User manual - ATR121/141 -
13
7
Display and keys functions
1
2
3
4
5
7
8
6
7.1 numeric indicators (Display)
1
1234
Normally displays the process.
7.2 Meaning of status lights (Led)
2
OuT1
ON when
command output
is active. When
it flashes, display shows the command output
setpoint (which can be modified by arrow keys).
3
OuT2
ON when
alarm output
is active. When it flashes,
display shows the alarm output setpoint (which
can be modified by arrow keys).
4
L1
ON when the controller communicates via serial
port.
7.3 Keys
5
• Allows to decrease main setpoint.
• During configuration it allows to scroll through
parameters and to modify them togheter with
SET
.
• If pressed after
SET
, it allows to decrease the
setpoints (command with OUT1 flashing/ alarm
with OUT2 flashing).
Summary of Contents for ATR 121
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