VEGADIS 171 A
TIB • Technical Information • Operating Instructions
Remote digital
indicator
100.0
VEGADIS 171 A
%
-3 1/2 -digit
LED-display
- adjustable decimal
point
- analog input
VEGA Grieshaber KG
Am Hohenstein 113
Postfach 11 42
D-77757 Schiltach
Phone 0 78 36 / 50 - 0
Fax 0 78 36 / 50 201
Contents
Contents
1 Introduction
1.1 Application ..........................................................................................................................................................3
1.2 Configuration.......................................................................................................................................................3
1.3 Function ..............................................................................................................................................................3
1.4 Security information ............................................................................................................................................3
2 Technical Information
2.1 Technical data ..................................................................................................................................................... 4
2.2 Dimensional drawings ......................................................................................................................................... 4
3 Mounting .....................................................................................................................................................5
4 Electrical connection
4.1 Terminals.............................................................................................................................................................5
4.2 Connection example ........................................................................................................................................... 5
5 Set-up
5.1 Indication and operating elements ......................................................................................................................6
5.2 Input signal..........................................................................................................................................................6
5.3 Adjustment of the zero point and the measuring range final value .....................................................................6
2
VEGADIS 171 A
1 Introduction
1 Introduction
1.1 Application
The VEGADIS 171 A is a digital remote indicator of
measured values. The indication has a 3 1/2-digit LEDdisplay.
The indication instrument is suitable for front panel
mounting. The dimensions of the unit are standardized for
measuring instrument 96 x 48 mm.
1.2 Configuration
The VEGADIS 171 A consists of:
- plastic housing
- crimper for fastening in the cut-out
- 5-wire terminal socket
- adhesive labels with %, m, cm, ft, kg, t, gal, hl, m
(insert pattern as on page 5).
3
1.3 Function
The analog input signal is converted into a digital signal
and is indicated on the 3 1/2-digit LED-display.
1.4 Security information
The instrument must only be operated as described in this
TIB. Please note that other action can cause damage for
which VEGA does not take liability.
VEGADIS 171 A
3
2 Technical Information
2.1 Technical data
Power supply
Operating voltage Value Tolerance Frequency
Standard 220 V AC +15 % –10 % 50 / 60 Hz
230 V AC +10 % –15 % 50 / 60 Hz
Options 110 V AC
130 V AC +15 % –10 % 50 / 60 Hz
240 V AC
24 V AC
42 V AC +15 % –10 % 50 / 60 Hz
48 V AC
16 … 60 V DC ––– –––
2 Technical Information
Power consumption at U
Input data
Current input Standard 0 … 20 mA; Ri = 100 Ohm
or
Voltage input 0 … 5 V / 10 V; Ri ≥ 100 kOhm
Indication
LED-digits 3
Height of digits 13,5 mm
Temperature range
Permissible ambient temperature –20°C … +50°C
Storage and transport temperature –20°C … +70°C
Protection
Terminals IP 00
Housing IP 20
Connection terminals 5-wire plug with terminal max. 1 x 1,5 mm
Weight approx. 300 g
N
approx. 5 VA
1
/2-digit, 0000 … 1000
2.2 Dimensional drawings
112
20
Front panel cut-out
2
0 0 0 0
96
4
48
123
43
42,5
5
90
91
VEGADIS 171 A
3 Mounting / 4 Electrical connection
3 Mounting
The indication instrument is designed for front panel
mounting. The dimensions of the housing correspond to
the standard for measuring instruments 96 x 48 mm.
Procedure for installation
• provide panel cut-out
• push VEGADIS 171 A without frame from the front into
the front panel cut-out
• push the frame from the back until snap-in
• tighten screws moderately
Procedure to insert the label
Locking screws
1000
LED-display Locking screws
Housing
Front pane
Window for
indication label
4 Electrical connection
4.1 Terminals
54321
+- LN
Signal
After installation the signal line and the power supply on
the 5-pole (pluggable) terminals on the back of the
instrument are connected.
4.2 Connection example
VEGABAR 10 VEGADIS 171A
Mains
8888
=
~
Auxiliary energy
source
Locking screws
The label %, m, cm, ft, kg, t, gal, hl and m3 are attached.
