Azbil AUR890 Series, Руководство пользователя

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Chapter 6. Maintenance and Inspection
„
Alarm codes and details
When lock-out occurs, an alarm code is displayed automatically. When an alarm
occurs, the sequence number and alarm code issued when the lock-out.”
Alarm code Sub-code Description Status
E 1
None False flame The flame signal is detected for 15 s during pre-purge
E6
Ignition failure Ignition was not detected during the lockout time.
E7
Flame failure The flame signal disappeared during standby for normal combustion or thereafter.
E9 02
Switch input error The DISP switch, RESET switch or reset input stayed on for 60 seconds.
Note: Monitoring is continuous while power is supplied.
E9 03
Internal relay feedback (K1) Relay K1 failure (contact welding)
Note: If this error recurs even after a manual reset, a device failure may have
occurred.
E9 05
Terminal 7 voltage discrepancy (PV) At terminal 7, while pilot valve or main valve output was OFF, voltage was detected
for 30 seconds.
Note: This error can occur because of a ground fault, voltage supply to terminal
7 from an external circuit (bypass circuit, etc.), or relay K3 failure (contact
welding, etc.).
E9 06
Terminal 8 voltage discrepancy (MV) At terminal 8, while main valve output was OFF, voltage was detected for 30
seconds.
Note: This error can occur because of a ground fault, voltage supply to terminal
8 from an external circuit (bypass circuit, etc.), or relay K4 failure (contact
welding, etc.).
E9 07
Terminal 6 voltage discrepancy (IG) At terminal 6, while the ignition transformer output was OFF, voltage was detected
for 30 seconds.
Note: This error can occur because of a ground fault, voltage supply to terminal
6 from an external circuit (bypass circuit, etc.), or relay K5 failure (contact
welding, etc.).
E9 08
Alarm generation when power is
turned ON When the cause of lock-out cannot be identified
• Power was turned off before CPU error judgment after lock-out occurred
• Latch relay was set to lock-out due to vibration during transport or for other
reasons
E9
50
to
70
Other problems Device failure or malfunction due to external electrical noise
* Check that there is no grounding failure, and that high-voltage cables and signal
wires do not run together.
If there is an inverter or the like that generates strong electrical noise near this
device, take noise-suppression measures, referring to the user's manual for the
noise-generating equipment.
Note: If this error recurs even after a manual reset, a device failure may have
occurred.
• If the sequence cannot be specified, the sequence code displayed when lockout occurred may be shown as [– –]
(stopped).