No. Parameter Name Setting Range Default
P2-02 Sleep Level 0.0 to 6000.0 0.0 Hz
n
P2-03: Sleep Delay Time
Sets the delay time after which the drive will enter sleep mode. The drive will enter sleep mode when the monitored data falls
below the P2-02 setting for the time set in P2-03.
No. Parameter Name Setting Range Default
P2-03 Sleep Delay Time 0 to 3600 s 5 s
n
P4-01: Pre-Charge Level
Sets the level at which the drive will activate the pre-charge function. At start, if the PID is below the P4-01 setting, the drive
will run at the P4-02 frequency setting for the time set in P4-03. PID control is delayed until the Pre-charge function stops.
The drive will exit the pre-charge function early if the feedback rises above the P4-01 setting or if a Low Water digital input
switch (H1-oo = 8F) deactivates. Pre-charge is useful to slowly fill or pressurize a system.
No. Parameter Name Setting Range Default
P4-01 Pre-Charge Level 0.0 to 6000.0 0.0 PSI
n
P4-02: Pre-Charge Frequency
Sets the frequency at which the pre-charge function will run.
No. Parameter Name Setting Range Default
P4-02 Pre-Charge Frequency 0.0 to E1-04 0.0 Hz
n
P4-03: Pre-Charge Time
Sets the duration of time that the Pre-Charge function will run.
No. Parameter Name Setting Range Default
P4-03 Pre-Charge Time 0.0 to 3600.0 min 0.0 min
The following conditions must be met to enter Pre-Charge Mode:
• Drive Ready or Sleeping (Run command, not faulted, not in program mode)
• NOT in HAND Mode
• “Disable Pre-charge” digital input NOT closed
• P4-03 > 0.0
• If P4-01, Pre-Charge Level, is greater than 0, the PID feedback must be below the P4-01 level. (Forward acting PID, b5-09
= 0, Reverse acting PID, b5-09 = 1).
When the drive enters Pre-Charge Mode 1 and 2, the drive runs at the Pre-Charge frequency set in P4-02/P4-06, the PID
controller is disabled and the Pre-Charge digital output (H2-0o = A4) closes.
When pre-charge is active, the message “Pre Chg Mode Exit in Xsec” appears on the keypad to show how long before pre-
charge exits via timers (P4-03 + P4-07).
Additionally, during Pre-Charge Mode:
• When Pre-charge Level 2 (P4-32) is set to 0, the system can exit Pre-charge when the PID Feedback goes above the Pre-
charge Level (P4-01) in normal PID operation, or below the P4-01 level in inverse PID operation.
However, when Pre-charge Level 2 (P4-32) is set to a non-zero value, the system goes into Pre-Charge 2 instead when Pre-
Charge 1 completes via timer (P4-03) or level (P4-01). At this point, the drive will run at Pre-charge Frequency 2 (P4-06).
The system can exit Pre-charge 2 when the PID Feedback goes above the Pre-charge Level 2 (P4-32) in normal PID operation,
or below the P4-32 level in inverse operation.
• When P4-02, Pre-Charge Frequency, or P4-06, Pre-Charge Frequency 2, are set to a value less than P1-06, Minimum Pump
Speed, the alarm “Freq. Ref < Pump Min P1-06” is displayed and the drive runs at the minimum speed.
• When Pre-Charge Loss of Prime parameters P4-05 and P4-08 are set to 0, the Loss of Prime detection is disabled.
• When Pre-Charge Loss of Prime parameters P4-05 or P4-08 are set to a value greater than 0, Loss of Prime detection will
operate after the output speed reaches the Pre-Charge Frequency set in P4-02 or P4-06.
•
The “Low Water” fault (H1-0o = 8F) is disabled.
5.11 P: Pump
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
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Parameter Details
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