Table of Contents
Advertisement
5
Dead line detection (DLD)
Dead line detection (DLD)
Prepare the terminal for verification of settings as outlined in
this chapter.
Measure the set operate values for currents and voltages. Observe the functional output signals
on the local HMI under the menu:
ServiceReport/Functions/DeadLineDet/FuncOutputs
It is also possible to configure the output signals to the binary outputs for testing purposes.
Procedure
1.
Set the currents and voltages in phases L1, L2, and L3 to their rated
values.
2.
Decrease the current in phase L1 slowly, until the DLD--STIL1 signal
changes to a logical 1.
Observe the functional output signal DLD--STIL1 on the HMI.
3.
Record the value and compare it with the set value IP<.
4.
Increase the current to its original value.
5.
Repeat steps
2
to
4
for phases L2 (signal DLD--STIL2) and L3 (signal
DLD--STIL3).
6.
Decrease the voltage in phase L1 slowly, until the DLD--STUL1 sig-
nal changes to a logical 1.
Observe the functional output signal DLD--STUL1 on the HMI.
7.
Record the value and compare it with the set value UP<.
8.
Increase the voltage to its original value.
9.
Repeat steps
6
to
8
for phases L2 (signal DLD--STUL2) and L3 (signal
DLD--STUL3).
10. Make sure that all signals are reconfigured to their initial state.
11. Continue to test another function or complete the test by setting the
test mode to off.
Chapter 13
Verifying settings by secondary
section 2 "Preparing for test"
injection
in
95
Advertisement
Table of Contents
