Yaskawa iQpump Controller User Manual - Manual (Page 245)

G.4 Sleep/Sleep Boost Function
YASKAWA TM.iQp.06 iQpump Controller User Manual 245
G.4 Sleep/Sleep Boost Function
The following is a summary of a set-up procedure and application examples included in this section.
• Sleep/Sleep Boost Function
This function is intended for use with a pressure tank and will boost the set pressure (psi) over the Auto Setpoint Monitor (U1-01) prior to
shutdown (sleeping), extending the pump sleep time to reduce cycling and save energy.
◆ Application
Example: Irrigation System
A customer is using a pressure tank within the system to compensate for small leaks in the system and to reduce the pump cycling during
very low demand periods.
• System Setpoint = 100 psi
• Transducer Range 4 ~ 20 mA = 300 psi
• Sleep Boost Requirement = 10 psi for 15 s
• Motor FLA = 10 Amps
Figure G.2
Figure G.4 Irrigation System Example
◆ Related Parameters
The required parameter changes for the Sleep/Sleep Boost Function are as follows:
Note: All other parameters are to remain at the factory default settings.
Parameter Parameter Name Setting
E2-01 Motor Rated Current 10 Amps
P1-03 Feedback Device Scaling 300 psi
P2-21 Sleep Boost Level 10 psi
P2-22 Sleep Boost Maximum Time 15 s
Monitor Monitor Name Setting
U1-01 Auto Setpoint Reference 100 psi
PRESSURE
TANK
TRANSDUCER
PUMP
MOTOR