Commissioning Tests
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Commissioning Tests
Overspeed and reversal errors may need to be demonstrated during commissioning tests.
Step Overspeed Error
1. After completing a learn run at contract speed, record the values for parameters F3-01,
F3-02, F3-05, and F3-06. They should all be very close to the same number. (They are
learned speeds from the four step sensors.)
2. Manually change one of the step sensors parameters to a value 20% more than the
learned value.
3. Record the handrail learned values (F3-03, F3-04, F3-07, and F3-08). Set all of them to
0 (zero) to temporarily disable handrail speed checking.
4. Start the escalator and observe that an overspeed error is generated.
5. Set the changed step sensor value and the four handrail values back to the recorded set-
tings.
Regarding the preceding test, the error was generated because the controller was expecting the
time between pulses to be 1200 mS when it was actually 1000 mS. This is greater than the
allowed error (default is 15% as defined by parameter F3-09) so the overspeed error was gener-
ated. Note that the learned values represent time between sensor pulses so, the lower the num-
ber, the higher the frequency of the pulse (or, the faster the steps are travelling).
Reversal
For this test, parameters F4-06 and F4-07 must be set to 1 to enable reversal detection.
1. After completing a learn run, switch the inputs at S2 and S3 on the J1 connector of the
EC-MCB board.
2. Start the escalator. Observe that a reversal fault, E-01, is generated.
3. Return the S2 and S3 connections to the correct positions.
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