Viessmann VITOLIGNO 300-P Service Instructions Manual page 83

Temperatures, boiler coding card and brief scans
Digital inputs 2
Position
A Pellet sensor on plug aNJ
B Pellet sensor on plug aNH
C Pellet sensor on plug aNG
D Feedback, cleaning motor for heating sur-
faces
E External demand
F External blocking
Digital outputs
Diagnosis
Status dig. ...
0 0 0 0 0 0 0 0
A B C D E F G H
Digital outputs 1
Position
A Charge motor
B
Discharge motor, room discharge with
flexible screw conveyor
C Discharge motor, silo or room discharge
with vacuum system
D —
E Vacuum module or flexible screw con-
veyor motor
F Cleaning motor for heating surfaces
(cont.)
Status
0 1
Pellets are in No pellets are in
front of the sen- front of the sen-
sor sor
Pellets are in No pellets are in
front of the sen- front of the sen-
sor sor
Pellets are in No pellets are in
front of the sen- front of the sen-
sor sor
No feedback Feedback ena-
bled
Input aVD open Input aVD
closed
Input aVD open Input aVD
closed
Status
0 1
OFF ON
OFF ON
OFF ON
— —
OFF ON
OFF ON
Service scans
83