Grundfos CRE Safety Instructions And Other Important Information page 12

NC C1 NO NC C2
7.13 Installing a communication interface module
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply to the
product including the power supply for
the signal relays. Wait at least 5
minutes before you make any
connections in the terminal box. Make
sure that the power supply cannot be
switched on accidentally.
8. Starting up the product
WARNING
Rotating parts
Death or serious personal injury
‐
Make sure to install the coupling
guards before powering on the
product.
WARNING
Corrosive liquids
Death or serious personal injury
‐
Wear personal protective equipment.
12
RJ45
NO DI3 24V
5V A Y
AI2 5V TX RX
OFF ON
B AI1 DI1 24V AO1
WARNING
Toxic liquids
Death or serious personal injury
‐
Wear personal protective equipment.
CAUTION
Cold surface
Minor or moderate personal injury
‐
Make sure that no one can accidentally
come into contact with cold surfaces.
Wear protective gloves.
CAUTION
Hot surface
Minor or moderate personal injury
‐
Do not touch the product while it is
running.
Follow the startup instructions for the
pump. See the related installation and
operating instructions for the pump.
S24 ST1 ST2
DI4 PT2 PT1 LT1 LT2
AI3 DI2