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Controller Fault Condition Displays
Below are examples and explanations of the displays which accompany the fault conditions possible in the ROC-4. Fault conditions always
indicated a problem of some sort which requires corrective action. The displays provide sufficient information to recognize the source of the
fault and the required corrective action.
High Pressure Fault:
(Occurs when High Pressure Switch Closes)
Line 1 “Service Fault”
Line 2 “High System Pressure”
Line 3
Line 4 “To Reset Push OFF/ON”
Low Pressure Fault:
(System is responding to low pressure condition per system settings)
Line 1 “Service Fault”
Line 2 “Low Feed Pressure”
Line 3
Line 4 “Restart in MM:SS”
Pre Treat Fault:
(Pretreat Switch is closed indicating problem with pretreat system).
Line 1 “Service Fault”
Line 2 “Pretreat”
Line 3
Line 4 “Check Pretreat Sys.”
Permeate Conductivity Fault:
(Permeate conductivity is higher than the alarm set point.)
Line 1 “Service Fault”
Line 2 “Permeate TDS xxx ppm” or “Permeate Cond xxx uS”
Line 3 “Alarm SP xxx ppm” or “Alarm SP xxx uS”
Line 4 “To Reset Push OFF/ON”
Feed Conductivity Fault:
(Feed conductivity is higher than the alarm set point.)
Line 1 “Service Fault”
Line 2 “Feed TDS xxx ppm” or “Feed Cond xxx uS”
Line 3 “Alarm SP xxx ppm” or “Alarm SP xxx uS”
Line 4 “To Reset Push OFF/ON”
Conductivity Probe Error messages:
Line 2 “Over-range”
- Measurement is out of range for the circuit, probe may also be shorted
Line 2 “Probe shorted”
- Short circuit detected on temperature sensor in probe
Line 2 “Probe not detected” - Open circuit detected on temperature sensor in probe
Line 2 “Probe Startup 1”
- Internal reference voltage too high to make valid measurement
Line 2 “Probe Startup 2”
- Internal reference voltage too low to make valid measurement
Line 2 “Probe Startup 3”
- Internal excitation voltage too high to make valid measurement
Line 2 “Probe Startup 4”,
- Internal excitation voltage too low to make valid measurement
Содержание Pure Water PWR4021 Series
Страница 6: ...6 Figure 2 B Controller Drawing...
Страница 7: ...7 B Controller Drawing continued Figure 3...
Страница 13: ...13 Figure 6 Wiring Diagram Pictorial Schematic of a Typical ROC 4 System...
Страница 15: ...15 Figure 8 Controller Detail Terminal Board TB 3 See Fig 3 for schematic TB24V3...
Страница 20: ...20 Figure 11 Controller Programming Menu Navigation...
Страница 31: ...31 Notes...
