MIOX RIO H4 - Fault Conditions

MIOX RIO Series Operators Manual
P/N: 102-00076-G Page 53
Fault Conditions
Anything that stops the system is considered a fault. There are two types of faults: soft
and hard. With a soft fault, the system will automatically restart when the conditions
that caused it go away. A hard fault requires user intervention to reset the system.
Response of the system to any given fault will vary depending on the condition (Table
12). Certain types of hard faults will allow the system to automatically reset in an
attempt to recover the system. The system can make up to three attempts to
automatically reset before requiring user intervention. The system will consider itself
recovered when it is running at full operational current for more than 10 minutes.
Table 12 Fault Conditions
Fault Name Condition
T ime
Delay
(sec)
Cell
Power
Removed
W ater
Off
Auto
Retry
Delta Temp Fault
Temp difference between I/O
greater than 50° F or less than
-10° F
45 NO NO NO
Dilution Air (DA) Failure
Fault
DA status signal off when DA
enable signal on.
5 YES NO NO
Interlock Trip 1 Bottom rear interlock tripped.
2 YES NO NO
Interlock Trip 2 Bottom front interlock tripped.
2 YES NO NO
Interlock Trip 3 Top rear interlock tripped.
2 YES NO NO
Interlock Trip 4 Top front interlock tripped.
2
YES
NO
NO
Hardness Monitor
Fault
Hardness monitor trips while
running.
0 NO NO NO
Hydrogen Monitor
Fault
Hydrogen monitor trips while
running.
0 YES NO NO
Flow Sensor Loss
No pulses from sensor while
flow control is running.
5 YES
NO NO
Feed Water Flow
Rate - Low
Feed water flow rate less than
90% of target.
30
NO
NO
YES
Feed Water Flow
Rate - High
Feed water flow rate more than
110% target.
30 NO NO NO