Dwyer 16A User Manual
Page 21
0ut1
Output selection: Select
0n0F
,
#
tP
,
#
PuL
, or
ProP
.
0n0F
A setting of
0n0F
allows the control to operate in simple on/off
mode. This setting forces the control to turn off at set point, and
on at the set point plus the differential (
SP1d
). When selected,
the
0ut1 0n0F
menu items is followed by ####
SP 0d
, and
the
tunE
,
Pb
,
rES
,
510L
and
510H
selections in the Secure
menu are suppressed.
SP1d
Set Point On-Off Differential (hysteresis). Set for the
amount of difference between the turn off point and the
turn on point. Select
1
to
9999
(direct acting), or
-1
to
-9999
(reverse acting). This value will be negative for
reverse acting set points, and positive for direct acting
outputs. The following drawings shows output behavior
for reverse and direct action. For reverse action note how
the output decreases as the input process variable
increases, e.g. heat power goes to zero as the
temperature increases to set point.
##
tP
Time Proportioning Cycle Time. Select
1tP
to
80tP
.
1tP
A setting of 1tP is recommended for solid state outputs
(SSR or 15VDC).
2tP
to
80tP
Time Proportioning Control is adjustable 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.
#
PuL
Pulsed Time Proportioning Output: Select
1PuL
to
7PuL
.
1PuL
= Linear and
7PuL
= most nonlinear. Changes
output linearity for use in cooling applications or for
extremely fast response processes. At the center of the
proportional band, a pulse value of 1 provides an output
of one second on and one second off (50% output). A
pulse value of 2 provides an output of one second on and
two seconds off (33% output). Output at center of band
equals one second on, 2
(pulse value-1)
seconds off.
ProP
For Current (Code 5) outputs only.
W or
R to
atus
next
value
May
May
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