Basler BE1-67N Instruction Manual

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Basler BE1-67N Instruction Manual Manual pdf 44 page image

BE1-67N Installation4-6NOTEConfirm that the TEST/NORMAL switch (callout O of Figure 2-2) is in the NORMALposition.NOTEOperational tests provided here for time overcurrent pickup, non-directional instantaneousovercurrent pickup, and directional instantaneous overcurrent pickup are performed usingonly voltage polarizing (VO)) inputs.OPERATIONAL TEST PROCEDURE (Sensing Input Ranges 1 and 2)Preliminary Test SetupStep 1. Connect the circuit as shown in Figure 4-5.Step 2. Adjust TAP CAL control fully CW.Step 3. Set TIME DIAL to 99.Step 4. Set TAP selector switch to position A.Step 5. Adjust DIR INST. and NON-DIR INST. controls fully CW.Step 6. Set CHAR. ANGLE switch to 0( position.Step 7. Set polarizing source select switch (callout Q of Figure 2-2) to dual polarization (VO and I Oswitches up).Step 8. Verify that proper power supply voltage and operating frequency (50 or 60 hertz) is connectedto relay case terminals 3 and 4. (See Section 1 for ranges of each supply.)Step 9. Insert relay connection plug(s).Step 10. Verify that POWER, DIR. TIMING INHIBIT, and DIR. INST. INHIBIT LEDs are lit and that therelay fail contacts are functioning properly (terminals 19 and 20).Time Overcurrent Pickup TestStep 1. Perform the preliminary test setup.Step 2. Adjust polarizing input voltage source (VO ) for 4 Vac at 0( phase angle.Step 3. Adjust IOP input current source for .25 A (low range) or .75 A (high range) at 0( phase angle.Step 4. Slowly turn TAP CAL control CCW until TIMING LED is lit, verifying the minimum pickup pointof the range.Step 5. Turn TAP CAL control fully CW. The TIMING LED will extinguish. Slowly increase magnitudeof input current until TIMING LED is lit. The input current level should be within ± 5% of 0.375A (low range) or 1.125 A (high range). This verifies pickup accuracy of the TAP A setting.Step 6. If verification of remaining TAP selector positions is desired, adjust TAP selector to its next CWposition, then slowly increase magnitude of input current until TIMING LED is lit. Observe that