Installing A Communication Interface Module - Grundfos CRE Installation And Operating Instructions Manual

6.8 Installing a communication interface module

DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply to the motor and to the
signal relays. Wait at least 5 minutes before starting
any work on the motor. Make sure that the power
supply cannot be accidentally switched on.
Always use an antistatic service kit when handling
electronic components. This prevents static electricity
from damaging the components.
When unprotected, place the component on the antistatic
cloth.
Antistatic service kit
1. Loosen the four screws (figure below, A) and remove the
terminal box cover (B).
A
B
Removing the terminal box cover
2. Remove the CIM cover (figure below, A) by pressing the locking
tab (B) and lifting the end of the cover (C). Then lift the cover off
the hooks (D).
C
B
Removing the CIM cover
D
A
3. Remove the securing screw (figure below, A).
A
Removing the securing screw
4. Fit the CIM module by aligning it with the three plastic holders
(figure below, A) and the connecting plug (B). Press home the
module using your fingers.
A
Fitting the CIM module
5. Fit and tighten securing screw (figure Removing the securing
screw, A) to 1.3 Nm.
6. Make the electrical connections to the CIM module as described
in the instructions delivered with the module.
7. Connect the cable screens of the bus cables to ground via one
of the ground clamps (figure below, A).
Connecting the cable screens to ground
B
A
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