16 ATR 421 - User manual
13
•
Whit controller in
STOP
it visualize the duration of the last cycle.
• In con guration it assigns a mnemonic code or a number to the
selected parameter.
• During a cycle it allows to visulize cycling the setpoint and the
other data.
14
PRG
M
• Whit controller in STOP allows to enter cycle modi cation and
con guration.
• During a cycle, if pressed for 1 second, it allows to activate/de-
activate HOLD function.
15
STA
R
T
STO
P
• Start/Stop a cycle.
• In parameter con guration and cycle data modi cation, it is
used as exit key (ESCAPE).
16
O
K
• Value or selected function con rmation.
6 Programming and con guration
There are two programming levels:
1. Cycles programming (for operator/user) means entering time/setpoint
values for each step of cycle.
2. Con guration (for manufacturer/installer of plant), to enter main par me-
ters (sensor type, output type, auxiliary output intervention type ext.).
6.1 Programming (or modifying) cycle data
With or without starting setpoint and timed auxiliary outputs.
The above speci cations underline the possibility given to the installer
(plant’s manufacturer) to choose the sequence of operations required for the
programming of a ring cycle.
This paragraph includes all available options. In case that the installer de-
cides to choose a simpli ed programming with less options, it is highly re-
commended to prepare additional instructions specifying only the choosen
sequence.
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