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.
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.
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 |
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.
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.