4-53
Safety Tests
iControl AC
4
Emergency Terminal Switch Overspeed Tests
Per switch, this test verifies that an emergency stop will be initiated if:
• an elevator moving at a speed greater than 95% of programmed contract speed encounters
the ETS switch in the direction of travel (DETS moving down; UETS moving up)
• an elevator using reduced stroke buffers is moving at a speed greater than the Overspeed 2
speed (95% of rated buffer speed) at the ETSL switch in the direction of travel.
Move the empty car far enough away from the terminal to achieve test speed by the time it
reaches the ETS/ETSL switch. While testing, the car will run toward the terminal without initi-
ating any form of slowdown. When the car activates the ETS/ETSL switch, it will execute an
emergency stop. The car will then finish the run to a landing at leveling or correction speed.
1. Go to the Configuration > Drive > General tab and verify that Emergency rate limited
stop is set correctly. It is generally set to 7.0, and must be greater than the Emergency
slowdown profile - Deceleration parameter.
2. Position the empty car far enough away from the target ETS/ETSL switch to allow a
speed to be reached that exceeds the Over Speed 2 value for that switch.
3. Go to the Diagnostics > Terminal Switches Status tab. Note the Overspeed 2 value for
the emergency terminal switch to be tested.
4. Select Emergency Terminal Switch Overspeed Test on the Safety screen.
Set the test Speed to the overspeed speed for the switch plus 10 fpm.
If the speed is set below the overspeed threshold, no slowdown will be initiated and the elevator/
counterweight will strike the buffer.
5. Follow on-screen instructions and perform the test. For additional information see “Ter-
minal Switch Overspeed and Position Faults” on page 4-54.
6. On the Operational Status tab, verify that the appropriate fault is shown in the Faults
window.
7. Continue testing remaining emergency terminal switch by repeating steps 1 through 7.
Normal and Emergency Terminal Switch Position Tests
1. On the Configuration > Terminal Switches tab, for the switch you wish to test, set the
position margin to a negative value (place a minus sign in front of the value).
2. If you are testing an up terminal switch, run the car past the switch in the up direction at
contract speed (if possible). If you are testing a down terminal switch, run the car past
the switch in the down direction at contract speed (if possible). The car should stop
using the Emergency slowdown profile parameters.
3. On the Operational Status tab, verify that the appropriate fault is shown in the Faults
window.
4. On the Configuration > Terminal Switches tab, set the position margin for the tested
switch back to the original positive value
5. Continue testing the remaining switches using steps 1 through 4.
To Next Page
Loading...
Need help?
General
