12
VI. Operating Instructions
The CLF5000/PLL may be operated either locally at the front panel, or remotely through the 25 pin sub-miniature D
connector (J1) on the rear panel.
A. Local Operation
NOTE:
AC interlock Pins 1-14 must be jumped for the unit to be operated.
1. Check to see that coolant is running through the unit and that a proper RF load is connected to the RF
output connector at rear of unit. Assure that RF interlock cover is installed and s ecured.
2. Connect unit to 208VAC nominal, 3 phase and turn on main power breaker at rear of unit.
3. Turn on interlock circuit breaker on front panel and verify that red AC ON LED and the yellow
LOCAL LED light are on. If the yellow REMOTE LED is lit instead of the yellow LOCAL LED,
remove any connection to the REMOTE/LOCAL control lines, Pins 17 & 4 of the rear panel analog
remote 25 pin ‘D’ connector.
4. RF ENABLE should activate, and the red LED should illuminate when RF Enable toggle switch is
pulled out, then up.
5. RF is disabled by pulling out and toggling down the front panel RF ENABLE toggle switch, or by
interrupting the AC mains via the AC interlock loop (Pins 1 & 14 of rear panel ‘D’ connector), the
front panel interlock circuit breaker, or the circuit breaker located on the rear panel.
6. The CLF5000/PLL regulates delivered power based upon the setpoint selected by the front panel power
control knob.
7. The front panel digital meter and selector switch shows power level setpoint, actual delivered power,
output frequency, and reflected power.
8. An overtemp condition due to lack of coolant flow or high coolant temperature will automatically
disable RF output of the CLF5000/PLL. The front panel OVERTEMP LED will light. The remote
overtemp indicator at J1 will respond. RF will be disabled until proper coolant flow/temperature is
established, and either the AC power or RF enable signal is recycled.
B. Remote Control Operation
Refer to above “Electrical Specification,” Section II.A.7 for electrical interface specification. For remote
control operation follow the first two procedures for local control as listed above.
1. Turn on interlock circuit breaker on the front panel and verify that the red AC POWER LED lights.
2. Energize Pins 17 & 4 of rear panel I/O connector as outlined in Section II.A.7. The red RF ENABLE
LED should illuminate, and readings of delivered and reflected power and frequency should be
appropriate.
3. The power setpoint voltage on Pin 22(+) and 9(-) of the rear panel connector will determine the output
power level. A voltage of 0 to 10 volts DC across Pins 22 and 9 will linearly correspond to a RF
output of 0 to 5000 watts.
