Du line
Fieldbus
Installationbus
Specifications are subject to change without notice (10.01.06)
1
Dupline
is a registered trademark. A product of the CARLO GAVAZZI Group
Supply
Ordering no.
No. of channels selectable
24 VAC
G 3490 0000 024
115 VAC
G 3490 0000 115
230 VAC
G 3490 0000 230
15 to 30 VDC
G 3490 0000 824
Generates 8, 16, 24, 32, 40, 48, 56, 64, 96 or 128 channels
Number of channels selectable by rotary switch
Number of sequences (1 or 2) selectable
Quartz-controlled oscillator
Cable compensation
DIN-rail mounting type (G3490) (EN 50022)
LED-indication for supply and Dupline
carrier
AC or DC power supply
Product Description
Channel Generator
Types G 3490 0000
Type Selection
Input/Output Specifications
Inputs
1 contact
Function
2 sequences
Open loop voltage
12 VDC
Short-circuit current
1.25 mA
Contact resistance
100
Cable length
3 m
Insulation voltage
Input - Dupline
None
Outputs
Dupline
carrier
Number of outputs
1
Output voltage
8.2 VDC
Current
70 mA
Short-circuit protection
600 s
Output impedance
25
Type: Dupline
Channel generator
Supply
Ordering Key
G 34900000 230
Standard channel generators
for all Dupline
systems.
Number of channels select-
able by means of a rotary
switch.
Outputs (cont.)
Sequence time *
Time for 1 pulse train ( 1%):
Rotary
switch
No. of
position:
channels:
A
8
15.63 ms
B
16
23.44 ms
C
24
31.25 ms
D
32
39.06 ms
E
40
46.87 ms
F
48
54.68 ms
G
56
62.49 ms
H
64
70.31 ms
L
96
101.54 ms
P
128
132.80 ms
Distance to transmitters
100%
(refer to "Cable Selection")
* When using 2 sequences, the
sequence time will be 2 times
higher.
Du line
Fieldbus
Installationbus
2
Specifications are subject to change without notice (10.01.06)
Dupline
is a registered trademark. A product of the CARLO GAVAZZI Group
G 3490 0000
Supply Specifications
General Specifications
Power supply AC types
Overvoltage cat. III (IEC 60664)
Rated operational voltage
through term.: 21 & 22
230 230 VAC 10% (IEC 60038)
115 115 VAC 10% (IEC 60038)
024 24 VAC 10%
Frequency
45 to 65 Hz
Power dissipation
4 W
Voltage interruption
40 ms
Rated operational power
Typ. 2.5 VA
Rated impulse withstand
voltage
230 4 kV
115 2.5 kV
024 800 V
Dielectric voltage
Supply - Dupline
4 kVAC (rms)
Supply - Inputs
4 kVAC (rms)
Power supply DC types
Overvoltage cat. III (IEC 600664)
Rated operational voltage
through term.: 21 & 22
824 15 to 30 VDC (ripple included)
Power dissipation
3 W
Ripple
3 V
Reverse polarity protection
Yes
Current consumption
90 mA
Inrush current
1 A
Rated impulse withstand
voltage
800 V
Dielectric voltage
Supply - Dupline
None
Supply - Input
200 VAC (rms)
Power ON delay
3 s
Indication for
Supply ON
LED, green
Dupline
carrier
LED, yellow
Environment
Degree of protection
IP 20
Pollution degree
3 (IEC 60664)
Operating temperature
-20 to +50C (-4 to +122F)
Storage temperature
-50 to +85C (-58 to +185F)
Humidity (non-condensing)
20 to 80%
Mechanical resistance
Shock
15 G (11 ms)
Vibration
2 G (6 to 55 Hz)
Dimensions
Material
(see "Technical Information")
H4-housing
Weight
250 g
Mode of Operation
The channel generator gen-
erate a pulse trains and syn-
chronize the transmission
signal for an entire system of
Dupline
modules. At the
same time it supply non-
powered Dupline
transmit-
ters.
The selection of 1 or 2 se-
quences means that 1 or 2
consecutive signals of a
transmitter must show iden-
tical status until the channel
generator changes the duty
cycle for the respective
channel. This change of
duty cycle causes the
receivers to change their
status.
Note:
- Do not use 2 sequences if
analog modules or counters
are connected to the sy-
stem.
- The transmission distance
of a Dupline
network is
reduced by 33% when
using 2 sequences, com-
pared to the figures given
under "Cable Selection".
In Dupline
systems with digi-
tal transmitters and receivers
the use of 2 sequences is
only recommended in cases
of extremely long cabling in
high noise level environment.
Application of 2 sequences
results in absolutely correct
transmission but also in a
slow reaction time for the sys-
tem.
HF disturbance that is indu-
ced to the Dupline
may be
suppressed by interconnec-
tion of terminals 4 & 1 . For
inductive cables a separate
capacitor of less than 1 F
may be mounted between ter-
minals 1 & 2. But in the majori-
ty of cases the cable appears
to be capacitive requiring no
additional capacitor.
Note:
It is highly
recommended to place the
channel generator in the
middle of a Dupline
system.
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