Emergency Brake Test - Unintended Motion - Machine Brake - MCi iControl User Manual

Emergency Brake Test - Unintended Motion - Machine Brake

Danger
The Emergency Brake test allows the car to leave the floor with doors open. Station person-
nel or use a positive means to make certain there is NO ONE in the car.
This test is to be use for installations where one or more machine brakes are used for (desig-
nated as) the emergency brake. This test verifies that moving the car away from a landing with
both the car and hoistway doors open (termed "Unintended Motion") will cause the Emergency
Brake (Machine Brake(s)) to be deployed and that such deployment will stop the elevator. This
test also demonstrates that the emergency brake will stop the car within 48" from the floor level
if it drifts. Please refer to "Typical Brake Test Circuit: Machine Brake Emergency Brake" on
page 4-50.
1. Load the car as required, empty car going up or 125% of full load going down.
2. Move the car to the landing where the test is to be performed.
3. To enable the brake test, place jumpers from terminal FB1 to FB1X and from FB2 to
FB2X (see Figure 4.6).
4. To test the emergency brake, remove the brake coil wires of the main brake from their
normal terminals, e.g., B1 & B2, and connect them to terminals BT1 & BT2. Note: If the
machine has a set of two or more brakes designated as the emergency brake, move the
brake coil wires for all brakes not being tested to terminals BT1 and BT2.
5. For safety, station a mechanic at the landing where the test is to be performed.
6. On the iView Safety Tests tab, select the Emergency Brake Test - Unintended Motion
(View > Safety Tests > Test Name parameter).
7. Follow on-screen instructions "To perform an unintended motion test-".
8. Click the "Arm Test" button. The car doors will open.
9. Press and hold the BRAKE TEST BUTTON to lift the brake(s) not being tested, and then
place a car call to the top or bottom terminal landing. The car will start to move with it's
door open and trip an Unintended Motion Fault.
10. The brake(s) being tested must activate and stop the car within 48" (1220 mm). Power is
removed from the driving machine and brake. Release the BRAKE TEST BUTTON once
the car has fully stopped. Place the car on Inspection and press the iBox "Fault Reset"
button to reset the fault.
11. Return the brake coil wires connected to terminals BT1 and BT2 to their normal termi-
nals.
12. Repeate steps 4 through 11 for any additional emergency brakes.
13. Repeat the test for the main brake(s), leaving the brake coil wires for the main brake
connected to their normal terminals and moving the brake coil wires for the brake(s)
designated as the emergency brake to terminals BT1 and BT2. Repeat steps 5 through 11.
14. When the tests have been completed, return all brake coil wires to their normal termi-
nals and remove the jumpers from terminal FB1 to FB1X and FB2 to FB2X.
Safety Tests
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