Technical Data; Module Bus; Terminator; Connection Of Impedance Protection Module Fb - Grundfos IO 401 Montage- Und Betriebsanleitung

6. Technical data

Supply voltage
24 VDC ±7% via module bus from CU 401.
Current consumption
Max. 5.6 W when all inputs and outputs are active.
• 24 V ~ 260 mA.
• 5 V ~ 86 mA.

7. Module bus

8. Terminator

9. Connection of impedance protection module FB 101

For supply
The module bus is the electrical connection between
the modules. Up to 12 modules can be connected.
The total current consumption must not exceed
• 2 A at 24 V and
• 1.5 A at 5 V.
See installation and operating instructions for the module
in question.
Module bus
The last module in the row must be terminated by
a terminator.
See illustration.
The input for phase sequence detection is designed for
three connections for low voltage/current. The module
detects wrong phase sequence and missing phase.
The IO 401 input is protected by the FB 101 impedance
protection module.
• Connect the FB 101 module to the same three-phase
supply as the pumps.
• See section 12. Example of wiring diagram.
To IO 401
Ambient temperature
• During operation: –20°C to +60°C
(must not be exposed to direct sunlight).
• In stock: –25°C to +85°C.
• During transportation: –25°C to +85°C.
Relative air humidity
From 5% to 95%.
Materials
Enclosure class: IP 20.
Plastic type: Black PC / ABS.
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