York YK-EP B Operation & Maintenance Manual page 95

FORM 160.87-OM1
ISSUE DATE: 8/24/2018
DC Bus Voltage
Displays the DC Bus voltage as reported by the VSD.
DC Inverter Link Current
Displays the DC Inverter link current as reported by
the VSD.
Internal Ambient Temperature
Displays the ambient temperature inside the VSD cabi-
net as reported by the VSD.
Converter Heatsink Temperature
Displays the heatsink temperature of the converter as
reported by the VSD.
Heatsink Temperature – Phase A, B, C
(Labeled Baseplate Temperatures on VSD with part
number 371-03789-xxx (503HP 60Hz; 419HP 50Hz).
Displays the heatsink (baseplate) temperature of each
of the 3-phase voltage regulators as reported by the
VSD.
VSD Model
Access Level Required: SERVICE
Displays the horsepower configuration of the Variable
Speed Drive control.
100% Full Load Amps
Displays the Full Load Amps value as reported by the
VSD.
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
PROGRAMMABLE
Local Motor Current Limit
Access Level Required: OPERATOR
Allows the user to specify the maximum allowed mo-
tor current (as a percentage of FLA). When the mo-
tor current reaches this value, the Pre-Rotation Vanes
will not be permitted to open further. If the motor cur-
rent rises above this value, the Pre-Rotation Vanes will
close to reduce the current to this value.
Pulldown Demand Limit
Access Level Required: OPERATOR
Allows the user to specify the current limit value (as a
percentage of FLA) to which the chiller will be limited
during the specified pulldown limit time. This value
will override the Motor Current Limit value during this
time period. This function is used to provide energy
savings following chiller start-up.
Pulldown Demand Time
Access Level Required: OPERATOR
Allows the user to set a period of time for which the
pulldown demand limit will be in effect after the chiller
starts.
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
VSD
Access Level Required: VIEW
Returns user to VSD Screen.
2
95