Car/Counterweight Safety Test - MCi iControl User Manual

Car/Counterweight Safety Test

This is a two-part test. Car safety testing verifies operation of the car safeties. The objective of
the test is to set the safeties, causing the hoist motor to break traction. The over-speed must be
sufficient in magnitude to cause the governor to trip mechanically and to set the car safeties.
The electrical governor switch must not prevent the cars continued acceleration to the mechan-
ical trip speed and the safety-operated switch (plank switch) must not open the safety string. To
perform the Car Safety test:
1. Place a full load in the car.
2. Position the car some distance away from the bottom landing (about 10-feet per 100-
feet-per-minute of contract speed).
3. Set Test Speed to 125% of Contract Speed.
4. On the iView, Configuration > Pattern > Modes tab, verify that Deceleration and
Approach deceleration are set no higher than 2ft/s
5. Place a jumper between the #3 bus and the GOV terminal on the iBox to bypass tripping
the governor overspeed.
6. Place a jumper between SAFH and SAFC on the iBox to bypass the safety plank (SOS).
7. For TORQMAX F5 software v1.61 or earlier, on the drive keypad:
• Note the existing value of LF.57. Use the drive keypad to set LF.57 Speed Following
Error to 0 (Off).
• Record the value of LF.20 Contract Speed and LF.42 High Speed. Then change LF.20
and LF.42 to 130% of Contract Speed.
For TORQMAX F5 software v1.71 of later, on the drive keypad:
• Set LF.49 Over Speed Function Test to 130% of Contract Speed.
• Set LF.3 = OStSt Over Speed Test Function. With LF.3 displayed, press FUNC to dis-
play the present value. Press UP/DOWN until OStSt is displayed, and then press
ENTER to load the value. Car will over speed for one run only, after which parame-
ters are automatically reset.
8. On the iView > Controller > View > Safety Tests tab, select the Car/Counterweight safety
test. Complete on-screen instructions.
9. Place a car call distant enough to allow the car to reach the necessary speed. If neces-
sary, you may end the test and bring the car to an emergency stop using the iBox Stop
switch.
10. Remove jumpers placed for test.
11. Return TORQMAX drive parameters to original values. NOTE: TORQMAX parameter
LF.57 must be reset to its original value (On) or the drive will not run.
12. Check the hoistway ropes to make sure they are still in their proper grooves before
attempting to move the car.
13. Use whatever method is required to reset the safeties. For flexible quick-clamp safeties,
move the car on Inspection (UP and ENABLE buttons) to release the safety and restore
the safety string.
Counterweight Safety Test - The counterweight safety test verifies operation of the counter-
weight safeties. For this test, position the empty car near the bottom landing and arrange to
over-speed in the up direction. 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. Also,
remember to remove jumpers when tests are complete.
Safety Tests
2
to avoid tripping the drive.
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