voltage
or a current signal. The remote current limit must be
activated for this function to operate.
SYS X VSD BASEPLATE TEMP LIMITING
The VSD Baseplate Temp Limiting message indicates
the VSD Baseplate temp is high and load limit or un-
loading is in effect.
QUANTECH
SYS X VSD INTERNAL AMBIENT TEMP LIMITING
The VSD Internal Ambient Temp Limiting message in-
dicates the VSD internal ambient temp is high and load
limit or unloading is in effect.
SYS X SOUND LIMITING
The sound limiting message indicates the sound load
limit is in effect based on the locally programmed
sound limit from the keypad. The sound limit must be
activated for this function to operate.
SYS X ISN SOUND LIMITING
The ISN sound limiting message indicates the sound
load limit is in effect based on the ISN transmitted
sound limit setpoint. The sound limit must be activated
for this function to operate.
SYS X REMOTE SOUND LIMITING
The Remote sound limiting message indicates the
sound load limit is in effect based on the Remote con-
trolled sound limit setpoint. The setpoint may be offset
using a remote voltage or current signal. The sound
limit option must be activated for this function to
operate.
SECTION 8 - MICROPANEL
117
8

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