Yaskawa iQpump Controller Programming Manual Uživatelský manuál stáhnout pdf (Strana 33)

YASKAWA TM.iQp.07 iQpump Controller Programming Manual 33

◆ b5-01 PI Mode

The iQpump drive can be used as a stand-alone PI controller. If PI functionality is selected by parameter b5-01, the iQpump drive will

adjust its output to cause the feedback from a transmitter to match the PI Setpoint (b5-19). The setting of b5-01 will determine whether PI

functionality is disabled (b5-01 = “0: Disabled”), enabled (b5-01 = “1: Enabled”), enabled - 2 zone (dual zone PI enabled) (b5-01 = 2).

b5-01 = 0, Disabled

PI functionality is disabled.

b5-01 = 1, Enabled (factory default)

PI functionality is enabled.

b5-01 = 2, Enabled - 2 Zone (dual zone PI enabled)

<0034>

Enabled - 2 zone.

Provides automatic setpoint and feedback switching for dual zone pumping applications (geothermal).

• Terminal A1 is used as a feedback signal for “Zone 1”.

• Standard PI Feedback (H3-09 = B) as feedback for “Zone 2”.

• Based upon the two feedback levels, the drive determines which setpoint and feedback signal to use.

Figure 1.27

Figure 27. Dual Zone PI

Changes from standard product:

• When the Dual Zone PI is enabled (b5-01 = 2) Terminal A1 becomes the feedback signal for Zone 1.

• Multi-Step Frequency Reference Select digital inputs are ignored (H1-0x = 3 or 4) when the Dual Zone PI is enabled (b5-01 = 2).

• Transducer Loss Detection is enabled on Terminal A1 when b5-01 = 2.

Setting Description

0Disabled

1 Enabled (factory default)

2 Enabled - 2 Zone (dual zone PI enabled)

<0034>

To:

Zone 1

To:

Zone 2

Zone 1

Valve

Zone 2

Valve

Yaskawa

iQpump Drive

T1 T2 T3

Motor Leads

Motor

Pump

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 301 302

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Yaskawa iQpump Controller Programming Manual Uživatelský manuál Strana 33