Yaskawa iQpump Drive User Manual - Manual (Page 82)

4.7 High Feedback Level Alarm and Fault Setup
82 YASKAWA TM.iQp.01 iQpump Drive User Manual
Figure 4.7
Example: Constant Pressure System
System Units set to PSI (P1-02 = PSI)
System Setpoint set for 80 PSI
Pressure Transducer: 150 PSI
Desired Operation:
Pump System should show High Feedback Alarm when feedback level rises above 90 PSI and fault the system if the feedback level stays
there for more than 30 sec.
Solution: Program P1-09 to 90 PSI and P1-10 to 30 sec.
Note: High feedback detection is active during running in both Hand and Auto Mode.
FAULT
LFB ALARM
LFB
NORMAL
TIME
P1-10 P1-10
FEEDBACK High
Level
P1-09
P1-13
Hysteresis
ALARM
LFB