Kromschroder FCU 500, Technical Information

Page: 75 / 148

FCU 500, FCU 505 · Edition 02.17 75
Parameters
Name Parameter Value range Description Factory default settings
Air monitoring during controlled air flow 32
0
1
2
Off; maximum capacity
On; maximum capacity
Off; controller enable
1
Pre-purge time tPV 34 0 – 6000 Time in seconds 6000
Air flow monitoring during pre-purge 35
0
1
2
Off
With safety shut-down
With fault lock-out
2
Post-purge time tPN 37 0 – 6000 Time in seconds 6000
Air flow monitoring during post-purge 38
0
1
2
3
On; control element to maximum
capacity
Off; control element to maximum
capacity
Off; control element to ignition capacity
Off; control element controller enable
1
Capacity control 40
0
1
2
3
4
Off
With IC 20
With IC 40
With RBW
With frequency converter
FCU..F0 = 0
FCU..F1 = 1
FCU..F2 = 3
Running time selection 41
0
1
2
3
Off; checking the positions for minimum/
maximum capacity
On; for approaching the positions for
minimum/maximum capacity
On; for approaching the position for
maximum capacity
On; for approaching the position for
minimum capacity
0
Running time 42 0 – 250
Running time in seconds if parameter 41
= 1, 2 or 3
30
Controller enable signal delay time tRF 44 0 – 250 Time in seconds 0
Minimum enable time 45 0 – 250
Actuator in ignition position, waiting for
enable signal, time in seconds
0
Burner operating signal 46
0
1
Off
On; controller enable
0 (if P40 = 0)
1 (if P40 ≠ 0)
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