Special Functions; Start-Up Function - ascon M3 Series User Manual

6 SPECIAL
FUNCTIONS
Two special functions are available:
6.1 Start-up
6.2 Timer
In order to have the above func-
tions the product code digit E must
be 2 (see page 17)
For example: M3 3100-2000
To select these functions use the
parameter:
T i m e r / S t a r t - u p
# t . M od
operator mode
(see page 35).
A
Selecting Timer or Start-up,
the Soft-start function is dis-
abled, therefore the para-
meters
# s t. O p # s t. t M
and
be shown. (see page 27)
6.1

START-UP FUNCTION

By means of this function it is pos-
sible to manipulate the control
output when the controller is
switched on.
t. M od
mode" must be set to
Three parameters are associated
to the Start-up function, they
appear on the second group.
(see page 27)
# s . p . s U
# t . h . s U
will not
# O p. H s
The Start-up function includes
three phases:
st
1
To configure
1
S t a r t - u p
nd
function the 2
p a r a m e t e r
"Timer/Start-
up operating
# 1
.
rd
3
Start-up Whether the process variable, for
Setpoint any reason (e.g. load change),
s. p . l s. p . H
( ... ) decreases at a value lower than (
# s . p . s U
Start-up function starts again from the
hold time "Limy" phase.
(0...500 min.)
When the Start-up is in Hold
Output phase, if the local Setpoint
high limit becomes lower than the Start-
(5.0%...100.0% min) up Setpoint, the Start-up func-
tion passes to the "Off" phase.

6 - Special functions

continued on page 40
"Limy" - The control output is
# O p. H s
limited to the
"Hold" - The process variable
is maintained to the Start-up
Setpoint for the time fixed by
# t . h . s . U
the parameter
# t . h . s . U
"Off" - When the
is elapsed the process variable
is maintained to the working
Setpoint.
- 40 digits), the Start-up
time
39