programmable display unit pdu
PROGRAMMABLE DISPLAY UNIT PDU
•
For measurement and display of physical
values
•
Current or voltage input (e.g. from CLM,
ULM, HLM level meters)
•
Up to 4 relay-outputs with direct function
•
Front panel performance or wall-mounted
case
•
Isolated analog output 4 ... 20 mA (option)
•
Power supply voltage 230 V or 24 V
C
B
A
The programmable display unit PDU measures and displays wide range of physical values (level, pressure, flow, temperature,
etc.). It is designed as a panelmeter, so its montage is provided onto a front panel cutout or as wall-mounted case. Terminal
blocks are on rear side in panelmeter and inside in wall-mounted case. At the front panel there are four buttons for setting up
all functions and LEDs for indication of limits (max. four) and LED for alarm. The device operates in the following modes: linear,
square, root and user defi ned (max. 20 points). All settings are saved in EEPROM memory.
FEATURES OF VARIANTS
PDU–420–W
A
2 relay outputs, wall-mounted case. Power supply voltage 230 V or 24 V, communication
interface RS–485 / Modbus RTU, support IR remote control RCW–1.
PDU–420–P
B
2 relay outputs, front panel performance. Power supply voltage 230 V or 24 V, communication
interface RS–485 / Modbus RTU.
PDU–421–P
B
2 relay outputs, front panel performance. Power supply voltage 230 V or 24 V, communication
interface RS–485 / Modbus RTU, support isolated analog output signal 4 ... 20 mA.
PDU–440–P
B
4 relay outputs, front panel performance. Power supply voltage 230 V or 24 V, communication
interface RS–485 / Modbus RTU.
RCW–1
C
Infrared remote control for settings parameters of unit without opening the tight case. Only for
PDU–420–W unit. For detailed information see “Accessories” datasheet.
PDU-dat-1.5
DIMENSIONAL DRAWING
PDU–420–W
PDU–420–P, PDU–421–P, PDU–440–P
TECHNICAL SPECIFICATIONS
Mounting
PDU–420–W
PDU–420–P, PDU–421–P, PDU–440–P
Wall-mounted case
Front panel performance
Nominal supply voltage
Version 230 V
Version 24 V
230 V AC ± 10%
24 V DC ± 15%
85 ... 260 V AC/DC
19 ... 50 V DC; 16 ... 35 V AC
Nominal power demand
Version 230 V
Version 24 V
2.6 VA
4.5 W
4.5 W (4.5 VA)
Current 0/4 ... 20 mA (input current limited to about 40 mA)
Voltage 0/1 ... 5 V; 0/2 ... 10 V
Input
Input resistance
< 65 Ω (Current input); > 50 kΩ (Voltage input)
Measuring range
from -999 to 9999, plus decimal point
Accuracy
± 0.25 % (± one digit in the entire operation range)
Display type
4 digit, LED, red
Output
2 (Relay 1 A / 250 V AC)
2 or 4 (Relay 1 A / 250 V AC)
24 V DC ± 3 V, Max. 25 mA
24 V DC ± 15%, Max. 100 mA
24 V DC + 5 % - 10 % / Max. 100 mA
Active current output
–
0 ... 24 mA (PDU–421–P)
Communication interface
RS–485, 8N1 and 8N2, Modbus RTU, not separated
Sensor power supply output
Version 230 V
Version 24 V
Baud rate
1 200 ... 115 200 bit/s
Ambient temperature range
0 ... + 50°C; (-20 ... +50°C) *
0 ... + 50°C
Storage temperature range
-10 ... + 70°C; (-20 ... +70°C) *
-10 ... + 70 °C
IP65
IP65
IP40 (Standard); IP65 (Option)**
IP20
Protection class
Front panel
Terminals protection
Housing material
ABS + glass fibre
Noryl – GFN2S E1
Weight
Approx. 340 g
Approx. 210 g
* Extra charge
** With additional frame
PDU-dat-2.5
TERMINAL BLOCK
Term. No.
