Yaskawa iQpump Drive User Manual - Manual (Page 142)

6.2 iQpump Keypad Messages
142 YASKAWA TM.iQp.01 iQpump Drive User Manual
POC
Pump Over Cycle
Pump Over Cycle Protection
VFD Controlled Pump exceeds number of Normal
Operation to Sleep Mode Cycles. Cycle limit (P2-
09) for time specified in P2-10.
Adjust sleep parameters to prevent
system from cycling.
THMS
Thermostat
Thermostat Fault Digital input is closed.
Check incoming digital signal from
external device.
Digital Operator
Display
Description Cause Corrective Action