Operating Instruction
VEGADIS 174
Level and Pressure
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VEGADIS 174
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Contents
Safety information ........................................................................................ 2
1 Product description
1.1 Function and configuration ................................................................. 3
1.2 Technical data and dimensions .......................................................... 4
2 Mounting
2.1 Plug-in plate ........................................................................................ 5
2.2 Mounting instruction ........................................................................... 5
3 Electrical connection
3.1 External power supply ........................................................................ 6
3.2 Power supply via DISBUS................................................................... 6
4 Set-up
4.1 Indicating and operating elements..................................................... 6
4.2 Operating ............................................................................................ 7
5 Diagnosis ................................................................................................. 7
Contents
Safety information
The described module must only be inserted and operated as described in this operating instruction. Please
note that other action can cause damage for which VEGA
does not take responsibility.
2 VEGADIS 174
Product description
1 Product description
1.1 Function and configuration
VEGADIS 174 is a digital indicating instrument for front
panel mounting.
It can be connected to all signal conditioning instruments with DISBUS-output. The indication of VEGADIS
is a digital 5-digit LC-display with background lightning.
Function
The VEGADIS 174 indicating instrument is used for
indication of measuring results.
The measured data are transmitted via a DISBUS-line
from one or several signal conditioning instruments to
the respective VEGADIS 174.
Configuration
VEGADIS can be connected via a two-wire line to all
signal conditioning instruments with DISBUS-output or
to a processing system VEGALOG 571.
This two-wire line is used for digital transmission of
measuring results (DISBUS), when a VEGALOG is
connected also for power supply. Up to 15 signal
conditioning instruments with up to 45 VEGADIS 174
can be connected to this two-wire line. VEGADIS 174
receives the measured data of all connected signal
conditioning instruments. However it only displays the
data of the signal conditioning instrument to the address of which it is adjusted.
CE-conformity
VEGADIS meets with the protective regulations of
EN 61 010
EN 50 081-1
EN 50 082-2
VEGADIS 174 3
EMVG of 9.11.1992 and EG-low voltage
regulation 72/23/EWG. The conformity was
judged acc. to the following standards:
1.2 Technical data and dimensions
General
Series instrument for front panel mounting
Dimensions W = 96 mm, H = 48 mm, D = 110 mm
Weight appr. 200 g
Housing material plastic PPh
Terminals max. 1,5 mm
Ambient conditions
Permissible ambient temperature -10°C … +60°C
Storage and transport temperature -20°C … +80°C
Power supply
Voltage supply 20 … 250 V AC, 20 … 72 V DC
Power consumption 1 … 9 VA, 1,5 W
Electrical protective measures
Protection class II
Overvoltage category II
Protection
- front IP 40
- housing IP 20
Inputs
Transmission digital
Connection line to the signal condit. instrument 2-wire (screened cable recommended)
Line length max. 1000 m
Digital indication
LCD-display 5-digit with minus sign
Height of figures 12,7 mm
Decimal point individually selectable
2
Product description
112
88888
96
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VEGADIS 174
48
1,5
104,5
42,5
5
90
4 VEGADIS 174
6
Mounting
2 Mounting
2.1 Plug-in plate
In the front of VEGADIS 174 a plate with the respective
unit symbol can be plugged in.
% m cm ft kg t gal hl m
• Loosen the front frame (1) of VEGADIS 174 with a
small screwdriver on the four lockings (3).
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VEGADIS 174
• Loosen the front plate (2) with a small screwdriver
and remove from the instrument housing (5).
• Loosen the requested plug-in plate (8) from the
enclosed strip and plug-in the plate laterally into the
opening in the front pane (2).
• Insert the front pane (2) into the opening of the
instrument housing (5). Observe that the key
(ADDR. CHECK) (7) must protrude out of the front
pane.
• Place the front frame (1) to the instrument housing
(5) and press the front frame until all four lockings
(3) snap in.
3
3
hl
2.2 Mounting instruction
Mount VEGADIS 174 indicating instrument into an
opening with the size 91 x 43 mm .
• Cut an opening with the dimensions 91 x 43 into
your front panel.
91
• Remove the frame (4) to the back.
• Plug the VEGADIS 174 without frame from the front
into the front panel cut-out.
