Basler Electric BE1-700 User Manual

Page 327

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Step 3: Continue to decrease the voltage until OUT1 opens. UV inhibit pickup should occur within

±3

percent of 50V. Increase the voltage until OUT1 closes. UV inhibit dropout should occur at

±5

percent of inhibit pickup.

Step 4: (Optional.) Repeat Steps 1 through 3 for Setting Group 1.

Auxiliary Undervoltage and Overvoltage Timing Verification (3V0 VT Input)

Step 1: Using Table 13-47as a guide, transmit the first row of setting commands to the relay.

Table 13-47. 27X and 59X/159X Pickup and Time Delay Settings (3V0)

Pickup Settings

Purpose

Undervoltage

Overvoltage

S0-27X=10,2S,0

S0-59X/159X=30,2S

Sets 27X PU at 10 V, 59X/159X at 30 V, TD at 2 sec,
UV Inhibit disabled.

S0-27X=,5S

S0-59X/159X=,5S

Sets 27X PU at 10 V, 59X/159X at 30 V, TD at 5 sec.

S0-27X=,10S

S0-59X/159X=,10S

Sets 27X PU at 10 V, 59X/159X at 30 V, TD at 10 sec.

Step 2: Prepare to monitor the 27X and 59X/159X timings. Timing accuracy is verified by measuring the

elapsed time between a sensing voltage change and OUT1 closing.

Step 3: Connect and apply a single-phase, 20 Vac to Terminals C13 (polarity) and C16 (non-polarity).

Refer to Figure 12-4 for terminal locations.

Step 4: Step the voltage down to 5 volts. Measure the time delay and verify the accuracy of the 27X

time delay setting. Timing accuracy is

±5 percent or ±3 cycles of the time delay setting.

Step 5: Step the voltage up to 35 volts. Measure the time delay and verify the accuracy of the 59X/159X

time delay setting. Timing accuracy is

±5 percent or ±3 cycles of the time delay setting.

Step 6: Repeat Steps 5 and 6 for the middle and upper time delay settings of Table 13-47.

Step 7: (Optional.) Repeat Steps 2 through 6 for Setting Group 1.

Auxiliary Undervoltage and Overvoltage Pickup Verification (Fundamental Vx Input)

Step 1: Prepare the 27X and 59X/159X pickup functions for testing by transmitting the commands in

Table 13-48 to the relay. Reset targets.

Table 13-48. 27X and 59X/159X Pickup Test Commands

Command

Purpose

A=

Gains write access.

SL-N=NONE

Zero out custom logic settings. Overwrite with
LOGIC=NONE settings.

Y

Confirm overwrite.

SL-N=27X_59X/159X

Sets 27X_59X/159X as custom logic name.

SG-VTX=1,AN

Set auxiliary voltage parameters.

SL-27X=1,0

Enables 27X, disables blocking.

SL-59X/159X=1,0

Enables 59X and 159X, disables blocking.

SL-VO1=27XT+59XT+159XT

Enables OUT1 to close for 27X, 59X, or 159X trip.

SG-TRIG=27XT+59XT+159XT,
27XPU+59XPU+159XPU

Enables 27XT, 59XT, or 159XT to log and trigger fault
recording.

SG-TARG=27/59/159

Enables 27X, 59X, and 159X targets.

EXIT;Y

Exit and save settings.

9376700990 Rev M

BE1-700 Testing and Maintenance

13-31

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