Pixsys DRR460 Series, Руководство пользователя, Страница: 10 / 72

10 - DRR460 - User manual
5.1.e
CT input
12
CT
16
Input for CT 50mA.
Sampling time 100 µs.
Current measure true RMS for Heater Break Alarm and overcurrent alarm
functions.
5.1.f Digital outputs
5
+
–
Q1
24VDC / 50mA
6
7
+
–
Q2
24VDC / 50mA
8
Digital output 24VDC ±15%/ 50mA
5.1.g
Analogue output
3
+
–
AO1
0/4..20mA
4
inear output in mA (galvanically insulated from the sensor) configurable as
command (par. 16
c.out
) or retransmission of process-setpoint (par. 100
retr.
)
6 Leds and key function
6.1 Meaning of status lights (LED)
RUN Indicates presence of serial communication
OUT1
Normally it indicates the status of output OUT1.
• During test (pressing key), if the command output is OUT1, blinks with
frequency 50ms.
• At the end of current acquisition by the CT, blinks with frequency 0.5s if
the operation has been done successfully.
• In case of error, it blinks in alternation with the led OUT 2 (ex. broken
sensor).
OUT2
Normally indicates the status of output OUT2.
• During test (pressing key), if the command output is OUT2, blinks with
frequency 50ms.
• At the end of current acquisition by the CT, blinks with frequency 0.5s if
the operation has been done successfully
• In case of error, it blinks in alternation with the led OUT 1 (ex. broken
sensor).
6.2 Key
• If pressed it enables the command output: press for more than 3 seconds
to manage the threshold current reading for the Heater Break Alarm
control.
• If pressed during the modbus address assignment function, it stores the
value assigned by the master (only if the dip1 is all in OFF).