Alarm message | Possible cause | |
Output power failure | Power flat cable for network is not installed in ArmorBlock base | |
(Critical) | properly | |
Pump failure | Circuit breaker or overload protector has tripped. | |
(Critical) | Contactor has malfunctioned. | |
Pump fault #1 | (Function determined by your facility.) | |
Pump fault #2 | (Function determined by your facility.) | |
Pump starter output failure | Patch cord for contactor is disconnected. | |
Patch cord for contactor has been cut. | ||
(Critical) | ||
Contactor coil is defective. | ||
| ||
Vent solenoid output failure | Patch cord for vent is disconnected. | |
Patch cord for vent has been cut. | ||
(Critical) | ||
Vent solenoid valve has malfunctioned. | ||
|
System Alarms
Alarm message | Possible cause | |
Central alarm failure | Patch cord for horn or strobe light is disconnected. | |
Patch cord for horn or strobe light has been cut. | ||
| All horns and strobe lights for this central alarm are defective. | |
| Power supply for a centralized purge valve is not turned on. | |
Centralized purge output power | Power supply for a centralized purge is not connected properly. | |
An ArmorBlock for centralized purge valves is defective. | ||
failure | ||
Base of an ArmorBlock for centralized purge valves is defective. | ||
(Critical) | ||
Power flat cable for network is not properly installed in the base of an | ||
| ||
| ArmorBlock for centralized purge valves. | |
| Patch cord for a centralized purge valve is disconnected. | |
| Patch cord for a centralized purge valve has been cut. | |
| Solenoid for a centralized purge valve has malfunctioned. | |
| An ArmorBlock for centralized purge valves is defective. | |
| Base of an ArmorBlock for centralized purge valves is defective. | |
Centralized purge valve failure | Network flat cable is not properly installed in the base of an | |
ArmorBlock for centralized purge valves. | ||
(Critical) |
| |
Note: Once you have found and corrected the cause of this alarm, | ||
| enable a station (p. 60) that uses the purge valve for which the alarm | |
| occurred. (To identify such a station, go to a Station Operator screen | |
| (p. 61) and navigate among the stations (p. 62) until you find a | |
| station assigned to this purge valve.) Once the system successfully | |
| uses this purge valve, it clears the alarm and enables all other | |
| stations that use this valve. | |
PLC low battery | Battery for the controller is defective. | |
Battery for the controller is old and drained. | ||
| ||
Scanner communication failure | Power supply for network is not turned on. | |
Power supply for network is not connected properly. | ||
(Critical) | Main enclosure is not connected properly. | |
| DeviceNet scanner is defective. | |
Scanner duplicate node | Two nodes (stations, pumps, central alarms, or centralized purge | |
(Critical) | valves) are assigned the same address. | |
Scanner incorrect node | The ArmorBlock for a pump has an address for a station. | |
assignment | The ArmorBlock for a central alarm has an address for a station. | |
(Critical) | The ArmorBlock for a station has an address for a pump. |
7/50D Plus or 7/50D Controller | Chapter 7: Troubleshooting | 83 |