SEREN R301 - Analog Interface Operation; Analog Control Mode Configuration Steps

R301 RF POWER SUPPLY OPERATOR’S MANUAL
Basic Analog Interface Operation
Refer to the Rear Panel Controls and Connections and the Typical Interface Connections
sections for detailed analog interface operation and connection information.
Connect the R301’s RF output to a 50-Ohm, 500 Watt resistive load, Impedance
Matching network, processing system or other suitable load before enabling AC
mains Power.
1. Make control connections to the rear panel ANALOG INTERFACE connector.
2. Press the front panel POWER button (item 10) to enable mains power – the front panel
display will illuminate and momentarily display the firmware revision and copyright.
3. Select ANALOG control mode.
Note: The ANALOG control mode only needs to be selected once. The R301 RF power
supply will retain the selected control mode during a power-off/power-on cycle.
a. Press the PGM button (Item 1) once.
b. Press the DOWN button (item 2) or the UP button (item 3) until line 3 of the display
shows the current control source (PANEL CONTROL, ANALOG CONTROL, or
SERIAL CONTROL).
c. Press the VALUE UP button (item 5) or the VALUE DOWN button (item 6) until
ANALOG CONTROL is displayed on line 3.
d. Press the ENT button (item 5) to save the selection.
e. Press the RUN button (item 1) to exit the programming menu.
4. Select the desired leveling mode “Power” or “Voltage”.
!
Apply an open circuit or TTL “high” signal to Analog Interface Connector pin 4 to select
the power supply’s internal power sensor for power regulation. A contact closure
between Analog Interface Connector pin 4 and pin 16 or a TTL “low” signal applied to
pin 4 selects forward power regulation based on an external feedback signal
(FEEDBACK signal – Analog Interface Connector pins 12 and 24).
5. Apply the desired setpoint voltage to pins 21 and 23
6. Enable the Analog Interface Connector’s external interlock (INTERLOCK) circuit.
Connect Analog Interface connector pin 2 to pin 15 or apply a TTL logic “low” signal to
pin 2.
7. Enable the Analog Interface Connector’s RF On (RFON*) circuit. Connect Analog
Interface Connector pin 3 to pin 16 or apply a TTL logic “low” signal to pin 2.
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Seren IPS Inc.
6100130000 Rev. 0.05