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General

The tuner is located on the face of the EIO opposite to the waveguide output flange.

Tuning is achieved by the rotation of the tuning knob or operation of the tuning motor.

Clockwise rotation of the tuner INCREASESthe frequency.

CAUTION:

DO NOT ATTEMPT TO DISMANTLE THE TUNING MECHANISM. CONTACT COMMUNICATIONS & POWER INDUSTRIES CANADA INC., FOR ADVICE IN THE EVENT OF TUNER MALFUNCTION

The tuning range of the tuner is limited by mechanical stops. Damage may result if an attempt is made to tune beyond the range established by the stops. The stops normally allow the EIO to be tuned over a range greater than the frequency range specified for the EIO.

CAUTION:

UNNECESSARY TUNING SHOULD BE AVOIDED

Motor Tuned EIO (If Applicable)

For a motor tuned EIO check that the following accessories are included.

Power connector
USB thumb drive with software
USB to RS-232C cable
Communications Cable with RS-232C connector
Regulated DC Power Supply with Power cable

System Configuration

The system is configured as shown below. the USB to RS-232C cable may be required to connect the computer.

The DC power supply operates at 24 VDC.

DY-Polarized Target > Tuning Procedure > System Power Configuration.jpg

Precautions for Use

This section covers limitations the user should consider when using the motor.

Make sure the motor's surface temperature does not exceed 100°C during use. Although the motor has a protective function for overheating, the device's bearing life may deteriorate depending on the operating conditions.
Do not change input voltage during operation. The motor reads the initial input voltage to set parameters for optimal performance. Reset the home frequency position after input voltage is changed.
Turn off power to the motor in the event of a power failure, or the motor may suddenly start when the power is restored and may cause injury or damage the EIO.
Keep fingers and objects away from rotating parts between the motor and EIO to prevent injury and/or damage to equipment.

Motor Features

This section describes the functions of the various features found on the motor.

DY-Polarized Target > Tuning Procedure > motor features.jpg

Connecting Power to the Motor

Power to the motor is supplied by a DC power supply. Using the power connector, connect the motor to the power supply. For reference the pin assignments are as follows;

Pin #	Signal	Type	Description
1	+VDC	Input	+24 VDC Power Supply
2	GND	Input	GND for Power Supply
3	FG		Frame GND

DY-Polarized Target > Tuning Procedure > pin assignments.jpg

Connecting to a Personal Computer

Connect the PC and motor together using the communication cable. Use the RS-232C communications port of the PC. A USB to RS-232C adapter may be required if the PC does not have an RS-232C port.

DY-Polarized Target > Tuning Procedure > connect to PC.jpg

The pin assignments for the connector are as follows;

Pin #	Signal Name
1	GND
2	TX
3	NC
4	NC
5	RX
6	GND

Communications Specifications;

Item	Description
Electrical Characteristics	In conformance with RS-232C
Transmission Method	Start-stop synchronous method, NRZ (Non-Return Zero), full duplex
Data Length	8 bits, 1 stop bit, no parity
Transmission Speed	Selectable: 9600, 19200, 38400 bps (9800 is default)
Protocol	TTY (CR+LF)
Connector Specifications	Connector (6 lines, 6 pins)
Cable Length	15 m max. (but be as short as possible)

NOTE:

If the motor is in operation and communication between the computer and motor are interrupted for any reason (cable cut, program shutdown, etc) the motor will continue executing the last command. In such a case there is no way to stop the motor without removing power to the motor.

Operating the Motor

Refer to the software manual for instructions on loading and operating the software.