Traction Acceptance Tests
1-63
element
TM
Series
Brake Contactor Proofing Test
This test simulates a stuck brake contactor. The test should be performed with the car stopped
and with the car in motion. Once the fault is generated the car should not be allowed to move
until the contactor is unstuck.
Car Stopped at Floor
This test is performed with the car stopped at a floor.
1. Use a non-metallic object to activate the BR contactor.
2. Verify that the car will not run. Touch screen displays “BRP failed to turn off”.
Car in Motion
The car is in motion when this test is performed.
1. Place a call.
2. Once the car is in motion, use a non-metallic object to activate and hold the BR contac-
tor “on.”
3. After the car stops at the designated floor, verify that the car will not continue to run. (A
UIM, unintended motion fault, may occur if the car drifts far enough).
Ascending Car Overspeed Test
The mechanic must determine appropriate weight, if any, to be placed in the car for this test.
1. Bring the empty car to the bottom floor with car and hoistway doors closed and locked.
2. Observe car speed on the touch screen HOME screen and stand by to engage brake if
governor overspeed switch fails to open.
3. Use your preferred method to mechanically release the machine brake. The car will start
to move up the hoistway.
4. When the governor overspeed switch opens, the emergency brake will engage, stop, and
hold the car.
5. With power off, reset the governor overspeed switch. With power on, and the car on
Machine Room Inspection, reset the emergency brake: SCE-CPU board- Press/hold
UIM RST for 8 seconds; Press FLT RST.
Emergency Brake Test - Unintended Motion, Rope 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 (Rope Gripper) to be
deployed and that such deployment will stop the elevator. This test demonstrates that the emer-
gency brake will stop the car within 48” from floor level if the car drifts from the floor.
1. For safety, station a mechanic at the landing where the test is to be performed.
2. Load the car as required (100% or 125% of load). Place barricades to prevent entry.
3. Bring the car to the landing away from the terminals and, and with both hoistway and
car doors open, place on TEST service. An easy way to keep the doors open for this test is
to activate either of the Car or Hoistway Door Bypass switches.
4. Use your preferred method to mechanically release the machine brake.
5. As the car moves away from the floor, observe that the emergency brake stops and holds
the car within 48 inches (122 cm) of floor level.
6. To restore normal operation, verify doors are closed, place car on Inspection and press
the UIM RESET button on the SCE-CPU board for a minimum of 8 seconds until the
emergency brake resets. Press FLT RST on the SCE-CPU board.
