Yaskawa iQpump Micro Manuel d'utilisateur télécharger pdf (Page 159)

P4-05: Pre-Charge Loss of Prime Level

Sets the level used to detect loss of prime in the pump.

No. Name Setting Range Default

P4-05 Pre-Charge Loss of Prime Level 0.0 to 1000.0 0.0 A

If the measured quantity set in P1-18 drops below the level set in P4-05 for the time specified in P1-20 and the output frequency

is at the P4-02 level, a “Loss Of Prime” condition occurs. The drive will respond to the “Loss Of Prime” condition based on

P1-22 setting.

P4-06: Pre-Charge Frequency 2

Sets the frequency reference used when the Pre-Charge 2 function is active. A value of 0.00 disables this function.

No. Name Setting Range Default

P4-06 Pre-Charge Frequency 2 0.0 to [E1-04] 0.0 Hz

P4-07: Pre-Charge Time 2

Sets the amount of time the drive will spend at the P1-06 Pre-Charge Frequency 2 speed during Pre-Charge 2. A value of 0.0

disables this function.

No. Name Setting Range Default

P4-07 Pre-Charge Time 2 0.0 to 3600.0 min 0.0 min

P4-08: Pre-Charge Loss of Prime Level 2

Sets the level used to detect loss of prime in the pump.

No. Name Setting Range Default

P4-08 Pre-Charge Loss of Prime Level 2 0.0 to 1000.0 0.0 A

If the measured quantity set in P1-18 drops below the level set in P4-08 for the time specified in P1-20 and the output frequency

is at the P4-06 level, a “Loss Of Prime” condition occurs. The drive will respond to the “Loss Of Prime” condition based on

P1-22 setting.

P4-10: AUTO Mode Operator Run Power Down Storage

Selects drive response to power loss with regards to the Run command. When running in AUTO Mode and using a Run

command from the keypad (b1-02 = 0), P4-10 determines whether the drive will automatically start running when power is

reapplied. The factory setting of this parameter requires pressing the AUTO key to start the drive after power loss.

WARNING! Sudden Movement Hazard. If the drive is running at power loss, it will automatically initiate an internal Run command upon

power-up if P4-10 = 1 (Enabled) and could result in death or serious injury from moving equipment.

No. Parameter Name Setting Range Default

P4-10 AUTO Mode Operator Run Power Down Storage 0, 1 0

Setting 0: Disabled

Setting 1: Enabled

P4-11: Thrust Bearing Acceleration Time

Setst he amount of time that the drive will accelerate from 0 speed to the value set in P4-12.

No. Name Setting Range Default

P4-11 Thrust Bearing Acceleration Time 0.0 to 600.0 s 1.0 s

While this parameter is active, the drive will display the message “Thrust Mode – Thrust Active” on the keypad and the digital

output associated with thrust mode (H2-0o = A9) will close. For output frequencies above P4-12, the drive standard

acceleration rates will apply and the message and digital output will clear. When this parameter is set to 0.0, the drive will use

the standard acceleration rate.

P4-12: Thrust Bearing Frequency

Sets the frequency used by the drive when determining which acceleration and deceleration time to use. The Thrust Bearing

function is used for applications using submersible motors. The function provides an alternate acceleration time (P4-11) and

deceleration time (P4-13) for protecting the pump bearings.

4.8 Detailed iQpump Parameter Descriptions

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Yaskawa iQpump Micro Manuel d'utilisateur Page 159

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