29
10. MP 204 with GENIbus
If several MP 204 units are connected to the same
GENIbus, the connection is to be made as shown in
fig. 23.
Note the connection of screen to conductive support.
If the GENIbus has been in use, and bus communi-
cation monitoring has been activated, the MP 204
will continue to monitor the bus activity. If the
MP 204 does not receive GENIbus telegrams, the
MP 204 presumes that the GENIbus connection has
been disconnected and indicates a fault on the indi-
vidual units.
Each of the units in the chain must be assigned an
identification number with the R100, see section
9.4.7.
For further information about the GENIbus, see
WebCAPS at www.grundfos.com.
Fig. 23 GENIbus
11. Approvals and standards
The MP 204 conforms to:
• UL 508
• IEC 947
• IEC/EN 60335-1
• IEC/EN 61000-5-1
• IEC 61000-6-3
• IEC 61000-6-2
• EN 61000-6-3
• EN 61000-4-5
• EN 61000-4-4
• EN 61000-4-6.
12. Pump operation with MP 204
12.1 Industrial pumps
Industrial pumps may incorporate a PTC/thermal
switch to be connected direct to the MP 204.
Industrial pumps mainly apply IEC trip classes
20 to 30, depending on the liquid viscosity.
TM03 0173 4304
A
Y
B
MP 204
MP 204
CU 401
A
B
Y
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