Siemens SENTRON 3WA1 - Parameter DAS+ Maintenance Mode; Zone-Selective Interlocking ZSI Parameters

Description
2.5 Electronic trip unit ETU600
3WA1 air circuit breaker
120 Equipment Manual, 02/2023, 92310000002-06
2.5.5.6 Parameter DAS+ maintenance mode
The settings for the maintenance mode DAS+ are independent of protection parameter
sets A and B.
Parameters
Setting range
Condition
Maintenance mode DAS+
Can be switched on/off
--
--
Current setting I
i DAS+
1.5 … 10 x I
n
--
Current setting I
g DAS+
I
g min
… 2000 A
1)
Ground-fault protection
available,
LSIG GFx
option plug
Time setting I
g DAS+
0 … 5 s
Ground-fault protection
available
1)
Depending on size
I
g min
: Sizes 1 and 2 = 100 A; size 3 = 400 A
2.5.5.7 Zone-selective interlocking ZSI parameters
The settings for the zone selective interlocking ZSI function are independent of
protection parameter sets A and B. They require the presence of the ZSI200 module.
Zone-selective interlocking ZSI (requires the ZSI200 module)
Parameters
Value
Received signal acts on short-time-delayed short-circuit
protection ST
Can be switched on/off
Received signal acts on ground-fault protection GF
Can be switched on/off
Sends signal on pick-up of short-time-delayed short-circuit
protection ST
Can be switched on/off
Sends signal on pick-up of ground-fault protection GF
Can be switched on/off
Delay tZSI for short-time-delayed short-circuit protection ST
0.04 … 0.4 s
Delay tZSI for ground-fault protection GF
0.04 … 0.4 s
Monitoring of the ZSI200 module in the startup phase
Can be switched on/off