Variable Speed Drive (Vsd) Details Screen - York YK-EP Operation And Maintenance Manual

Variable Speed Drive (VSD) details screen

Figure 40: VSD details screen
This screen displays more detailed information pertaining to a Variable Speed Drive (VSD) part
number 371-03789-xxx (503HP 60Hz; 419HP 50Hz).
Note: Requires a login access level of SERVICE.
Table 110: Display only
Field/LED
Access level
name
Motor Run
(LED)
Motor
Current %
Full Load
Amps
Current Limit
Setpoint
Pulldown
Demand
Time Left
Water Pump
Output (LED)
YK-EP Style B Centrifugal Chiller
Description
Indicates whether the digital output from the controls is
–
commanding the motor to RUN.
Displays the motor current as a percentage of the Full Load Amps
– (FLA) value. For the Variable Speed Drive this is the data returned by
the VSD Logic Board.
Displays the current limit value in use. This value could come from
a 0 to 20mA, 4 to 20mA, 0 to 10VDC or 2 to 10VDC input in Analog
– Remote mode, PWM signal in Digital Remote mode, E-Link or SC-
EQ communications interface in ISN mode, or a locally programmed
value.
Displays the time remaining in the programmed pulldown period if
–
the value is nonzero.
Indicates whether the relay controlling the water pump output is
–
energized.
111