Hy-Security HRG 220 ST, Руководство по установке и обслуживанию, Страница: 55 / 71

Installation and Maintenance Manual
49
Troubleshooting
Trouble With Gate Movement in General:
1. Review the HRG index arm adjustment and the flow control valve adjustment on page18.
2. Inspect the operator for hydraulic leaks both in the control panel and the base of the operator
post, insure there is sufficient fluid in the reservoir, if not refill it to within 1” of the fill plug.
3. During operation listen for unusual sounds and investigate the source.
Electrical Problems in General:
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."
1. Verify that the line voltage is present and matches the operator v 10%.
2. In three phase applications insure that all three legs of line voltage pass though the power
disconnect switch to the motor contactor, in case one of the lines is dropped somewhere.
3. 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.
4. Verify a jumper wire joins Common to Stop, if an external stop button is not used.
5. Verify there are no Faults or Errors reported on the LCD display. See table on the next page.
6. If the motor contactor chatters, voltage drop due to undersized wires is the likely cause. Check
Appendix 9 for maximum allowable length of wiring runs vs. wire size.
"The pump is running but the gate panels don’t move."
(Hydraulic pressure is between 0 - 700 PSI on the gauge)
1. If the power is three-phase, verify CCW motor rotation and reverse any two AC lines if needed.
2. 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.
3. Unplug the hoses and run the pump, look at the pressure gauge to confirm the system pressure
reaches 1350 PSI. Re-attach the hoses when complete.
4. If relief pressure is not attained, remove the relief valve entirely and depress the plunger at the
nose end with a blunt tool (large Allen wrench) and blow it to remove any debris. Return the valve
to the power unit once cleaned.
“Hydraulic pressure is above 700 PSI”
1. Verify that the quick connectors at the hose ends are fully seated when connected.
2. Check the flow control valve, it must not be turned too far clock-wise. See adjustment instructions
on page 17.
"The gate panels move in the wrong direction."
1. Check hose connections to verify the correct order red to red and brass to brass.
2. With the system engaged to open, verify that the Open 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 may be stuck and need cleaning or replacement.
2. If the gate only closes, the valve coil is not being energized, or is defective.