- 36 -
User Manual Digital Heat Regulators
English
Neutral zone operating mode [PRO=2]
• In this mode, output 1 operates in
reverse
and output 2 in direct.
The set point 1
[ST1]
, differential 1
[DF1]
and neutral zone
[DBN]
values have
to be set. These are parameters for both outputs.
The regulator will tend to maintain the measurement controlled within the neutral
zone. Outside of this, output 2 will be activated if the measurement tends to
increase, or output 1 if it tends to decrease.
If a single output is present, this will operate in
reverse
, with the hysteresis shifted
towards the left of the value
[DBN]
.
PWM operating mode [PRO=5]
• The regulation logic in this mode is the same as that with the neutral zone.
It is therefore necessary to set the set point 1
[ST1]
, differential 1
[DF1]
and
neutral zone [DBN]
values, which are parameters for both outputs.
In this operating mode, the relays are activated impulsively, with an interval that
can be set on the basis of the
[TCL]
value (see the output menu).
Within this interval, the relay will stay on for a period in proportion to the distance
of the measurement regulated from the set point (plus the neutral zone, where
applicable).
In addition to the differential value, the relay will be active for 100% of the time.
Operating mode with Direct/Reverse switching from digital input.
[PRO=6]
• In this mode, both outputs operate in
direct
(with set point 1 and differential 1)
or
reverse
(with set point 2 and differential 2) depending on the status of
the digital input.
More precisely, in
direct
if the digital input is open and in
reverse
if closed.
The operating modes are the same as modes 0 and 1.
PRO=2 mode
Set 1
R
ON
OFF
Diff. 1
OUT 1
2 outputs
D
Diff. 1
OUT 2
ZN ZN
Set 1
R
ON
OFF
Diff. 1
OUT 1
1 output
ZN
PRO=5 mode
Set 1
R
ON
OFF
Diff. 1
OUT 1
1 output
ZN
Set 1
R
ON
OFF
Diff. 1
OUT 1
2 outputs
D
Diff. 1
OUT 2
ZN ZN
En
gl
is
h
