Basler BE1-CDS220, Instruction Manual

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BE1-CDS220 Testing And Maintenance 13-71
within the time limits programmed at an accuracy of
±
0.5% of setting or
±
2 seconds,
whichever is greater. Step the current up to each new level and verify the setting group change
and pickup accuracy.
Table 13-83. Automatic Setting Group Change Example Accuracy Limits - Increasing Current
Current Value
Sensing
Type
Above Switch
Threshold
But Below Next
Group Switch
Threshold and
51P PU
Time Comments
1 A 0.51 A 0.73 A - Starting point 50% of S0-51P pickup
0.77 A 0.88 A > 1 min Switch to SG1 (75% S0 51P pickup)
0.92 A 1.07 A > 1 min Switch to SG2 (90% S0 51P pickup)
1.13 2.1 > 1 min Switch to SG3 (110% S0 51P pickup)
5 A 2.55 A 3.6 A - Starting point 50% pickup
3.83 A 4.4 A > 1 min Switch to SG1 (75% S0 51P pickup)
4.59 A 4.595 A > 1 min Switch to SG2 (90% S0 51P pickup)
5.61 A 10.78 A > 1 min Switch to SG3 (110% S0 51P pickup)
Step 6. Verify that SG3 is the active setting group by sending the command RG-GRPACTIVE to the
relay. It should echo back that the SG3 is the active group. If your relay is supplied with the
HMI option, you may also verify the active setting group at the front panel interface screen
\STAT\OPER\ACTIVEG, 1.4.4.
Step 7. Send to the relay the commands in Table 13-84.
Table 13-84. Automatic Group Control Selection
Command Purpose
A= Gain access
CS-143=1 Selects 143 for TRUE operation
CO-143=1 Executes 143 TRUE operation (setting group 1)
E Exit
Step 8. Verify that the relay did not change to setting group 1 (SG1) by transmitting the RG-
GRPACTIVE to the relay. It should echo back that the SG3 is still the active group. This
verifies that the relay will not make any setting group changes from logic inputs while the
AUTO input logic is TRUE.
Step 9. Begin stepping down the level of current from one level to the next as shown in Table 13-85.
First step the current to just below the threshold limit for the amount of time listed. Monitor the
output contacts to verify that the setting group changed. If the active setting group does not
change, step the current down to just above the next group switch limit for the duration
indicated. This will verify the accuracy of the pickup return threshold. Continue stepping down
to each new level.
Table 13-85. Automatic Setting Group Change Example Accuracy Limits - Decreasing Current
Current Value
Sensing
Type
Below Switch
Timing
Threshold
But Above Next
Group Switch
Threshold
Time Comments
1 A 2.1 A 1.13 A > 1 min SG3 (110% SG0 51P)
0.98 A 0.86 A > 1 min Switch to SG2 (100% SG0 51P)
0.83 A 0.71 A > 1 min Switch to SG1 (85% S0 51P pickup)
1.13 2.1 > 1 min Switch to SG0 (70% S0 51P pickup)