Final Adjustments
3-44 Manual # 42-02-2P24
Counterweight Safety Test
The counterweight safety test verifies the operation of the counterweight safeties. The test is
comparable to the car safety test but performed in the opposite direction. If the counterweight
has a governor, remember to jumper it out.
1. Run the car to the bottom landing.
2. Set F3 > Controller System Menu > AUTOMATIC MODE FAULT BYPASS = BYPASS
ON.
3. KEB/Torqmax only. Set LF.22 Gear Ratio to LF.25 x 2.
4. Set F7 Parameter 141 PROFILE SCALE to 115% (mechanical tripping speed is typically
about 115% of Contract Speed).
5. Bypass the Electrical Governor Switch by placing a jumper between GOS1 and GOS2.
6. Place a call to the top landing.
7. As the counterweight over speeds
• The governor will trip
• Safeties will set
• The machine will break traction
• Car will stop
8. Place the car on Inspection. Reset the governor.
9. KEB/Torqmax only. Return drive parameters to their original values.
10. Return F7 controller parameters to their original values.
11. If an unintended motion fault was triggered, on the TC-MPI board, press and hold the
EB RST button for 8 seconds.
12. Set F3 > Controller System Menu > AUTOMATIC MODE FAULT BYPASS = BYPASS
OFF.
13. Remove the jumper between GOS1 and GOS2.
14. On the HC-CTL board, place a jumper between terminals SAFC and SAFH.
15. Run the car down on Inspection to release the counterweight safeties.
16. Remove the jumper between the CTL board terminals SAFC and SAFH.
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.
Discrete Brakes - No Brake Module
1. For safety, station a mechanic at the landing where the test is to be performed.
2. Bring the car to the landing away from the terminals and place on Independent service.
3. Load the car as required (100% or 125% of load). Place barricades to prevent entry.
4. Use a non-metallic object to press and hold contactors, BR and BRX (to allow the car to
drift from the floor).
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.
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