• Insert VEGADIS 174 from the front into the front
panel cut-out until the frame (1) is flush to the front
panel.
• Insert the frame (4) from the back to the instrument
housing until snap-in.
• Fasten the two screws (6) moderately.
43
5
4
3
2
1
VEGADIS 174 5
7
8
Electrical connection, set-up
3 Electrical connection
Danger
Switch off power supply before starting connection
work.
Carry out the electrical connection acc. to the following figures.
3.1 External power supply
The external power supply is in any case possible. In
case VEGADIS is connected to signal conditioning
instruments using a DISBUS without power supply, the
VEGADIS must in any case be supplied externally.
With the following signal conditioning instruments
VEGADIS 174 must be generally supplied externally
(VEGAMET 513, 514, 514 V, 515, 515 V).
VEGADIS 174 can be supplied with 20 … 250 V AC or
20 … 72 V DC.
L
N
(+)
(–)
– (+)
+
(–)
DISBUS
3.2 Power supply via DISBUS
DISBUS with power supply is available with the following instruments: VEGALOG 571, VEGAMET 509 or
VEGAMET 512.
Therefore connect terminals 3 and 5 as well as terminals 4 and 6 each with one line.
20 … 250 V AC
20 … 72 V DC
4 Set-up
4.1 Indicating and operating elements
L
N
(+)
(–)
– (+)
+
(–)
1
1 Rotating switch VEGAMET ADDR. (black)
2 Rotating switch DIS No. (red)
3 Terminals
4 Digital indication
5 Key ADDR. CHECK
Key ADDR. CHECK (5)
With this key the data of VEGADIS 174 can be en-
quired. By pushing the key, the display indicates the
adjusted address. If you keep the key pushed, the
address and the DIS-number (channel) of VEGADIS
are alternately displayed.
Rotating switch VEGAMET ADDR. (1)
With the 16-step rotating switch (VEGAMET ADDR.)
you select the respective signal conditioning instrument. The address number must be determined on the
respective signal conditioning instrument. VEGADIS
174 reads the data of the signal conditioning instrument, to which it is addressed.
2
4
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VEGADIS 174
Rotating switch DIS No. (2)
With the 10-step rotating switch (DIS No.) VEGADIS is
L
N
(+)
(–)
– (+)
+
(–)
set to the channel (DIS-number) of the respective
signal conditioning instrument. The DIS-number can
be selected on VEGAMET. If a processing system
VEGALOG is connected, the DIS-number must not be
connected. The rotating switch (2) is in any case
without function.
DISBUS
6 VEGADIS 174
Set-up, diagnosis
4.2 Operating
VEGADIS 174 is a universal indicating instrument for
all signal conditioning instruments, providing a
DISBUS-signal.
Proceed as follows to adjust both values:
• Select with the black rotating switch VEGAMET
ADDR. (1) the address number of the requested
signal conditioning instrument.
• Select with the red rotating switch DIS No. (2) the
DIS-number (channel) of the selected signal conditioning instrument. If a processing system
VEGALOG is connected, the DIS-number must not
be adjusted. The rotating switch (2) is in this case
without function.
• Check the correct selection of the signal conditioning instrument by pushing the key ADDR. CHECK
(5). The display indicates alternately the address
number (e.g. Addr. 1) and the DIS-number (e.g.
no. 1).
5 Diagnosis
The following fault signals are displayed on VEGADIS 174. Further fault signals are stated in the operating instruction of the signal conditioning instrument or of VEGALOG.
Fault signal/Error Treatment/Measures
E9.10 No data traffic on DISBUS,
DISBUS-communication interfered Check the DISBUS-line (connections,
E4.50 No signal conditioning instrument emitting
on the adjusted address Adjust the signal conditioning instrument and
E4.51 No signal conditioning instrument emitting
on the adjusted DIS-No. Adjust the signal conditioning instrument and
line break)
VEGADIS to the correct address
VEGADIS to the correct DIS-No.
VEGADIS 174 7
VEGA Grieshaber KG
Am Hohenstein 113
D-77761 Schiltach
Phone (0 78 36) 50 - 0
Fax (0 78 36) 50 - 201
Fax (0 78 36) 50 - 203
ISO 9001
Technical data subject to alterations 2.19 965 / Febr. ’96
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