Honeywell SV2 Series User Manual page 215

Address Type Valve
Model
Dec Hex
64 40
65 41
66 42
Fuel / Air V2V
67 43
218 DA
219 DB
SV2 Series Safety Shut-off Valves
V2F, V2V
Intelligence Description
Level
Ignition Setpoint
Ignition Period
Ignition Ramp Offset
Standard
Ignition Default Position 2
S1 pre-ignition lower threshold
S1 pre-ignition upper threshold
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Data Content
Type
% of RUN mode target amplification as
given by Fuel/Air curve at the ignition load
S16 (ignition S1). Determines the target value
for fuel/air control during the Ignition Period
(holding register 65)
Ignition period in seconds. Includes the
Ramp Period, the Hold On Period and the
remaining period in which the controlled
U16 amplification setting can be changed
relative to the normal amplification setting
at the start load / RUN as governed by the
Ignition Setpoint (holding register 64)
This sets the number of steps that the
Learnt Pos. 2 is reduced or offset during
ignition. Once the valve seats are powered,
the stepper motor moves from this position
S16
to the Learnt Pos. 2 position during the
Ignition Ramp Period time (HR341)
Register content is scaled by 4
(i.e. value of 4 is one full step)
In half steps.
Used for the first/initial stepper motor
ignition start position 2 by OEM in lab.
U16
Note that valve will learn and record the
appropriate stepper motor position with
each light-off. Saved as the Learnt Pos. 2
(IR125)
A % that the air S1 signal can be below the
recorded / commissioned air signal during
U16
ignition. If the air signal drops below this
value the valve will lockout
A % that the air S1 signal can be over the
recorded / commissioned air signal during
U16
ignition. If the air signal raises above this
value, the valve will lockout.
215
Range Default
Value
Min Max
70 150 100
Ignition
Ramp time
(HR341)
+ Ignition
5 * 10 3 * 10
Hold
On time
(HR340) +
1 sec
-4 * 50 -4 * 34 -32768
1.0in /
DN25
=821
1.5in /
0 DN40 -32768
=1412
2.0in /
DN50
=1412
50 95 80
105 150 120