PDU–420–W
PDU–420–P
PDU–421–P
PDU–440–P
1
L / + (230 / 24 V)
L / + (230 / 24 V)
L / + (230 / 24 V)
L / + (230 / 24 V)
2
N / - (230 / 24 V)
N / - (230 / 24 V)
N / - (230 / 24 V)
N / - (230 / 24 V)
3
RE 2
- (Analog output)
RE 4
4
RE 2 / RE 1
5
RE 1
6
7
+ (Analog output)
RE 4
+ US
+ US
+ US
GND
GND
GND
GND
+ US
GND (RS 485)
GND (RS 485)
GND (RS 485)
B - (RS 485)
B - (RS 485)
B - (RS 485)
8
9
+ IN (Voltage)
A + (RS 485)
A + (RS 485)
A + (RS 485)
10
+ IN (Current)
RE 1
RE 1
RE 1
11
GND
12
RE 1
RE 1
RE 1
RE 2
RE 2
RE 2
RE 2
RE 2
13
GND (RS 485)
14
B - (RS 485)
RE 3
RE 2
15
A + (RS 485)
RE 3
16
17
+ IN (Voltage)
+ IN (Voltage)
18
+ IN (Current)
+ IN (Current)
+ IN (Voltage)
+ IN (Current)
19
GND
GND
GND
20
ELECTRICAL CONNECTION
The unit is not equipped with an internal fuse
or power supply circuit breaker. Because of this
an external time-delay cut-out fuse with a small
nominal current value must be used (recommended bipolar, max. 2A) and a power supply
circuitbreaker located near the unit. In the case
of using a monopolar fuse it must be mounted on
the phase cable (L).
The power supply network cable diameter must
be selected in such a way that in the case of a
short circuit of the cable from the side of the unit
the cable shall be protected against destruction
with an electrical installation fuse.
Non-explosive area
Level meter with current output
PDU–4xx–P unit
(PDU–420–W unit)
Fig. 1: Connection of 2-wire level meter with current output
in non-explosive area
Non-explosive area
Level meter with voltage output
PDU–4xx–P unit
(PDU–420–W unit)
Fig. 2: Connection of 3-wire level meter with voltage output in non-explosive area
PDU-dat-3.5
Non-explosive area
Non-explosive area
Level meter with current output
(e.g. ULM–53Xi, CLM–36Xi)
Isolating repeater (IRU–420–I)
PDU–4xx–P unit
(PDU–420–W unit)
Fig. 3: Connection of 2-wire level meter with current output in explosive area
STATUS SIGNALIZATION
LED indicators
Colour
For type
Function
“AL”
Red
All
Shines – Reaction for critical situation of terminal „+IN“ (user defined)
Dark – Correct function
“R 1”
Red
All
Shines – The output relay RE 1 is closed
Dark – The output relay RE 1 is open
“R 2!
Red
All
Shines – The output relay RE 2 is closed
Dark – The output relay RE 2 is open
“R 3”
Red
PDU–440–P
Shines – The output relay RE 3 is closed
Dark – The output relay RE 3 is open
“R 4”
Red
PDU–440–P
Shines – The output relay RE 4 is closed
Dark – The output relay RE 4 is open
ORDER CODE
PDU –
–
–
Supply voltage:
230 V – 230V AC/DC *
24 V – 24 V AC/DC *
Mounting:
W – Wall mounted case (only PDU–420–W)
P – Front panel performance
Type of unit:
420 – 2 relay output (RE 1 and RE 2)
421 – 2 relay output (RE 1 and RE 2), analog output 4 ... 20 mA
440 – 4 relay output (RE 1, RE 2, RE 3 and RE 4)
* See “Technical specifications” table for nominal supply voltage range
CORRECT SPECIFICATIONS EXAMPLE
PDU–420–W–230V
(420) 2 relay output; (W) Wall-mounted case; (230V) Supply voltage range 230 V AC ± 10%.
PDU–421–P–230V
(421) 2 relay output; (P) Front panel performance; (230V) Supply voltage range 85 ... 260 V AC/DC.
PDU–440–P–24V
(440) 4 relay output; (P) Front panel performance; (24V) Supply voltage range 19 ... 50 V DC (16 ... 35 V AC).
PDU-dat-4.5
ACCESSORIES
Standard (included in the unit price)
•
2 pcs of panel thickness mounting brackets
(only for PDU–4xx–P)
Optional (for extra charge)
•
Infrared remote control RCW–1
(only for PDU–420–W)
•
Additional frame for IP65 protection class
(only for PDU–4xx–P)
SAFETY, PROTECTION AND COMPATIBILITY
Version 11/2012
Electrical equipment of protection group II. Connection to mains only through fuse or overcurrent circuit breaker (Max. 2 A).
Electrical safety according to EN 61010.EMC according to EN 61326.
PDU-dat-5.5
Dinel, s.r.o.
U Tescomy 249
760 01 Zlín, Czech Republic
Phone:
Fax:
+420 577 002 003
+420 577 002 007
sale@dinel.cz
www.dinel.cz
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