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BUFFER TEST
The physical goal of the buffer test for a hydro system is to run the car at full
speed down onto the buffer under power without dropping the down valve. On
hydro systems this is only done in the down direction to test the car buffer.
Hydro systems:
1. Make sure the hoistway and car-top are clear of any personnel and then
move the car to the center of the hoistway to ensure the car runs at contract
speed.
2. Set all the slowdowns to a value of 00001. This will be done for the fastest
speed (usually S1 for Hydros). To do this go to MAIN MENU | SETUP | SPEEDS
& SLOWDOWNS | S1 | S1 SLOWDOWNS | S1 ALL.
a. Step 1: Record original value of S1 All:__________
b. Step 2: Temporarily change S1 All to 00001 to perform test.
3. On the Din Rail:
a. Jump the UET (UET) to DET (DET) terminals together. This will bypass
the UET / DET switches.
b. Bypass the safety string by jumping terminal SF1 to terminal 120 on
the Din Rail. This will allow you to move the car away from the
overhead/buffer.
4. Enter a Car call to the bottom landing. The car should go full speed onto the
buffer. Care should be taken when operating the car at full speed without
safety features in place.
Test Completion:
1. Restore all slowdown values recorded in Step 2.
2. Run the car in MR Inspection up above the bottom landing door zone.
3. On the Din Rail:
a. Remove the jumper from UET (UET) to DET (DET).
b. Remove the jumper from SF1 to 120.
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