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SINUS PENTA
MULTIPUMP APPLICATION
NOTE
CAUTION
• When the pump drives are connected via serial link, up to 5 pumps
can be controlled.
• If the drives of the slave pumps are controlled through the digital
inputs (without using ES847 expansion board), only 2 additional
pumps can be controlled, because one digital output of the two MUP
drives is used for allocating the speed reference of the slaves to the
analogue output of the MUP drive which is operating as the Master
drive (digital output programmed as Master MUP drive). See Figure
13, where P636 = D13 Master MUP and MDO4 for each inverter is
used for reference deviation to the other slaves.
• Reference and feedback can be configured on either REF, AIN1, AIN2.
Wiring above in Figure 12 shows typical wiring with the reference via
AIN1 and feedback via AIN2.
The Multimaster configuration allows the runtime commutation of the
plant supervisor from MUP1 to MUP2 (see parameter C606).
To avoid uneven adjustment of the plant, the same settings are required
for both master drives, except for the Master Serial Link Menu.
Figure 13: Connection of the reference from Multimaster to Slave controlled via digital outputs and analog
reference
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