Terminal Type Function
Y GENIbus, Y GENIbus, GND / Modbus, GND
B GENIbus, B GENIbus, B (-) / Modbus, D0 (-)
AI1 AI1
Analog input:
• 0-20 mA or 4-20 mA
• 0.5 - 3.5 V, 0-5 V or 0-10 V.
DI1 DI1
Digital input, configurable
Digital input 1 is factory-set to be start or
stop input where an open circuit results in
stop. A jumper has been factory-fitted
between terminals DI1 and GND. Remove
the jumper if digital input 1 is to be used as
external start or stop or any other external
function.
24V +24 V Power supply
GND GND Signal ground
S24 +24 V (STO) Power supply to the Safe Torque Off inputs
ST1 STO1 Safe Torque Off - Input 1
ST2 STO2 Safe Torque Off - Input 2
6.9.2 Functional module, FM310 and FM311
Inputs and outputs
The FM311 functional module does not
include Bluetooth connection.
The module has these connections:
• three analog inputs
• one analog output
• two dedicated digital inputs
• two configurable digital inputs or open-collector
outputs
• Grundfos Digital Sensor input and output
• two Pt100/1000 inputs
• two LiqTec sensor inputs
• two signal relay outputs
• GENIbus/Modbus connection
• two Safe Torque Off (STO) inputs
• Ethernet connection
• Bluetooth (BLE) connection.
4)
4)
FM311 is without Bluetooth.
Signal relay 1
LIVE: You can connect supply voltages up to 250
VAC to the output.
SELV: The output is galvanically separated from other
circuits. Therefore, you can connect the supply
voltage or safety extra-low voltage to the output as
desired.
Signal relay 2
SELV: The output is galvanically separated from other
circuits. Therefore, you can connect the supply
voltage or safety extra-low voltage to the output as
desired.
Connection terminals for inputs and outputs
WARNING
Electric shock
Death or serious personal injury
‐ Make sure that the wires to be
connected to the relays below are
separated from each other by
reinforced insulation in their entire
lengths.
The inputs and outputs are internally separated from
the power supply-conducting parts by reinforced
insulation and galvanically separated from other
circuits. All control terminals are supplied with safety
extra-low voltage (SELV), ensuring protection against
electric shock.
Cables for the relays must be double insulated or
reinforced and rated at least 250V/2A.
The Ethernet cable must be rated at least Cat5e/Cat6
with screening.
The 250V contacts of the alarm relay
(NC/C1/NO) on the functional modules
FM310 and FM311 must not be connected
directly to the mains supply, but energized
by an isolated power supply or transformer
with galvanic isolation.
21
English (GB)
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