Quincy Compressor QSI Series Instruction Manual page 82

Section IV - Operating Procedures
• The final item is "VSD"
running as slaves, they would be seen as fixed speed compressors. To check its settings, Use scroll keys and move
cursor to VSD and press Enter key. Following screen will appear:
Number Timers
1 VSD Maximum Starts Per Day
2 VSD Maximum RPM Factor
3 VSD Minimum RPM Factor
4 VSD Zero RPM Band Factor
80
. This option is for any slave compressor which is running on VSD. When they are
Description
The second up to sixth VSD compressor will be seen as a
Fixed Speed compressor running at optimal/ maximum speed.
Since these VSD's are seen as fixed speed compressors, a
'Number of starts per day' is required for the regulation.
Percentage of Control VSD Speed; required for the decision to
start/load/unload and stop fixed speed and maximum speed
VSD's.
Percentage of Control VSD Speed; required for the
decision to start/load/unload and stop fixed speed and
maximum speed VSD's.
Percentage multiplied with the 'Minimum Speed' to
decide that the Control VSD can be considered as
stopped.
Quincy Compressor-QSI
®