Final Adjustment
4-54 Manual # 42-02-7223 C1
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. Place a full load in the car.
1. Position the car some distance away from the bottom landing (about 10-feet per 100-
feet-per-minute of contract speed).
2. On the iView > View > Configuration > Pattern > Modes tab/Standard profile, verify
that Deceleration and Approach deceleration are set no higher than 2ft/s
2
to avoid trip-
ping the drive.
3. On the Quattro DC Drive (if applicable), set A1-Overspeed Mult = 125% and set U4-
Overspeed Test = Enable.
4. Place a jumper between the #3 bus and the GOV terminal on the iBox to bypass tripping
the governor overspeed.
5. On the iView > View > Safety Test tab, set Speed, in fpm, to 125% of contract speed.
6. On the iView > View > Safety Test tab, select the Car/Counterweight Safety Test. Com-
plete on-screen instructions.
7. Remove jumpers placed for the test in steps above.
8. Place a car call distant enough to allow the car to reach the necessary speed.
Caution: If necessary, you may end the test and bring the car to an emergency stop
using the iBox Stop switch.
9. After the test has been completed and the car has stopped, check the hoistway ropes to
make sure they are still in their proper grooves before attempting to move the car.
10. Use the appropriate method required to reset the safeties. For flexible quick-clamp safe-
ties, move the car on Inspection (UP and ENABLE buttons) to release the safety and
restore the safety string.
11. To bypass the safety plank switch, temporarily place a jumper between SAFH and SAFC
on the iBox. Remove once the safeties are reset.
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 the overspeed
switch out. Remember to remove jumpers when tests are complete.
Electrical Governor Test
This test verifies that the calibration of the electrical governor switch is appropriate (typically
about 110% of contract speed) and that the car will execute an emergency stop once the electri-
cal governor switch is activated. When the car trips the electrical governor switch in the down
direction, it will execute an emergency stop.
1. Bring the car to the middle of the hoistway.
2. Check your mechanical governor nameplate for its tripping speed. Check the Contract
Overspeed setting on the iView > Setup > Safety tab. On the iView > Safety Tests tab, set
Speed, in fpm, sufficient to trigger the Contract Overspeed but not high enough to trip
the mechanical governor.
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