Siemens Sm@rt DAS User Manual page 21

Chapter 5
Commissioning/Troubleshooting
Commissioning - VL Sm@rt DAS
 Review drawings to identify the location of Sm@rt DAS
switches or HMI. The elevation will show the location of
the switches/HMI highlighted in Figure 5.6.
 The electrical view will show the breakers with Sm@rt
DAS highlighted in Figure 5.7.
 Starting with the VL breakers, go to the trip unit, scroll
and select "View parameter screen". Then select "View
protection" and then scroll through and review
instantaneous pickup. It should be set to either the
default settings, which are the minimum, or the settings
input by the user.
 Turn the DAS switch "on" for the VL breaker. The blue
light should then come on. Then refresh the
instantaneous pickup setting by scrolling up or down on
the keypad. Scroll back to review the instantaneous
settings. They should be 1.25x the breaker rating or the
settings set earlier into the controller. The preset values
for short time delay are 100ms and short time pickup is
1.25x the breaker rating.
 If the VL maintenance modes are changed, always test
maintenance mode and verify the new maintenance
mode settings on the VL.
Figure 5.6: Location of switches and lights
Figure 5.7: Location of circuit breakers with DAS
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