User Manual for BPS-4000
www.levitronix.com
PL-4016-00, Rev11, DCO# 18-057
9.1.1 Immunity to Voltage Sags – Semi F47
Based on internally testing at Levitronix
®
the pump system BPS-4000 in its various configurations is able to
handle all the voltage sags defined in SEMI F47. Therefore the pump system BPS-4000 full fills the
requirements of the SEMI F47 standard. The nominal voltage range is 200 – 240 VAC ±10% for operation
without performance reduction. Based on this range the voltage sags specified in SEMI F47 have an
influence on the maximum performance as following:
80% of Equipment Nominal
Voltage, duration 1000 ms
No impact on the system operation mode since supply voltage is above
the warning level. Slight power drop at high flow rate and speed is
possible.
70% of Equipment Nominal
Voltage, duration 500 ms
No impact on the system operation mode since supply voltage is above
the warning level; slight power drop at high flow rate and speed is
possible.
50% of Equipment Nominal
Voltage, duration 200 ms
The system reduces the speed to 4000 rpm for save operation since
supply voltage is below the warning level.
After the disappearing of the voltage drop, the system is returning to its full performance.
Note: For the standalone controller LPC-4000.1 this feature is implemented for the standard firmware F1.25
with revisions R11. For the extended controller LPC-4000.2 this feature is implemented for the standard
firmware F1.48 with revisions R12.