Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur télécharger pdf (Page 185)

YASKAWA TM.iQp.07 iQpump Controller Programming Manual 185

◆ P3-14 Maximum Friction Increase at Maximum Frequency

Setting Range: 0.0 ~ 6000.0

Factory Default: 0.0

The iQpump drive can be configured for multiplex pumping operation. The pump system may experience an increase of friction when

additional pumps are staged (turned ON). The level when the additional compensation for friction losses can be programmed into the

Maximum Friction Increase at Maximum Frequency (P3-14). This function will activate when the output frequency rises above the

Friction Compensation Start Frequency (P3-13). The maximum compensation at Maximum Output Frequency (E1-04) is specified by the

Maximum Friction Increase at Maximum Frequency (P3-14).

Figure 1.135

Figure 139.

The maximum compensation at Maximum Output Frequency (E1-04) is specified by programming the Maximum Friction Increase at

Maximum Frequency (P3-14).

The Maximum Friction Increase at Maximum Frequency (P3-14) works in conjunction with the Friction Compensation Start Frequency

(P3-13). The units for this parameter are determined by the System Units (P1-02).

Note: This function is only active when the Pump Mode (P1-01) is set to 0.

Example:

If P3-13 = 30.0 Hz, P3-14 = 10.0 psi, Output Frequency = 45.0 Hz, and Maximum Frequency = 60 Hz, then:

Setpoint Increase = 5.0 psi

(45.0 - 30.0 Hz) x (10 psi / (60.0-30.0 Hz)) = 5.0 psi

OUTPUT

FREQUENCY

P3-13

Time

SET-POINT

P3-14

FMAX

Friction

Compensation

P3-13

1 2 ... 180 181 182 183 184 185 186 187 188 189 190 ... 301 302

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Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur Page 185