TDK-Lambda PHV Series User guide

IEEE DIGITAL INTERFACE SETUP MANUAL FOR
PHV Series High Voltage
POWER SUPPLY
Document: 83550130 Rev A
TDK-LAMBDA AMERICAS
405 Essex Road, Neptune, NJ 07753
Tel: [phone]
Fax: [phone]
Web: www.us.tdk-lambda.com/hp

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Table of Contents
1. Overview...................................................................................................................................3
1.1. Scope........................................................................................................................................3
1.2. ADDR LED................................................................................................................................3
1.3. Service Request (SRQ) LED.....................................................................................................3
2. Interface setup information........................................................................................................5
2.1. GPIB primary address (PA).......................................................................................................5
2.2. Other DIP switch settings..........................................................................................................5

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1. Overview
1.1. Scope
This manual applies to PHV series power supplies equipped with the IEEE digital interface
option. The manual describes setting the GPIB interface address only.
The IEEE interface programming commands can be found in the Digital Interface
Command Reference manual (document 83550100) downloadable from the PHV product
page: http://www.us.tdk-lambda.com/hp/product_html/PHVpower.htm.
The IEEE interface is located on the rear panel of the power supply. A sketch is shown
below.
IEEE Interface features
1- IEEE-488 interface connector
2- Configuration DIP switch (see section 2.1)
3- Interface Addressed LED (see section 1.2)
4- Service Request LED (see section 1.3
1.2. ADDR LED
This LED illuminates when the interface is either in listener addressed state or talker
addressed state.
1.3. Service Request (SRQ) LED
This LED illuminates when the interface asserts the SRQ line. After a serial poll the LED
extinguishes.
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2. Interface setup information
For normal operation, only the GPIB primary address should be adjusted using switches 1
through 5 if required. The other switches, 6 through 8 remain in the OFF position.
2.1. GPIB primary address (PA)
The GPIB primaryaddress (PA) enables identification of all units connected to an IEEE-488
bus system, and each unit connected to the bus must be assigned a unique PA.
The Host PC usually has PA=0 and the connected units usually have addresses from 4
upwards. Normally PHV power supplies arefactory configured with the PA set to 8.
The user can change the factory set PA via a DIP switch located on the IEEE-488 interface
converter on the rear panel of the unit (see the figure on page 3). It is not necessary to
open the power supply.
After changing a configuration switch, the power supply should be turned off for 5 seconds
and turned on again.
To change the GPIB PA, the user should only change switches 1 through 5. The unit is
factory set with switch 4 in the ON position and switches 1, 2, 3, and 5 are in the OFF
position (PA=8).
The switch settings follow the binary system:
Switch 1 has value 1
Switch 2 has value 2
Switch 3 has value 4
Switch 4 has value 8
Switch 5 has value 16
Example: To set the GPIB PA to 9, Switches 1 and 4 are ON, switches 2, 3, and 5 are
OFF. To set the GPIB PA to 20, Switches 3 and 5 are ON, switches 1, 2, and 4 are OFF.
2.2. Other DIP switch settings
DIP switches 6, 7, and 8 are special functions and are factory set to the OFF position and
the settings should not be changed. Contact the factory for further information.