Table 58: Definition of terms for multiple pump configurations
Term
Definition
Active master
control panel
▪
All Advanced control panels are configured to act as an
auxiliary master control panel. When the system is started,
one of the Advanced control panels is assigned the role of
active master control panel, as described below.
▪
Controls all the PumpDrives in a multiple pump
configuration
▪
Can parameterise all the PumpDrives in a multiple pump
configuration
Auxiliary master
control panel
▪
All Advanced control panels are configured to act as an
auxiliary master control panel. When the system is started,
one of the Advanced control panels is assigned the role of
active master control panel, as described below.
▪
Controls all the PumpDrives in a multiple pump
configuration if the active master control panel fails
(becomes the active master control panel).
▪
Can only parameterise the PumpDrive on which the
Advanced control panel is installed.
Main pump
▪
PumpDrive with sensor connections and active master
control panel
Auxiliary main
pump
▪
PumpDrive with sensor connections
▪
Takes over as the main pump if the main pump fails.
Slave pump
▪
PumpDrive without sensor connection
When PumpDrive is supplied ready mounted on the motor (motor-mounted model
MM), the motor parameters have already been set at the factory. If PumpDrive is to
be mounted on the wall (WM) or in a control cabinet (CM), check whether the
factory-set motor parameters agree with the specifications on the motor rating plate
and adjust, if necessary.
Application-specific wiring diagrams (
In multiple pump configurations, digital inputs 1 and 6 of all PumpDrives have to be
connected to a 24 V supply.
Digital input 1: Enables the respective PumpDrive. If digital input 1 is not connected
to 24 V, the relevant PumpDrive in a multiple pump configuration will not be used as
an active frequency inverter, i.e. this device will not be activated.
Digital input 6: Multiple pump operation. Every main pump and auxiliary main pump
requires a start signal at digital input 2. Start signals for different PumpDrives have to
be connected by electrically isolated contacts. Before commissioning, ensure that the
enable functions and the system start function are deactivated so that the system
does not start in an undefined condition.
▪
Ensure that all PumpDrives in a multiple pump configuration are set to automatic
mode.
It is basically possible to parameterise and to control (e.g. manual mode, OFF) all
PumpDrives connected to the KSB local bus using the active master control panel.
Role assignment when voltage is applied
The active and auxiliary master control panel are assigned their roles automatically
when voltage is applied (power is supplied). The PumpDrive Advanced model that is
first supplied with voltage automatically takes over the role of the active master
control panel controlling the main pump. Every PumpDrive Advanced model
connected in addition will assume the role of an auxiliary master control panel
controlling the auxiliary main pump. It is advisable to first switch on the PumpDrive
which is intended to be the active master control panel and after that the
PumpDrives that are to serve as auxiliary master control panels. If time-delayed
voltage supply to the PumpDrives is possible, power has to be applied in the
following sequence:
▪
Master control panel/main pump
▪
Aux. master control panel/auxiliary main pump
7 Commissioning/shutdown
PumpDrive
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