Basler Electric BE1-25 - Manual (Page 60)

Test Procedure
Step 1. Confirm proper sync-check operation at selected PHASE ANGLE settings with TIME DELAY set
at minimum (for convenience). Check that go/no-go operation is within specs.
If auxiliary contacts are supplied, check for proper switching action as relay cycles.
Step 2. With line and bus inputs in phase, check for proper operation of timer, using a time delay of 9.9
seconds, and again at 99 seconds (multiplier switch at 0.1 and at 1.0 respectively). (Close and
open the 52b input to begin and terminate the timing cycle.) Check that accuracy of timing cycle
is within specs.
Step 3. Check that operation of the sync function is inhibited during low voltage conditions of line or bus.
(a) Lower line and bus sensing input to 60 Vac and repeat Step 1. SYNC output should not be
inhibited.
(b) Lower the line sensing inputs to 20 Vac. Attempt Step 1. SYNC function is inhibited and
PHASE ANGLE LED should not turn ON.
(c) Return the line input to 60 Vac and lower the bus input to 20 Vac. Attempt Step 1. Sync
function is inhibited and PHASE ANGLE LED should not turn ON.
It is not necessary to determine the exact voltage threshold at which inhibition occurs in order to confirm
proper operation of this circuit.
Step 4. Verify that the voltage monitor controls operate over the specified range as follows.
(a) Rotate the LL and LB controls (front panel) fully CW; rotate the DL/NOT overvoltage and
DB/NOT overvoltage controls fully CCW.
(b) Adjust line and bus sensing inputs to 135 Vac.
(c) Slowly rotate the LL and LB controls CCW until LEDs turn ON. This should occur only a few
turns from the maximum (fully CW) position.
(d) Adjust line and bus sensing inputs to 10 Vac.
(e) Rotate the LL and LB controls CCW until their indicators LEDs turn ON. This should occur
only a few turns from the minimum (fully CCW) position.
(f) With input voltages remaining at 10 Vac, rotate the DL/NOT overvoltage and DB/NOT
overvoltage controls CW until their LEDs just light. Both adjustments should require only a
few turns from the minimum (fully CCW) position.
(g) Return line and bus sensing inputs to 135 Vac. (Both LEDs of step (f) must now be OFF.)
NOTE
A 00 setting of either control must inhibit the Sync-Check function.
If target option B (current operated target) is present, check that targets operate
at closure of the sync contacts. (Requires a minimum of 0.2 A in the output
circuit.)
NOTE
When making this test, observe that the PHASE ANGLE LED is turned ON
during the delay period, and that the SYNC LED flashes when the output
contacts close. (Both LEDs go out as soon as the 52b input is open.)
NOTE
Steps 4 through 8 check for proper operation of line and bus Voltage Monitor
(options 2-A, 2-C, 2-R, 2-S, 2-U, or 2-V). If these options are not present,
proceed to step 7.
5-4 BE1-25 Testing 9170200990 Rev U