Dwyer 32A User Manual
Page 24
Page 24
The following items repeat in the following order: 1ti, 1SP, 1A1 (if alarm 1 is programmed as an
event), 2ti, 2SP, 2A1, . . . , 16ti, 16SP,16A1. To avoid repetition each item will only be described
once.
1ti
Segment Time: Select 0 to 9999 units (minutes if tbaS is set to 60_S,
seconds if tbaS is set to 1_S.
1SP
Segment Set Point: Select 0 to 9999 units (minutes if tbaS is set to 60_S,
seconds if tbaS is set to 1_S.
1AL
Segment Alarm Event: Select On or OFF .
On
Alarm is active during segment 1 time (1ti).
OFF
Alarm is inactive during segment 1 time (1ti).
PEnd
Program End action: Select Hold or OoFF.
Hold
Stay at the Present Set Point (16SP).
OoFF
Turn Off SP1 and SP2 Outputs at the end of the program.
LooP
Repeat program starting at 1ti.
SP1
Revert to SP1 value.
InPC
Input Correction: Select ±500 °F, °C, or counts. This feature allows the input value to be
changed to agree with an external reference or to compensate for sensor error. Note: InPC
is reset to zero when the input type is changed, or when decimal position is changed.
FiLt
Digital Filter: Select OFF, 1 to 99. In some cases the time constant of the sensor, or noise
could cause the display to jump enough to be unreadable. A setting of 2 is usually sufficient
to provide enough filtering for most cases, (2 represents approximately a 1 second time
constant). When the 0.1 degree resolution is selected this should be increased to 4. If this
value is set too high, controllability will suffer.
LPbr
Loop Break Protection: Select OFF, 1 to 9999 seconds. If, during operation, the output is
minimum (0%) or maximum (100%), and the input moves less than 5°F (3°C) or 5 counts
over the time set for LPbr, the LOOP bAd message will appear. This condition can also be
routed to an Alarm Condition if alarms are present and turned On (see ALbr in the secure
menu). The loop break error can be reset by pressing the ENTER key when at the LPbr
menu item. The INDEX & ENTER keys may also be used.
LOrE
(Option 992, Serial Communications) Local / Remote Status: Select
LOC or rE.
LOC
The host computer is advised not to send remote commands. Any write
commands sent to the controls will be rejected.
rE
The host computer is allowed to send write commands. If the control is not
addressed within the time set in the nAt (No Activity Timer, see Secure Menu) the
CHEC LorE error message will be displayed.
Addr
(Option 992, Serial Communications) Control Address: Set from1 to 3FF.
This number (hexadecimal, base 16) must match the address number used by the host
computer. Viewed only in this menu. To change this parameter, see Addr in the Secure
Menu.