Installation and Commissioning SWT 3000 Equipment Manual
Setting recommendations for the SWT 3000 timer configuration
Broadband versions
Table 53: Timer settings for broadband versions
Single-
purpose opera-
tion
Timer Command input Command output
Duration of
the Unblock-
ing pulse
EALR re-
lay delay
[ms]
S/N alarm
delay [s]
Pulse sup-
pression
[ms]
Command
extension to
min. [ms]
Limiting of
output time
[ms]
*) Increase
in output
time by [ms]
Double sys-
tem protection
0 2000 2 0 15 to 500 0
Single-phase
protection
0 2000 2 0 15 to 500 0
Switching
functions
0 2000 2 0 15 none 100
Switching functions: Time slot 20ms
*) If continuous signaling is activated the increase in the output time must be set to min. 180 ms
Table 54: Alarm settings for broadband versions
Single-purpose
operation
Alarms
Threshold for EAL in
[dB]
Activate EALR in
case of S/N alarm
Disable the outputs
in case of S/N alarm
Switch NDALR relays in
case of GAL
Double sys-
tem protection
-30 yes no no
Single-phase
protection
-30 yes no no
Switching
functions
-30 yes no no
Page - 58 Edition p3_3_2x 08/09 © SIEMENS AG 2008
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