GDS 450L, Installation And Maintenance Manual

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11
4.
V
ARIABLE
S
PEED
D
RIVE
U
NIT
(VSD)
•
The variable speed drive unit will, ramp up the speed of the operator and then ramp down prior to closing.
It must be remembered that the limit switches are to be set in a position which initiates the ramp down time.
Therefore, the limit switches need to operate much sooner than when there is no variable speed drive unit.
•
The accelerate and decelerate times have been set in the factory for the normal installation but can be changed if
necessary. Similarly, the speed that the gate operates at has also been set but can be changed (up to approx 70Hz).
•
NOTE changing the speed will change the position the gate will end up in its fully closed and open position.
(Unless limit switch cams are also adjusted accordingly).
Accelerate time (FN01) 5 sec
Decelerate time (FN02) 2.5 sec
Closing Speed (FN08) 40Hz
Running Frequency 60Hz
•
To change accelerate time: Press DSP/FUN button
Use arrows to select FN01
Press DATA/ENT
Use arrows to select new time
Press DATA/ENT
Press DSP/FUN
•
To change decelerate time: as above except select FN02
•
To change closing speed: as above except select FN08. If opening speed and closing speed is to be the same,
remove wire link between REV and SP1 terminals on invertor.
•
To change opening speed of operator: when display is flashing and showing Hz, use arrows to raise or lower the
Hz figure.
NOTE frequency upper limit has been set to 70Hz.
5. C
OMMISSIONING
•
Check that the limit switches are the correct way around by observing that the M1 op and cl
indicator led`s go out when the corresponding limit switch is activated. If they are the wrong
way around, swap over the M1 op and cl limit wires. They can be roughly set so they activate
approx 500 to 800mm before the gate reaches its end stops. Final adjustments can be made
later.
•
Position the gate halfway and turn the knurled knob clockwise until the clutch is firm enough that the gate will
drive, but the clutch will slip if it hits something at high speed.
•
If dual gates , u can leave one side disconnected (by putting both cams on limit switches) so adjustment can be
made easier without having to keep an eye on both gates at once.
•
Power up board and with gate in the half way position, press the opn or cls buttons to drive the gate
•
The corresponding ( green for open and red for close) led should start to flash, if they are the wrong way around,
turn power off to the operator, wait until the inverter powers down, then swap over any 2 of the motor phase wire
at the inverter. Turn power back on and test.
•
Run the gate again fully in each direction checking the limit switch positions.
•
Limit switches initiate the ramp down time so should not switch off the gates too soon (before reaching
conversely not too late, so the torque limiter is operating. Any speed or ramp time adjustments made from now
on will affect the final stop position of gate.
•
Tighten clutch ( torque limiter) knurled knob.
•
Set open & closed travel time as detailed in Setting Cycle Timers & Auto Close Times section.
•
Check that all safety devices work as designed.
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Install cover using screws provided in the front and sides to hold cover firm.
•
Provide full details to the owner concerning the operation and relevant maintenance and disconnect
details.