Omega Engineering CN 79000 Thermostat User Manual


 
Page 21 of 40
If
EditEdit
EditEdit
Edit is set to
11
11
1, jump to
LorELorE
LorELorE
LorE on page 24.
If
EditEdit
EditEdit
Edit is set to
33
33
3, continue.
If
EditEdit
EditEdit
Edit is set to
22
22
2, begin.
Out2Out2
Out2Out2
Out2 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 (
SP2dSP2d
SP2dSP2d
SP2d). When selected,
the
Out2Out2
Out2Out2
Out2/
OnOFOnOF
OnOFOnOF
OnOF menu item is followed by ####/
SP2dSP2d
SP2dSP2d
SP2d,
and the
tun2tun2
tun2tun2
tun2,
Pb2Pb2
Pb2Pb2
Pb2,
rES2rES2
rES2rES2
rES2,
OFS2OFS2
OFS2OFS2
OFS2,
rtE2rtE2
rtE2rtE2
rtE2, and
Ars2Ars2
Ars2Ars2
Ars2
selections in the Secondary menu and the
S2OLS2OL
S2OLS2OL
S2OL
and
S2OHS2OH
S2OHS2OH
S2OH selections in the Secure menu are sup-
pressed.
SP2dSP2d
SP2dSP2d
SP2d 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 15VDC).
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