York YK-EP Operation And Maintenance Manual page 133

Table 131: Programmable
Button Access level
Winding
Temperature Service
Protection
Bearing
Temperature Service
Protection
YK-EP Style B Centrifugal Chiller
Description
Enables the type of temperature sensing device being used to sense
motor winding temperature. When set to any setting other than
Disabled, the respective temperatures are enabled, displayed and
the HIGH WINDING TEMPERATURE Fault and Warning will occur
when the programmed thresholds for those conditions are reached.
The settings are:
• DISABLED - Disables the Winding Temperature feature. No
winding temperatures are displayed and the heading, text and
data boxes do not appear. The High Winding Temperature
Fault and Warning will not occur. This setting is used when the
motor is not equipped with winding temperature sensors or
if is desired to disable the feature for service reasons. This is
the default setting. The winding displays can be individually
disabled using the Temperature Disable Setpoint (ADMIN
access level) on the MOTOR SETPOINTS Screen.
• RTD - Enables and displays the 6 (2 per phase) Motor Winding
Temperatures, as reported by the winding RTD's, via the
Motor Monitoring Board serial communications.
• TRANSMITTER - Enables and displays the 3 Motor Winding
Temperatures, as reported by the winding transmitters via the
Motor Monitoring Board serial communications.
• VSD TRANSMITTER - Enables and displays the 3 Motor
Winding Temperatures, as reported by the winding
transmitters via the VSD Logic Board serial communications.
Enables the type of temperature sensing device being used to sense
motor bearing temperature. When set to any setting other than
Disabled, the respective temperatures are enabled, displayed and
the HIGH BEARING TEMPERATURE Fault and Warning will occur
when the programmed thresholds for those conditions are reached.
The settings are:
• DISABLED - Disables the Bearing Temperature feature. No
bearing temperatures are displayed and the heading, text
and data boxes do not appear. The High Bearing Temperature
Fault and Warning will not occur. This setting is when if the
motor is not equipped with bearing temperature sensors or if
is desired to disable the feature for service reasons. This is the
default setting.
• RTD - Enables and displays the 2 motor bearing temperatures,
as reported by the bearing RTD's, via the Motor Monitoring
Board serial communications.
• VSD TRANSMITTER - Enables and displays the 2 motor bearing
temperatures, as reported by the bearing transmitters via the
VSD Logic Board serial communications.
133