Control modes:

• Δp-v for variable differential pressure
• Δp-c for constant differential pressure
• Constant speed
• User-defined PID control

Manual settings:

• Setting the control mode
• Setting the related operating parameters
• Parameterising the analogue inputs
• Parameterising the digital input
• Parameterising the relay outputs
• Twin-head pump function
• Key lock for disabling the settings
• Function for resetting to factory setting

Automatic functions:

• Power adjustment according to requirements for energy-efficient operation depending on the control mode
• Automatic troubleshooting routines
• Integrated full motor protection

External control inputs and outputs and their functions

• 1 x analogue input:
  • Signal types: 0 … 10 V, 2 … 10 V, 0 … 20 mA, 4 … 20 mA
  • Application: only sensor value from differential pressure sensor (installed serially on the pump as standard)
• 1 x analogue input:
  • Signal types: 0 … 10 V, 2 … 10 V, 0 … 20 mA, 4 … 20 mA
  • Application: only external setpoint sensor
• 1 x digital input:
  • Control input for “External OFF” function
• 2x relay output:
  • Collective fault signal SSM (potential-free changeover contact)
  • Collective run signal SBM (potential-free changeover contact)
• Wilo Net
  • For dual pump management

Signal and display functions

• Display status of “Operation display”:
  • Current control mode
  • Setpoint
  • Actual delivery head
  • Actual speed
  • Actual volume flow
  • Electrical power consumption
• Status display LED: Faultless operation (green LED), pump communication (blue LED)
• Display status of “Display fault” (display red):
  • Error codes
• Display status of “Display warning” (display yellow):
  • Warning codes
• Display status of “Process indicator” (display blue):
• Display status of “Building automation (BA) communication” (display blue):
• Summary of the active building automation (BA) parameters (baud rate, address, etc.)
• Collective fault signal SSM (potential-free changeover contact)
• Collective run signal SBM (potential-free changeover contact)

Data exchange

• Possible with accessories of corresponding Wilo-CIF modules:
  • Serial digital Modbus RTU interface for connection to building automation (BA) via RS485 bus system
  • Serial digital BACnet MS/TP interface for connection to building automation (BA) via RS485 bus system
  • Serial digital interface for Ethernet Multiprotocol Modbus TCP, BACnet/IP for connection to building automation (BA) via RJ45 bus system
  • Serial digital LON interface for connection to building automation (BA) via LONWorks bus system
  • Serial digital PLR interface for connection to BA via company-specific coupling module
  • Serial digital CANopen interface for connection to BA via company-specific coupling module

Dual pump management (twin-head pump or 2 x single pumps in Y-piece)

• Main/standby operation (time-dependent pump cycling)
• Main/standby operation (automatic fault-actuated switchover)
• Parallel operation (efficiency-optimised peak load cut-in and out)

Equipment

• Pump hydraulics with minimum efficiency index MEI ≥ 0.4
• EC motor with efficiency class IE5 according to IEC 60034-30-2
• Flange PN 16 – according to EN 1092-2
• Pressure measuring connections (R 1/8) for mounted differential pressure sensor (version …-R1 without differential pressure sensor)
• Standard condensate drainage holes in the lantern and in the motor housing (closed upon delivery)
• Air vent valve on the lantern
• Rotatable colour graphics display (2 inch) with green button and one key
• Six cable inlets for connecting the power supply and the binary and analogue inputs (two cable entries factory-fitted with threaded cable glands)
• Optionally usable CIF module slot