Sales release of SINAMICS V20 multi-pump function
The inverter soft-starts the pumps one by one during switch-in sequence to achieve required system pressure. The inverter stages off the pumps one by one during switch-out sequence if the feedback pressure is higher than the required system pressure.
Two stop modes are available: Normal stop (all pumps in line system operation stop at the same time) and Sequence stop (all pumps in line system operation stop one by one).
With pump switchover enabled, the Inverter monitors the operating status of all running pumps and manages pumps staging on/off according to continuous operating hours, in order to prolong the system lifetime.
When a pump is in service mode, the inverter locks the corresponding relay, which allows you to perform troubleshooting of this pump without interrupting the operation of other pumps.
Enabling multi pump function
To enable this function, you must first download the multi-pump control script files to the inverter with the optional Parameter Loader and an SD card. Proceed through certain steps to download the script files into the inverter and apply.
Multi-pump control script file:
For V20 Firmware version V03.94.05.00 (6,5 KB)
For V20 Firmware version V03.94.09.00 and above (5,9 KB)
For detail steps, please refer to SINAMICS V20 Multi-pump Control Operating Manual:
V20_multi_pump_op_man_0819_en-US.pdf (3,1 MB)