Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur télécharger pdf (Page 170)

170 YASKAWA TM.iQp.07 iQpump Controller Programming Manual

• P2-01 = 1: Display based on “Hz” <0034>

• P2-01 = 2: Display based on “Hz” <0034>

• P2-01 = 3: Display based on “rpm” <0034>

• P2-01 = 4: Display based on “Hz” <0034>

The Alternative Sleep Activation Level (P2-20) works in conjunction with the Start Level (P1-04) and the Sleep Level Type (P2-01).

It is recommended that P2-20 be programmed 1 or 2 Hz above the P1-06 value. The sleep level using P2-20 enables the sleep mode;

however, the drive still enters sleep based on P2-20. With the normal default sleep level programmed in

P2-02, the sleep cycle will not activate until the output frequency is above P2-02.

◆ P2-21 Sleep Boost Level <0034>

Setting Range: 0.0 ~ 6000.0

Factory Default: 0.0

Refer to parameter P2-21 in Appendix A for description details.

◆ P2-22 Sleep Boost Maximum Time <0034>

Setting Range: 1.0 ~ 160.0 s

Factory Default: 5.0 s

Refer to parameter P2-22 in Appendix A for description details.

◆ P2-23 Anti-No Flow Bandwidth <0034>

Setting Range: 0.00 ~ 2.00%

Factory Default: 0.40%

The iQpump P2-23 parameter is to provide a simple and reliable method of detecting and reacting to the “No-Flow” condition. When the

drive detects that the pump is no longer contributing to the overall pressure in the system due to a “No-Flow” condition, an increased rate

of deceleration will occur. The normal sleep function will then take over. This function will only operate when the Sleep Level Type is

frequency or speed (P2-01 = 3).

Figure 1.123

Figure 127. Anti-No-Flow

Feedback

Output

Frequency

Anti No Flow

P2-24

ANF Det Time

Setpoint

P2-03

Sleep Tm.

Drive

(re)Start

Start of No-Flow

Condition

P2-02

Sleep Level

Min Speed or

Thrust Speed

are

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Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur Page 170

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