DAIWA DR 7500 ROTATOR MANUAL3

User Manual: Pdf DAIWA--DR-7500-ROTATOR-MANUAL3

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HOBBY ELECi~~NCS

(ROUND) (PRESm)

MODEL DR-75CDR

MODEL DR- 76DDR

MODEL DR- 75DDX

MODEL DR- 76DDX

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OPERATION

DR-7500R/DR-7600R

I. Before switching on, make sure the wiring of the 6 leads between the

controller and rotator have been connected correctly. Connect the same

terminal number of the controller and rotator.

2. When unpacked, the controller indicator is set at the south position.

After confirming the wiring, switch on the power. The light on the

indicator panel will come on and the indicator will ShoW the direction of

the rotor.

3. Push CW (Right) switch and turn the rotator to the maximum Clock-wise

position. Tighten the antenna to the rotator at the desired starting

position. RemoVe the color panel and re-set the indicator to the direction

of the antenna.

4. When the cable between rotor and controller is cut accidentally, the

indicator StopS on the opposite direction of the start position

i.e. + 180°.

,OEERATION

~ -DR-7500X/DR-7600X ,

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I. Before switching on, make sure the wiring of the 6 leads between the

controller and rotator have been correctly connected. Connect the same

terminal numbers of the controller and rotator.

2. The pre-set knob has been set to North (Fully clockwise position)

when shipping. If the start position is altered the p+e-set knob can be

set as follows :

a) Set the preset knob to the fully clockwise position.

b Tighten the antenna to the rotator at the desired starting position.

Pull off the preset knob.

I.the preset knob to the start direction, then push the knob.

c)

d)

No.1 to No.1

No.2 to No.2 etc.

(I)

(2)

(1)

(2)

Gas pIpe

The antenna should be mounted close to the rotor as high winds produce a

bending force on the mast. We suggest one meter of antenna support pipe

as the practical limi t. The weight of the antenna should be downward on

the :rotor and the boom at the mast-to-boom clamp.

Balanced weight produces only downward thrust on the rotor and the

DR-7500a/DR-7600a has an axial load rating of 200 Kg.

Unbalanced installation results in some leverage force which strains the

mast at the clamping point on the rotor. Care should be given especially

in high wind areas. When installing a bigger-than-medium antenna, an

inside tower mount with a STAY BEARING Located

at the top of the tower is recommended.

Care mast be taken to align the TOP BEARING

exactly with the center of the rotor.

The size of the 6 conductor cable is also

important 22 cable is good to about 30 meters

for greater lengths 20 cable or larger

should be used.

When running co-ax. cable be sure to leave

enough slack to allow the antenna to rotate

a full 360 degrees.

(Fig. 8)

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CAUTION :

When not is use, turn the power switch to OFF. The rotor gear train is

bracked mechanically. When the rotor reaches end, RELEASE THE SWITCH

IMMEDIATELY. If you keep pressing the switch, damage to the motor or

gear train may occur. ~c motor used is of a five min~te intermitt.~n:t

rating. However it can continuously run for as ten minutes, provided the

motor is brought to rest no less than ten minutes afterward.

THE RESISTANCE CHART

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Resistance of 6 conductors cable :

0.5 '%, square conductor wire ( # 20) 1 ohm/40 meter

0.3 m,." square conductor wire ( # 22) 2 ohm/40 meter

DR-7600

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( * The value at full CW or CCW position)

.rotator and controller has been adjusted in the factory. However, if

indication between the indicator and rotator has a more than 5° offset,

; the trimpot (located inside cabinet) as follows :

(Round Controller

(1)

(2)

) Set the pre-set knob to the fully clockwise position.

\-1 Adjust the trimpot to synchronise the rotator and preset knob at the

fully clockwise position.

CAUTION

When setting the trimpot to synchronise the angle of the rotator and

indicator, the rotation angle of the preset knob should be spread the same

angle of the rotator. If the trimpot is adjusted at over the rotating

position, the motor may be damaged by over-heating.

The LED (Operation indicator) will flash fully rotator position when the

trimpot is not adjusted properly. In such cases, readjust the trimpot.

The resistance of the cable is increased when using the control cable

longer than 40 ~eters. When the resistance is too high the LED will flash

at abo'.lt 00 -" 5 :pc=ition.

In these cases 0.75 m/m sq. is recommended to connect between the rotator

and controller.

CAUTION DR-75OOa (in the case of DR-750OX)

When the indicator (LED) of DC-7055 is flashing when the rotator is stopped

at the fully turned position, the motor in the DR-7500a might fail by

over-heating, because AC current is flowing in the motor when the LED is

flashing. Check the wiring of control cable.

Under so~e circumstance it is possible for RF interference to upset the

, In such cases the problem may be cured by inserting

beads or a high toroidal coil on each conductor of the control

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SCHEMATIC DIAGRAM

DC-7011

DC- 7055

DAIWA ROTOR I

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The specifications and/or circuit may be altered without notice.

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DAIWA ANTENNA ROTATORS

Medium duty rotator with DC-7011 round controller

~Medium duty rotator with DC-7055 pre-set controller.

Heavy duty rotator with DC-7011 round controll~ ;

Heavy duty rotator with DC-7055 pre-set controller. I

DR-7500R

DR-7500X

DR-7600R

DR-7600X

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