Siemens SWT-3000 User Manual

SWT 3000 Equipment Manual Functional Description
© SIEMENS AG 2008 Edition p3_3_2x 08/09 Page - 31
Frequency overview
Broadband devices in the VF range [kHz]
Table 23: Command frequencies of broadband devices
Command fre-
quency
VF1 VF2 VF3 VF4 VF5 VF1_M5A VF3_M5A
Guard tone fg 2.615 2.615 3.810 3.810 3.810 2.615 3.810
Usynch fs 1.920 1.920 0.444 2.000 0.665 0.365 0.444
f1 1.700 1.700 2.000 0.665 2.000 1.920 2.000
f2 1.475 1.475 1.555 1.555 1.555 1.700 1.780
f3 0.810 - - - 0.665 - - - - - - 1.475 1.555
f4 1.030 1.030 1.110 1.110 1.110 1.250 1.335
f5 - - - - - - - - - - - - - - - 1.030 1.110
f6 - - - - - - - - - - - - - - - 0.810 0.890
f7 - - - - - - - - - - - - - - - 0.585 0.665
*) Frequency fs is used for clock synchronization (master-slave) between two SWT 3000 units
(if parameters are set) and is transmitted from the master to the slave unit once a day at 24:00h.
Table 24: Coded tripping variants in the VF range
Command fre-
quency
VF1_CT VF3_CT
Guard tone fg 2.615 3.810
Usynch fs 1.920 2.000
f1 1.700 1.780
f2 1.475 1.555
f3 1.250 1.335
f4 1.030 1.110
f5 0.810 0.890
f6 0.585 0.665
f7 0.365 0.444
Narrow band devices in the VF range [kHz]
Table 25: Command frequencies of narrow band devices
Command frequency NB Ch1 NB Ch2 NB Ch3 NB Ch4
Guard tone fg 1.263 2.274 3.284 3.789
Usynch fs 1.137 2.147 3.158 3.663
f1 1.011 2.021 3.032 3.537
f2 0.884 1.895 2.905 3.411
f3 0.758 1.768 2.779 3.284
f4 0.632 1.642 2.653 3.158
*) Frequency fs is used for clock synchronization (master-slave) between two SWT 3000 units
(if parameters are set) and is transmitted from the master to the slave unit once a day at 24:00h.
The following parameters can be set for narrow band devices for two-wire operation:
Table 26: Narrow band versions for VF 2-wire connections
Variant NB Ch12: Transmit channel 1 Receive channel 2
Variant NB Ch21: Transmit channel 2 Receive channel 1
Variant NB Ch13: Transmit channel 1 Receive channel 3
Variant NB Ch31 Transmit channel 3 Receive channel 1
Variant NB Ch23 Transmit channel 2 Receive channel 3
Variant NB Ch32 Transmit channel 3 Receive channel 2

Siemens SWT-3000 Specifications

General

Brand	Siemens
Model	SWT-3000
Category	Industrial Electrical
Language	English