Yaskawa iQpump Drive User Manual - Manual (Page 145)

6.3 Alarm Detection
YASKAWA TM.iQp.01 iQpump Drive User Manual 145
◆ Pump Alarm Messages Generated
Digital Operator
Display
Description Cause Corrective Action
Low Feedback
Low FB Sensed
Low Feedback Level Alarm
Feedback signal is too low.
The feedback level has dropped below the low
feedback level (P1-07). Low feedback fault is
active in Auto Mode when the iQpump drive is
running.
Feedback level greater than the low
feedback level (P1-07).
High Feedback
High FB Sensed
High Feedback Alarm
Feedback signal is too high.
The feedback level has risen above P1-09 level.
High feedback alarm is active in Hand Mode, Auto
Mode, Pre-charge and Thrust Mode when the
iQpump drive is running.
Feedback level lower than the high
feedback level (P1-09).
Start Delay
Timer Active
Start Delay
Start delay timer is active.
Displays when the iQpump drive is about to start.
The feedback level is fallen below the start level
(P1-04) and the start delay timer is active. Once the
start level delay time (P1-05) expires, the iQpump
drive will start.
When PI output level selection (b5-09) is
programmed for reverse, the alarm is displayed
when the feedback level falls rises above start level
(P1-04).
Wait for the start level delay time to
expire.
Program a different start level delay
time.
Sleep Active
Wait for Start
During Sleep / Wait for Start
Sleep mode waiting for
appropriate levels to start.
Displays when the iQpump drive is in the “sleep”
mode or when the iQpump drive is waiting for
feedback level to drop below start level (P1-04).
When PI output level selection (b5-09) is
programmed for reverse, the alarm is displayed
when feedback level falls below start level (P1-04).
Wait for the sleep mode time to
deactivate.
Program a different start level or
disable sleep mode.
Pre-Chg Mode
Pre-Chg Active
During Pre-Charge
The pre-charge mode is
active.
Displays when “Pre-charge” mode is active.
Wait for pre-charge mode to
deactivate.
Disable pre-charge mode.
Pump Cycling
Pump Over Cycle
Pump Over Cycle
The number of cycles is
exceeded.
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 group P2 to
prevent system from cycling.
Thrust Mode
Thrust Active
Thrust Bearing
The thrust bearing mode is
active.
Displays when “Thrust Bearing” mode is active.
Wait for thrust bearing mode to
deactivate.
Disable thrust bearing mode.