Grundfos CU 362 - Page 21

Code Description Origin Cause Remedy
223
Mixer max. no. of starts
per hour exceeded
CU 362 Maximum starts reached Check settings of mixer.
224
Pump malfunction due to
aux. component fault
CU 362 Aux. component fault Check pump for auxiliary component faults.
225
Distrib. pump module
communication fault
IO 113/MP
204
Communication fault Check communication connections to IO 113/MP 204.
226
Distributed I/O module
communication fault
IO 351 Communication fault
Check GENI cable between CU 362 and IO 351. Check
IO 351 GENI address.
227 Combi event No. 1/2/3/4 CU 362
Combi event alarm
occurred
Check reason why user-defined combi alarms have
been triggered.
228 High flow CU 362 DI
External flowmeter high
flow alarm active
Check external flowmeter.
229 Water on pit floor CU 362 DI Water on pit floor detected Check reason for water on pit floor.
231
Ethernet: No IP address
from DHCP server
CU 362
No IP address has
been assigned to controller
Check external router configuration.
232
Ethernet: Auto-disabled
due to misuse
CU 362
Misuse of Ethernet
connection
Check external router configuration.
235 Gas detected CU 362 DI Gas detected Check status of gas detector sensor.
240
Lubricate bearings
(specific service
information)
CUE
Lubricate bearings
reported by CUE
Check local alarms and instructions on CUE.
241 Motor phase failure
CU 362
DI/CUE
Phase failure detected Check all incoming phases.
242
Automatic motor-model
recognition failed
CUE Reported by CUE Check CUE local HMI for fault description.
243
Relay has been forced
(Manually operated/
commanded)
CU 362 DI
Motor relay activated
manually
Motor feedback reports that relay has been activated
manually. Check motor relay.
245
Pump max. continuous
runtime limit exceeded
CU 362
Alarm for latest runtime
exceeded
Check settings. Check pump, valves and pipes for
blockages.
246 Custom relay activated CU 362
User-defined relay
activated
User-defined relay activated remotely. Contact the
SCADA responsible.
247 Power-on occurred CU 362 Power cycle Check reason for local power cycle.
248 Battery/UPS fault CU 362 Battery/UPS fault Check backup battery. Replace backup battery.
249 User-defined event 1 CU 362 User-defined fault 1
Check reason why user-defined fault 1 has been
triggered.
250 User-defined event 2 CU 362 User-defined fault 2
Check reason why user-defined fault 2 has been
triggered.
251 User-defined event 3 CU 362 User-defined fault 3
Check reason why user-defined fault 3 has been
triggered.
252 User-defined event 4 CU 362 User-defined fault 4
Check reason why user-defined fault 4 has been
triggered.
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