Inhaltsverzeichnis; Applications - Grundfos IO 401 Montage- Und Betriebsanleitung

CONTENTS
1. Applications
2. IO 401 module
3. Mounting
4. Indicator lights
5. Electrical data
5.1 Inputs
5.2 Outputs
5.3 Terminals
5.4 Conductors
6. Technical data
7. Module bus
8. Terminator
9. Connection of impedance protection
module FB 101
10. Replacement of IO 401
11. Block diagram
12. Example of wiring diagram
13. Maintenance
14. Dimensions
15. Disposal
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local regula-
tions and accepted codes of good prac-
tice.
All wires to units outside the control panel
must be of the type H05VV-F according to
CENELEC HD21 (to avoid injury from
touching wires).

1. Applications

The IO 401 is a digital and analog module. This mod-
ule is connected to the CU 401 control unit and when
combined, they function as a pump controller which
is capable of controlling one or two Grundfos pumps.
The IO 401 module is divided into two galvanically
separated parts for the control of two pumps. Via the
impedance protection module FB 101, the phase
sequence detector incorporated in the module must
be connected to the same electricity supply as the
pump.
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