Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur télécharger pdf (Page 236)

236 YASKAWA TM.iQp.07 iQpump Controller Programming Manual

Setting P9-04 to “3: FIFO @ Sleep” acts the same as P9-04 =1 except alternation is only requested when the drive is in Sleep Mode.

The new lead drive is selected using parameter P9-01.

Figure 1.175

Figure 179. Alternation Mode is FIFO Auto

PumpNet Control 1 U1-xx bit 1:

Run as Lag Drive

PumpNet Control 1 U1-xx bit 2:

Run as Lead Drive

PumpNet Control 1 U1-xx bit 1:

Run as Lag Drive

PumpNet Control 1 U1-xx bit 2:

Run as Lead Drive

PumpNet Control 1 U1-xx bit 1:

Run as Lag Drive

PumpNet Control 1 U1-xx bit 2:

Run as Lead Drive

Drive 1

Drive 2

Drive 3

Alternation Timer P9-03

PumpNet Status 1 U1-xx bit 6:

Request for FIFO Auto Alternation

PumpNet Status 1 U1-xx bit 6:

Request for FIFO Auto Alternation

PumpNet Control 1 U1-xx bit 1:

Run as Lag Drive

PumpNet Control 1 U1-xx bit 2:

Run as Lead Drive

Drive 4

PumpNet Status 1 U1-xx bit 6:

Request for FIFO Auto Alternation

PumpNet Status 1 U1-xx bit 6:

Request for FIFO Auto Alternation

Altern ation Timer P9-03

Network Processing

& Delay

Network Processing

& Delay

Drive 1 is the

First Pump

Drive 2 is now the First Pump

Drive 4 runs when the Drive 3

requests for a new lead drive

Drive 3 is now the First Pump

System demand did not

require an additional pump to

replace the drive that was

removed

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Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur Page 236

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