14
ATR 421 - User manual
9
10
AO1
V/
m
A
Analogue output in Volt confi gurable as command
(Par.
c.oUT
) or retransmission of process-setpoint
(Par.
rEtR.
).
To use analogue output in Volt enter JP3 as
indicated in the fi gure.
Serial input (ATR421-12ABC-T)
19
20
RS485
Shield/Scher
m
o
Communication RS485 ModbusRTU with galvanic
isolation.
5
Display and keys functions
ATR421
C 1
C 2
A 1
A 2
A 3
MAN
TUN
REM
PRGM
START
STOP
OK
C 1
C 2
A 1
A 2
A 3
MAN
TUN
REM
3
4
6
5
7
8
9
10
1
2
15
16
13
14
11
12
Содержание ATR 421
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