Eurotherm 216, Руководство пользователя

Страница: 18 / 40

12 GB GB GB GB GB
P27 – FEATURE FUNCTION P27 – FEATURE FUNCTION
P27 – FEATURE FUNCTION P27 – FEATURE FUNCTION P27 – FEATURE FUNCTION
0 = None
1 = SP/SP2 selection
2 up to 5 = Timer function (for SP/SP2
selection)
6 up to 8 = Timer function (for enable/disable
control output)
(see Timer Function description)
When P27 = 1, 2, 5 the parameter
sp2
will be
checked and set to
rL
if out of range
When P27 = 3, 4 the parameter
sp2
will be
checked and set to
rL
if out of range and
parameter P5 is forced to 0
When P27 = 6,7 the parameter P5 is forced to 0
When P27 is < 6 and it was >= 6, the control
output is forced “enable” at the next start-up.
Timer functions Timer functions Timer functions Timer functions Timer functions
Notes about all timer modes:
1) At power off the time value and status will be reset.
2) The time parameter (
t
) can always be modified
but the new value become operative at the
next start time only.
Timer mode 1 [P27 = 2] Timer mode 1 [P27 = 2] Timer mode 1 [P27 = 2] Timer mode 1 [P27 = 2] Timer mode 1 [P27 = 2]
If the logic input remains in open condition for
more than a programmed time the instrument
goes automatically at a stand by temperature
(SP2).
The time count is reset when the logic input is
closed.
For other details see paragraph "5.7 Timer "5.7 Timer "5.7 Timer "5.7 Timer "5.7 Timer
modes description". modes description". modes description". modes description". modes description".
Timer mode 2 [P27 = 3] Timer mode 2 [P27 = 3]
Timer mode 2 [P27 = 3] Timer mode 2 [P27 = 3] Timer mode 2 [P27 = 3]
When the contact is closed, the instrument
controls using SP as operative set point.
When the contact has been opened the
instrument selects SP2 as operative set point
and starts the time count down.
NOTE:
NOTE:
NOTE: NOTE:
NOTE: that the guarantee soak function can be
applied to this timer mode (see P28 parameter)
When the time count is equal to 0 the instrument
comes back to the SP set point and the output 2
will be energized.
The Out 2 reset will be made when the logic input
will be closed again.
For other details see paragraph "5.7 Timer "5.7 Timer "5.7 Timer "5.7 Timer "5.7 Timer
modes description". modes description".
modes description". modes description".
modes description".
Timer mode 3 [P27 = 4] Timer mode 3 [P27 = 4] Timer mode 3 [P27 = 4] Timer mode 3 [P27 = 4] Timer mode 3 [P27 = 4]
When the contact is closed, the instrument
controls using SP as operative set point.
When the contact has been opened the
instrument operate as follows:
- it selects SP2 as operative set point
- it starts the time count down
- it energizes the Output 2
NOTE:
NOTE:
NOTE: NOTE: NOTE: that the guarantee soak function can be
applied to this timer mode (see P28 parameter)
When the time count is equal to 0 the instrument
comes back to the SP set point and the output 2
will be reset.
For other details see paragraph "5.7 Timer
"5.7 Timer
"5.7 Timer "5.7 Timer "5.7 Timer
modes description". modes description". modes description". modes description". modes description".
02-0316-1-DER.pmd 22/04/2004, 16.19 12