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PTU5x
- Connections and Configuration
3.2
Humidity infiltrations
4. CONFIGURATION MODES
The
PTU50
,
PTU51
and
PTU56
have 2 configuration/calibration modes:
-
via
MODBUS RTU
, by PC
- via
VLW601
programming module
4.1 Via MODBUS RTU
4.1.1 MODBUS RTU PC connection (fig.19)
1)
PTU50
,
PTU51
or
PTU56
with
MODBUS RTU
communication protocol
2) USB/RS485 interface module, cod.694A004A
3)
MODBUS RTU
communication S/W, cod.010F105A (3)
With this software is possible:
- connect, by selecting the
UID
address, the
PTU50
,
PTU51
or
PTU56
transmitters in
MODBUS RTU
network
- read on your PC monitor all measures in reading and
PTU50
,
PTU51
or
PTU56
operation data
- programming all
PTU50
,
PTU51
or
PTU56
configuration parameters
- storing on files, data logger function;
PTU50
,
PTU51
or
PTU56
measures in reading and operating states
Fig.17
To avoid the humidity infiltration inside the connector is recommended:
- Fully tighten the connector ring nut
- position the cable so that it forms a downward curve at the M20 output
(Fig. 18); in this way the condensation and/or rain water will tend to drip
from the curve bottom
Fig.18
The immunity to electromagnetic interference complies with
Directives
Brown
GND (0V)
Red
+24Vdc
White
SDA Display
Yellow
+ 4÷20mA
Green
A (RS485)
Blue
B (RS485)
Pink
+3.3V Display
Grey
SCL Display
Fig.19
4.3
via VLW601 configuration
With the
VWL601
display module (Fig. 20) is possible to display the measured
values and configure the
PTU50
,
PTU51
and
PTU56
sensors operating
parameters. The
VWL601
module is equipped with matrix LCD.
displayed at the bottom indicates the correct echo signal reception
displayed at the top alerts that there is a generic error; press
to
show the message that indicates the present error type.
The
PTU50
,
PTU51-56
returns automatically to RUN mode.
Fig.20
OK
OK
BK
4321
mm
D
!
3. CONNECTIONS
3.1 Wiring
1) Separate the engine control cables or power cables from the
PTU5x
connection cables.
2) Isolate unused wires of the cable.
3) Fully tighten the connector ring nut
