HySecurity SlideDriver 50VF2 Installation And Reference Manual Download

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Section 7

— STC Troubleshooting

Section 2

– Mechanical and Hydraulic Adjustments* and Electrical Issues

Trouble with Gate Movement in General:

1. Disengage the operator from the gate and move the gate manually. If the gate does not roll well or is warped, fix the

gate before working on the gate operator.

2. For adequate grip, the red spring that clamps the drive wheels must be compressed to 2-inch in height. Adjust by

unclamping and turning the nut at the bottom of the threaded rod.

3. Look inside the operator under the wheels for metal shavings. Shavings indicate that the gate panel or the operator is

out of alignment. Realign the operator as necessary. The operator must always be square to the gate and the drive
rail must be shimmed if necessary to maintain an in/out tolerance of ¼-inch throughout full gate travel.

Electrical Problems in General:

The VFD Motor Controller displays trip and fault codes. The most common are shown in Table 7.1, page 55 which
explains the possible causes and resolutions. If you discover a trip code that is not in the table, refer to the

Commander

SK Getting Started Guide

published online by the manufacturer of the motor controller, Control Techniques, Ltd.

Similarly, the Smart Touch Controller reports system malfunctions on its LCD display and the buzzer will emit a series of
chirps at defined intervals. Review the matrix of Alerts, Faults and Errors listed on the next page. To disclose the status of
all inputs on the terminal strip, the LED tact button must be pushed. This button is in the upper left corner near the STOP
input.

Specific Types of Problems:

"I pushed the OPEN and CLOSE buttons, but nothing runs."

Verify that the line voltage is present and matches the operator v 10%.

Verify that control voltage is present at the power supply Common and 24VDC terminals. It may be necessary to
reset the circuit breaker (black button) on the transformer.

Verify a jumper wire joins Common (COM) to STOP, if an external stop button is not used.

Verify there are no Faults or Errors reported on the LCD display. See table on next page.

If the motor VFD intermittently shuts off, voltage drop due to undersized wires is the likely cause. See page 59 for
maximum allowable length of wiring runs versus wire size.

"The pump is running but the wheels are slow or not turning at all."

(Hydraulic pressure is between 0 - 700 PSI on the gauge)

1. Verify VFD display reads 50Hz or greater during normal operation. If not reading >50Hz, verify deceleration

switches and ramps are installed correctly.

2. If the motor has been replaced, verify CCW motor rotation. To reverse, switch any two AC lines between the

motor and the VFD.

3. Check the level of the hydraulic oil by removing the plug in the reservoir. If necessary, add oil at this location to

within one inch of the filler hole.

4. Unplug the hoses and run the pump. If the pressure is low, adjust the relief valve.
5. If relief valve does not respond to adjustment, remove it entirely and depress the plunger at the nose end with a

blunt tool (Allen wrench) and blow it to remove any debris.

“Hydraulic pressure is above 1100 PSI”

1. Unclamp and spread the drive wheels, then retest. If the wheels turn, verify that the gate will move by manually

pushing it. Fix the gate hardware if necessary.

2. Verify that the hose end quick disconnects are fully seated when connected.
3. Loosen brake valves a little by turning clockwise.

"The wheels turn backwards, or only in one direction."

Check hose connections for correct handing.

Press the Open button and verify that the directional Valve coil develops a strong pull. (This can be tested by
removing the nut retaining the coil and grasping the coil)

"The gate only opens or only closes."

1. If the gate only opens, the directional valve is probably stuck and needs replaced.

the

gate

only closes, the valve coil is not being energized, or is defective.

Refer to page 13, as well.