CleaverBrooks CFC-500 Operation, Service And Parts Manual page 302

CB FALCON MODBUS COMMUNICATION
Table 8. Falcon lockout and hold codes
Code Description
0 None
1 Unconfigured safety data
2 Waiting for safety data verification
3 Internal fault: Hardware fault
4 Internal fault: Safety Relay key
feedback error
5 Internal fault: Unstable power (DCDC)
output
6 Internal fault: Invalid processor clock
7 Internal fault: Safety relay drive error
8 Internal fault: Zero crossing not detected Hold
9 Internal fault: Flame bias out of range
10 Internal fault: Invalid Burner control state Lockout
11 Internal fault: Invalid Burner control
state flag
12 Internal fault: Safety relay drive cap short Hold
13 Internal fault: PII shorted to ILK
14 Internal fault: HFS shorted to LCI
15
Internal fault: Safety relay test failed
due to feedback ON
16 Internal fault: Safety relay test failed
due to safety relay OFF
17 Internal fault: Safety relay test failed
due to safety relay not OFF
18 Internal fault: Safety relay test failed
due to feedback not ON
19 Internal fault: Safety RAM write
20 Internal fault: Flame ripple and overflow Hold
21 Internal fault: Flame number of
sample mismatch
22 Internal fault: Flame bias out of range
23 Internal fault: Bias changed since
heating cycle starts
24
Internal fault: Spark voltage stuck low
or high
25 Internal fault: Spark voltage changed too
much during flame sensing time
26 Internal fault: Static flame ripple
27 Internal fault: Flame rod shorted to
ground detected
28 Internal fault: A/D linearity test fails
29 Internal fault: Flame bias cannot be set
in range
30
Internal fault: Flame bias shorted
to adjacent pin
31 Internal fault: SLO electronics
unknown error
32 Internal fault: Safety Key 0
Table 8. Falcon lockout and hold codes
33 Internal fault: Safety Key 1
Note
34 Internal fault: Safety Key 2
No lockout/
35 Internal fault: Safety Key 3
hold
36 Internal fault: Safety Key 4
Lockout
37 Internal fault: Safety Key 5
Lockout
38 Internal fault: Safety Key 6
Hold
39 Internal fault: Safety Key 7
Hold
40 Internal fault: Safety Key 8
41 Internal fault: Safety Key 9
Hold
42 Internal fault: Safety Key 10
Hold
43 Internal fault: Safety Key 11
Hold
44 Internal fault: Safety Key 12
45 Internal fault: Safety Key 13
Hold
46 Internal fault: Safety Key 14
47 Flame rod to ground leakage
Lockout
48 Static flame (not flickering)
49 24VAC voltage low/high
50 Modulation fault
Hold/
51 Pump fault
Lockout
52 Motor tachometer fault
Hold/
Lockout
53 AC inputs phase reversed
Lockout
54 Safety GVT model ID doesn't
match application's model ID
Lockout
55 Application configuration data block CRC
errors
Lockout
56-57 RESERVED
58 Internal fault: HFS shorted to IAS
Lockout
59 Internal fault: Mux pin shorted
60 Internal fault: HFS shorted to LFS
Lockout
61 Anti short cycle
62 Fan speed not proved
Hold
63 LCI OFF
64 PII OFF
Hold
Hold
65 Interrupted Airflow Switch OFF
Hold
66 Interrupted Airflow Switch ON
Hold
67 ILK OFF
Hold
68 ILK ON
Hold
69 Pilot test hold
Hold
70 Wait for leakage test completion
Hold
71-77 RESERVED
78 Demand lost in run
Hold
79 Outlet high limit
Hold
80 DHW high limit
Lockout
32
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Hold
Hold
Hold
Hold
Hold
Hold
Lockout
Lockout
Lockout
Lockout
Lockout
Lockout
Hold
Hold
Hold
Hold/
Lockout
Hold/
Lockout
Hold/
Lockout
Hold/
Lockout
Hold/
Lockout
Hold
Hold
Hold
Hold/
Lockout
Hold/
Lockout