Omega Engineering CN 79000 Thermostat User Manual


 
age 17 of 40
If
EditEdit
EditEdit
Edit is set to
11
11
1 or
33
33
3, begin.
If
EditEdit
EditEdit
Edit is set to
22
22
2, jump to
Out2Out2
Out2Out2
Out2 on page 20.
Out1Out1
Out1Out1
Out1 Output selection: Select
OnOfOnOf
OnOfOnOf
OnOf,
1tP1tP
1tP1tP
1tP, or
1PuL1PuL
1PuL1PuL
1PuL.
ONOFONOF
ONOFONOF
ONOF A setting of
ONOFONOF
ONOFONOF
ONOF allows the control to operate as
a simple on/off mode. This setting forces the
control to turn off at set point, and on at the set
point plus the differential (
SP1dSP1d
SP1dSP1d
SP1d). When selected,
the
Out1Out1
Out1Out1
Out1/
OnOFOnOF
OnOFOnOF
OnOF menu item is followed by ####/
SP1dSP1d
SP1dSP1d
SP1d,
and the
tun1tun1
tun1tun1
tun1,
Pb1Pb1
Pb1Pb1
Pb1,
rES1rES1
rES1rES1
rES1,
OFS1OFS1
OFS1OFS1
OFS1,
rtE1rtE1
rtE1rtE1
rtE1, and
ArS1ArS1
ArS1ArS1
ArS1
selections in the Secondary menu and the
S1OLS1OL
S1OLS1OL
S1OL
and
S1OHS1OH
S1OHS1OH
S1OH selections in the Secure menu are sup-
pressed.
SP1dSP1d
SP1dSP1d
SP1d Set Point On-Off Differential (hysteresis).
Select
11
11
1 to
99999999
99999999
9999 (direct acting), or
-1-1
-1-1
-1 to
-9999-9999
-9999-9999
-9999 (reverse acting). This value will be
negative for reverse acting set points, and
positive for direct acting outputs. Set the
value for the amount of difference between
the turn off point (set point) and the turn on
point. The following drawing shows output
behavior for reverse and direct action.
##
tPtP
tPtP
tP Time Proportioning Cycle Time. Select
1tP1tP
1tP1tP
1tP to
80tP80tP
80tP80tP
80tP.
1tP1tP
1tP1tP
1tP A setting of
1tP1tP
1tP1tP
1tP is recommended for solid
state outputs (SSR, DC SSR, or 5VDC).
2tP2tP
2tP2tP
2tP to
80tP80tP
80tP80tP
80tP Time Proportioning Control is ad-
justable in 1 second steps. Recommended
for mechanical outputs (relays, solenoids,
etc.). For best contact life, a time should
be selected as long as possible without
causing the process to wander.
#
PuLPuL
PuLPuL
PuL Pulsed Time Proportioning Output: Select
1PuL1PuL
1PuL1PuL
1PuL to
7PuL7PuL
7PuL7PuL
7PuL.
1PuL1PuL
1PuL1PuL
1PuL = Linear and
7PuL7PuL
7PuL7PuL
7PuL =
most nonlinear. Changes output linearity
for use in cooling applications or for an
extremely fast response processes. At the
center of the proportional band, a pulse