• 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 connection groups 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 and the Ethernet cable must be rated at least 250V/2A.
The 250V contacts of the alarm relays of these devices must not be connected directly to the supply mains, but energized by an
isolated power supply or transformer with galvanic isolation.
NC
C1
NO
NC
C2
NO
RJ45
DI3
24V AI2
5V
TX RX
DI4
PT2
PT1
LT1
LT2
S24 ST1 ST2
AO1
AI3
DI2
OFF ON
A
Y B
AI1
DI1
24V
5V
TM082862
Terminal Type Function
NC Normally closed contact
Signal relay 1: LIVE or SELVC1 Common
NO Normally open contact
NC Normally closed contact Signal relay 2: SELV only
16
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