SEREN R301 Operator's Manual download pdf (Page 115)

RX01/LX01 SERIES RF POWER SUPPLY OPERATOR’S MANUAL

Problem Solving

Problem Solving Chart

Front Panel Alarm Messages

The following chart lists common problems and front panel alarm messages that may occur

and the recommended solutions. Follow the suggested solutions until the problem is corrected.

If the problem persists, please contact Seren IPS Inc. customer service or a Seren IPS Inc.

service representative.

Condition Suggested Solution

Front panel display does not

illuminate

Check the power connector – ensure it is properly seated in

the AC Mains power inlet.

Verify rear panel circuit breaker is in the “1” (on) position.

Ensure the Analog Interface Connector is fully seated.

Models R101, L101, R301, L301: ensure the Analog

Interface “MAINS INTLK” circuit is completed – connect

pin 1 to pin 14 on the analog interface connector.

Verify the front panel power switch is in the “1” (on)

position (depressed).

Cannot enable the RF output

by pressing the front panel RF

ON/OFF button

Ensure the Analog Interface Connector is fully seated and

the Analog Interface “INTERLOCK” signal is at a TTL

“low” state – apply a TTL “low” signal to pin 2 of the

Analog Interface Connector or connect pins 2 and 15

together on Analog Interface Connector.

Verify the unit is in “Panel” control mode – check the front

panel display, line 2, left-hand side. “PANEL” should be

displayed. For information on changing control mode, refer

to the “Control Source” heading in the Operation section.

Cannot enable the RF output

by pressing the front panel RF

ON/OFF button, or via the

Analog or Serial Interfaces.

The text “EXT” is shown on

line 2 of the front panel

display

The Analog Interface “INTERLOCK” signal is at a TTL

“HIGH” state – disabling the RF output.

Ensure the Analog Interface Connector is fully seated

Apply a TTL “low” signal to pin 2 of the Analog Interface

Connector or connect pins 2 and 15 together on Analog

Interface Connector.

When in ANALOG control

mode, the RF output power is

erratic and/or fluctuates.

Ensure the Analog Interface connector GROUND RETURN

signal (GNDI, pins 9, 16 and 17) is connected to the system

common ground reference.

Page 107

Seren IPS Inc.

6100220000 Rev. 1.09

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SEREN R301 Operator's Manual Page 115

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