Variable Geometry Diffuser screen
Figure 41: Variable Geometry Diffuser screen
This screen displays information pertinent to the VGD operation. Also, the VGD can be manually
controlled from this screen.
Table 50: Display only fields
Field/LED name
Description
Stall Detector Voltage
Displays the Stall Detector output voltage (x.xx VDC), as received by the Microboard.
High Limit
Displays the High Stall Detector Voltage Limit. Set in the VGD Setpoints Screen with
Service Level Access.
Low Limit
Displays the Low Stall Detector Voltage Limit. Set in the VGD Setpoints Screen with
Service Level Access.
Mach Number
Displays the status of the VGD Limit Switch. Displayed as CLOSED when the VGD is in
the fully closed position. Otherwise, displayed as OPEN.
VGD Closed Limit Switch
Displays the status of the VGD Limit Switch. Displayed as CLOSED when the VGD is in
the fully closed position. Otherwise, displayed as OPEN.
VGD Opening (LED)
Illuminates when an open signal is being applied to the VGD.
VGD Closing (LED)
Illuminates when a close signal is being applied to the VGD.
VGD Position
Shows the position of the VGD. 0 to 100% open.
Maximum VGD Position
Shows the maximum calculated value that the VGD will be allowed to open for the
present condition (0 to 100%). Opening too far could cause surge.
Surge Avoidance Surge Detected
(LED)
Illuminates momentarily when a surge is detected by the Surge Protection feature. If
equipped with a VSD or MV VSD, these are only the surges detected while the drive is
running at maximum frequency.
It illuminates momentarily when a surge is detected by the Surge Protection feature,
regardless of the VSD operating speed.
ACC Surge Detected (LED)
Only displayed if equipped with a VSD or MV VSD. Illuminates momentarily when a
surge is detected by the ACC function in the Microboard, while the drive is running at
less than maximum frequency.
Stall Count
Displays the number of times the Stall Detector Board output voltage goes above the
High Limit Setpoint. The count can be cleared with in ADMIN access level using the
VGD CYCLE COUNT key on the VGD SETPOINTS Screen.
67
Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center
Содержание YK Style H
Страница 2: ...2 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...
Страница 6: ...6 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...
Страница 202: ...Figure 87 Sample printout status cont Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center 202...
Страница 203: ...Figure 88 Sample printout setpoints 203 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...
Страница 204: ...Figure 89 Sample printout setpoints cont Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center 204...
Страница 205: ...Figure 90 Sample printout schedule 205 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...
Страница 206: ...Figure 91 Sample printout sales order Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center 206...
Страница 207: ...Figure 92 Sample printout sales order cont 207 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...
Страница 208: ...Figure 93 Sample printout history Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center 208...
Страница 209: ...Figure 94 Sample printout history cont 209 Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center...