26
10. CU 351 internal fault
*Real time clock out of
order
157
CU 351
a) The real-time clock in
CU 351 is out of
order.
Replace the CU 351
Auto
Warning
Unchanged
11. Ethernet fault
*Ethernet: No address
from DHCP server
231
a) No address from
DHCP server
1. Communication error.
2. Please contact the
system integrator.
12. Ethernet fault
*Ethernet: Auto disabled
due to misuse
232
a) Auto-disabled due to
misuse
13. FLASH parameter
verification error
*FLASH parameter
verification error
083
a) Verification error in
CU 351 FLASH
memory
Replace the CU 351
14. IO 351 internal fault
*Hardware fault type 2
080
IO 351
a) IO 351 pump module
hardware fault
See current alarms and
identify the faulty IO 351
module from the alarm
message and replace the
module.
b) IO 351 I/O module
hardware fault
15. VFD not ready
*VFD not ready
213
Pump 1-6
CU 351
a) The VFD signal relay
do not release the
VFD for operation
1. Check for VFD alarm
2. Check the wiring and
input according to the
wiring diagram.
16. Communication fault
*Pump communication
fault
010
Pump 1-6
IO 351
a) No GeniBus
communication with a
device connected to
CU 351
See actual alarms and
identify the faulty device
from the alarm message.
1. Check power supply
2. Check GeniBus cable
connection
3. Check, with R100, that
the device GeniBus no. is
correct.
17. Device alarms
From
device
Pump 1-6
a) The device is in alarm
See actual alarms and
identify the faulty device
from the alarm message.
1. Fault find according to
the service instruction for
the device.
1) Reset type is either fixed as "Auto acknowledge" (Auto) or can be programmed to be Auto or manual ackknowledge (Auto/Man)*.
2) Programmable action types:
- Go to operating mode "Stop" (no delay (<0.5 s) between pump disconnections).
- Go to operating mode "Min".
- Go to operating mode "User-defined".
- Go to operating mode "Max".
- Set pumps in source mode "Local". - No action (warning only)
MPC alarm indication
"Protocol description"
Alarm
code
Associated
device and
device no.
Description/cause
Remedy
Reset
type
1
Alarm/warning
Action type
2
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