Overview - Siemens SINAMICS V20 Operating Manual

Overview

Multi-pump control is suitable for applications that require simultaneous operation of up to
four pumps, for example, equalizing significantly fluctuating water pressures or flow rates.
After the multi-pump control is enabled, you can configure the following four sub-functions
based on your particular requirements: switching-in/out, stop mode, pump switchover, and
service mode.
Note
To control more than two pumps simultaneously, you must connect an optional I/O Extension
Module to expand the number of V20 I/O terminals. For more information about this option
module, see Section "I/O Extension Module" in "SINAMICS V20 Inverter Operating
Instructions".
Enabling the function
To enable this function, you must first make sure that the firmware version of the V20
inverter is 3.94 or later. Then, use the optional Parameter Loader and an SD card to
download the multi-pump control script files into the inverter. For more information about the
Parameter Loader and the SD card, see Section "Parameter Loader" in "SINAMICS V20
Inverter Operating Instructions".
Proceed through the following steps to download the script files into the inverter:
1. Download the script files "autorun.lua", "utils.lua", and "SSTAGE.bin" via the Internet
address (https://support.industry.siemens.com/cs/us/en/ps/13208).
2. Place "SSTAGE.bin" in the root directory of the SD card.
3. Create a folder named "romfs" under the root directory of the SD card and place
"autorun.lua" and "utils.lua" in the folder.
4. Fit the Parameter Loader to the inverter, and then insert the SD card into the Parameter
Loader.
5. Power on the inverter, and data transfer starts automatically. The inverter displays
"Updating" during the transfer.
6. After a successful transfer, the inverter displays "Update complete". If any fault or alarm
occurs during the transfer, see Section "Faults and alarms (Page 27)" or Section "Faults
and alarms" in "SINAMICS V20 Inverter Operating Instructions" for possible reasons and
remedies.
7. Remove the Parameter Loader and re-power on the inverter. Then the multi-pump control
function is automatically enabled.
SINAMICS V20 multi-pump control
Operating Manual, 05/2018, A5E43416874-002
1
5