Linear VS-GSWG manual Open and Close Limit Adjustment, Limit Nuts Rough Adjustment

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Operator Setup (cont.)

Open and Close Limit Adjustment

The limit nuts are not preset at the factory and must be adjusted for the gate in each installation.The limit switches are activated by two threaded nylon rotary limit nuts which are attached to a threaded limit shaft driven by a chain and sprockets from the main drive shaft. REMOVE THE CARDBOARD FILLER

BEFORE ADJUSTING THE LIMIT NUTS.

The Controller is factory setup for right-hand installations. The OPEN limit switches are the ones closer to the bottom of the operator. In left-hand installations, the CLOSE limit switches are the ones closer to the bottom of the operator (see Figures 7 & 8).

CAUTION

If the operator is installed in a left-hand installation. Set the Controller to left-hand operation BEFORE running the operator for the fine setting of the limit cams. Failure to do so will result in over-shooting the limit switches, and may cause damage to the operator and/or gate. Refer to programming on Page 12.

RIGHT-HAND

INSTALLATION

CLOSE LIMIT NUT

CLOSE LIMIT

CLOSE LIMIT

SWITCH (LSC-2)

SWITCH (LSC-1)

OPEN LIMIT

 

 

OPEN LIMIT

SWITCH (LSO-2)

 

 

SWITCH (LSO-1)

LSC-2 & LSO-2

LIMIT

OPEN LIMIT NUT

LSC-1 & LSO-1

SHAFT

 

CONTROL MOTOR

 

BOTTOM OF

CONTROL GATE

SPEED RAMP UP & DOWN

 

OPERATOR

FULL OPEN AND CLOSE

Figure 7. Limit Box Assembly (Right-hand Installation)

Limit Nuts Rough Adjustment

Before running the operator, set the limit nuts as follows:

1.With the gate connected to the gate operator in a mid-travel position, turn the power disconnect switch OFF.

2.To adjust the limit nuts, press down on the detent plate and rotate the limit nut along the threaded shaft (see Figure 9).

3.Adjust the OPEN limit nut until it is about 1/2” from activating the LSO-2 OPEN limit switch.

4.Adjust the CLOSE limit nut until it is about 1/2” from activating the LSC-2 CLOSE limit switch.

Limit Nuts Fine Adjustment

After fi nishing the rough limit nut adjustments, run the operator to set the fine limit adjustment.

1.Turn the power disconnect switch ON.

2.Stand clear of any moving parts and press the OPEN button.

3.After the gate opens, press the CLOSE button.

4.Observe the gate in both directions as it runs through each complete cycle. Adjust the open or close limit nuts again if necessary. Fine levels of adjustment can be made by adjusting a few teeth on the nut at a time. If the gate stops during travel, you may need to adjust the Open or Close Current Setting or the Maximum Run Timer (see Pages 13-14).

Setting Speeds using LSO-2 & LSC-2

Limit switches LSO-2 and LSC-2 control when the operator accelerates to maximum speed and decelerates to minimum speed. It is recommended that LSO-2 and LSC-2 are adjusted fi rst so the gate slows to near stop before hitting LSO-1 or LSC-1 as these will apply the brake upon activation.

Adjust LSO-2 and LSC-2 by slightly loosening the two screws which hold them in place and sliding toward or away from the center of the limit box. Care must be taken not to adjust too close to the center as the limit nut may travel past the switch and start accelerating at the end of the cycle.

LEFT-HAND

 

INSTALLATION

OPEN LIMIT NUT

 

OPEN LIMIT

OPEN LIMIT

SWITCH (LSO-2)

SWITCH (LSO-1)

CLOSE LIMIT

 

 

CLOSE LIMIT

SWITCH (LSC-2)

 

 

SWITCH (LSC-1)

LSO-2 & LSC-2

LIMIT

CLOSE LIMIT NUT

LSO-1 & LSC-1

SHAFT

 

CONTROL MOTOR

BOTTOM OF

CONTROL GATE

 

SPEED RAMP UP & DOWN

 

OPERATOR

FULL OPEN AND CLOSE

Figure 8. Limit Box Assembly (Left-hand Installation)

PRESS DETENT

PLATE DOWN

ROTATE

LIMIT NUT

Figure 9. Setting the Limits

VS-GSWG Swing Gate Operator Installation Guide

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P1250 Revision X6 7-8-2011

 

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Contents VS-GSWG Table of Contents Pre-installation Information Safety Information and WarningsDC Control and Accessory Wiring Wiring SpecificationsAC Power Wiring Mounting Specifications Mounting Pad InstallationGate Preparation Gate Arm Installation Vent Plug InstallationGate Arm Assembly Operator PreparationOperator Setup Controller AccessAC Power Connection Earth GroundOpen and Close Limit Adjustment Limit Nuts Rough AdjustmentLimit Nuts Fine Adjustment Setting Speeds using LSO-2 & LSC-2Torque Limiter Adjustment Loosen the set screw on the adjustment nutController Features ButtonsIndicator Descriptions Apex Function Display IndicationsTerminal Descriptions Terminal Group FunctionOperator Accessory Connections Operator Accessory ConnectionsBasic Controller Programming Maximum Close Direction Current Setting Run Alarm and Pre-start AlarmMaximum Open Direction Current Setting Advanced Controller Programming Auxiliary Relay Mode Reverse Delay TimeBrake Delay Time Constant Pressure ModeReset Cycle Count Maintenance Alert TriggerAnti-tailgate Enable Radio EnableReset Controller to Factory Defaults Radio Transmitter LearnRadio Transmitter Delete MGT Obstacle Transmitter LearnLoop Layout Illustration Safety Edge Layout Illustration Photoeye Installation Illustration Optional In-Cabinet Heater Dual Gate InstallationsOpen and Close Limit settings Gate Operation Operation IndicationsError Indications EntrapmentComm Link Connection Failure MGT Obstacle Transmitter TroubleTroubleshooting Preventative Maintenance Month Preventative MaintenanceFCC Notice GeneralModel VS-GSWG Exploded View Model SWG Mechanical Parts List Controller Parts List Variable Speed Control Box AssembliesVariable Speed Drive Programming Programming the Hitachi InverterGate Arm Assembly Parts List Shown for Clarity only not Included in ARM AssemblyThis page left blank intentionally Gate Operator Installation Checklist