Instruction manual

UNL = Unlisten

SPE = Serial Poll Enable

SPD = Serial Poll Disable

SBN = Status Byte Negative, where BIT 6 = 0 (BIT 7 is the MSB)

SBA = Status Byte Affirmative, where BIT 6 = 1 (BIT 7 is the MSB)

6.4.4 Installation procedure for GPIB interface option in the VSP series power

Refer to the general assembly layout of the VSP series power supplies. In the

standard units RS232 interface is provided by default. Accordingly, at the location no.

12 the RS232 interface card (ISO-RS232 CONV-0304A) is installed. Also the control

card required for GPIB option (SBC-IEB-0504A) is not installed at location no. 18. The

connectors required for its control supply are secured on the spacers provided for

mounting.

The GPIB installation kit contains the following cards and the cables.

1)GPIB control card: SBC-IEB-0504A – 1 No.

2)GPIB interface card: INSTR- TO – GPIB – 1188

3)26 pin FRC cables: 2 no.

4)16 in FRC cable: 2 no.

Following procedure should be followed for the GPIB option installation:

1) Remove the top cover of the unit in which the GPIB option needs to be installed by

unscrewing the mounting screws. (3 screws on each side and 6 screws on the top)

Please do not remove the screw provided for the top cover earthing on the rear top of

the cover. Remove the spade connector provided for top cover earth connection, after

removing the cover to take it out.

2) Refer to general assembly drawing for the detailed description of the cards inside the

unit.

3) Remove RS232 interface card (ISO-RS232 CONV-0304A) at the location no.12. (2

screws from the rear panel and one from the top)

4) Remove VSP-DAC-CONV-0604A, at the location no. 20 by removing the ‘L’ type

clamp provided in the new version units or by removing the cable tie in the old version

unit.

5) For serial interface (RS232), the micro-controller on the front panel control board is

served as the main controller accordingly it is flash programmed. For GPIB option, the

SBC – IEB –0504A card has an EPROM with the main program burned in. The con-

troller on the front panel control board is served as slave controller for displaying the

control parameters. Accordingly, it needs to reprogram for the same. Please follow the

procedure for reprogramming.

6) Reprogramming of front panel control PCB for GPIB option:

a) Make sure that the folder named msp_vsp_gpib exists in the pc where the IAR

embedded workbench is installed.

b) Connect the JTAG connector to J1 of VSP-DPM-CONT-1204D (location no. 9).

Please make sure that pin no. 1 of female connector (16 pin) corresponds to

pin no. 1 of male connector (14 pin).

c) Run IAR embedded workbench.

d) Open the project named VSP_INTG from the msp_vsp_gpib folder.

e) Select the correct path for GEN.xcl (d:msp_vsp-gpib\gen.xcl).