Push the label:
• loosen the locking screws of the front frame with a
small screw driver
• remove front frame
• loosen the window with a small screw driver and
remove
• cut the required label and push into the window laterally
• insert window, plug on the front frame and push until
the lockings snap-in
VEGADIS 171 A
5
5 Set-up
5 Set-up
5.1 Indication and operating elements
Slide switch
Offset
0
1.0.0.0
1. 0. 0. 0.
P0 P
max
R10
Potentiometer for indication span
Potentiometer for indication span
5.2 Input signal
The VEGADIS 171 A is standard for input signals
0/4 … 20 mA.
For other input signals the VEGADIS must be modified
acc. to the following description:
Input signal 0/1 … 5 V
• remove front pane
• R10 unsolder 100 Ohm
• R10 solder 68 K1 1 %
• R11 unsolder 0 Ohm
• R11 solder 100 K 1 %
Input signal 0/2 … 10 V
• remove front pane
• R10 unsolder 100 Ohm
• R10 solder 26 K1 1 %
• R11 unsolder 0 Ohm
• R11 solder 100 K 1 %
R11
5.3 Adjustment of the zero point and
the measuring range final value
Example: requested indication 000 … 1000
Input signals 0 … 20 mA; 0 … 5 V; 0 … 10 V
• remove front pane and front frame (see section
"Procedure to insert the label")
• set slide switch for zero point correction in position "0“
• switch on the mains
• feed the measuring signal acc. to version 0 … 20 mA or
0…5V / 10 V
- at 0 mA or 0 V measuring signal, theVEGADIS
indicates „000“
- at 20 mA or 5 / 10 V measuring signal, the VEGADIS
indicates „1000“
- the indication can be adjusted in the range of "52.0"
to "174,0" by means of potentiometer P
• adjust requested decimal point with bridge (see section
"adjustment of the decimal point")
Input signals 4 … 20 mA; 1 … 5 V; 2 … 10 V
For the adjustment of the measuring range final value
always the current or voltage difference between initial
and final value must be provided:
at 4 … 20 mA: 20 mA • 4 mA = 16 mA
at 1 … 5 V: 5 V – 1 V = 4 V
at 2 … 10 V: 10 V – 2 V = 8 V
• remove front pane and front frame (see section
"Procedure to insert the label")
• set slide switch for zero point correction in position "0“
• switch on the mains
• acc. to the input signal (difference) provide 16 mA, 4 V
or 8 V
• adjust 100.0 by means of the potentiometer P
(measuring range final value)
• set slide switch for zero point correction in position
"Offset"
• acc. to the input signal feed initial value 4 mA, 1 V or
2V
• adjust 00.0 by means of potentiomter P0 (zero point
correction)
• adjust requested decimal point with bridge (see section
"adjustment of the decimal point")
max.
max
6
VEGADIS 171 A
5 Set-up
Example: requested indication 10.0 … 90.0
Input signals 0 … 20 mA; 0 … 5 V; 0 … 10 V
• remove front pane and front frame (see section
"Procedure to insert the label")
• switch on the mains
• feed the measuring signal acc. to version 20 mA or
5 V / 10 V
• set slide switch for zero point correction in position "0"
• adjust "80.0" by means of the potentiometer P
(measuring range final value)
• acc. to the input signal feed initial value 0 V or 0 mA
• set slide switch for zero point correction in position
"Offset"
• adjust "10.0" by means of potentiometer P0.
Input signals 4 … 20 mA; 1 … 5 V; 2 … 10 V
• remove front pane and front frame (see section
"Procedure to insert the label")
• switch on the mains
• feed the measuring signal (difference) acc. to
version16 mA, 4 V or 8 V
• set slide switch for zero point connection in position "0"
• adjust "80.0" by means of the potentiometer P
(measuring range final value)
• acc. to the input signal feed initial value 4 mA, 1 V or
2V
• set slide switch for zero point correction in position
"Offset"
• adjust "10.0" by means of potentiometer P0.
max.
max.
Adjustment of the decimal point
The decimal point can be adjusted by means of a bridge
(in the example 1000).
1 0 0. 0
Bridge for decimal point
Bridge plugged:
indication 100.0
indication 10.00
indication 1.000
Bridge unplugged:
indication 1000
VEGADIS 171 A
7
VEGA Grieshaber KG
Am Hohenstein 113
Postfach 11 42
D-77757 Schiltach
Phone 0 78 36 / 50 - 0
Fax 0 78 36 / 50 201
Technical data subject to alterations 2.11 987 / Mai '94
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