TDK 1500W, 750W - page 59

83

-

507

-

013 Rev. D

51

7.4 MD MODE OPTION (Factory Installed)

7.4.1 MD Mode Description

The GEN supply is capable of operating in a multi drop e

nvironment

-

more than 1 supply co

n

ducting

serial communications on a single serial bus. A maximum of 31 GEN supplies can operate in this si

n-

gle bus. Upon power up the Gen will enter the point

-

to

-

point mode in which it is a

s

sumed that only 1

supply will op

erate on a serial bus. MD Mode must be enabled

-

Ref. Section 7.10.2.2. The user must

set all Slave supplies to a unique address. No two supplies may have the same address.

7.4.2

MD Mode enable

–

Serial communication mode

Refer to section 7.10.2.2. MD Mode is en

tered into via a Single byte command. In MD Mode the Ma

s-

ter supply shall operate in one of the two serial modes, RS232 or RS485, depending upon the rear

panel DIP switch setting and the Slave supplies shall operate in the RS485 s

e

rial mode.

7.4.3

MD Mode SRQ

In

MD Mode the SRQ generated by the supply is replaced by a single byte SRQ sent two times in s

e-

quence. The SRQ byte, in binary, will contain the address of the supply in the least significant 5 bits

with bits 5 and 6 set to logic zero and bit 7 set to logic

1. Ref. Table 7

-

4.

7.4.4

Communication Collisions

In MD Mode it is possible to have one supply issue an SRQ whileanother supply is transmitting

data/response to a command. When this happens, the HOST PC will receive garbled data and a

s-

sume that the data/respons

e was corrupted and thus re

-

send the command

-

the SRQ will probably

be lost. The method of recovery will be SRQ retransmission, Ref. Section 7.4.5, or pol

l

ing all attached

supplies to see who issued the SRQ

-

available by reading the SEVE? Regist

er.

7.4.5

MD Mo

de SRQ Retransmission

The supply can be commanded to retransmit the SRQ at regular intervals until it is answered to by the

HOST PC (Ref. Section 7.10.2.4). The retransmission interval is 10 ms plus the supply address mult

i-

plied by 20 ms.

Contents

Main GENESYS 750W/1500W - TDK Programmable DC Power Supplies Page Page Page Page Page Page TAB LE OF CONTENTS 83 F 1 WARRANTY LIMITATION OF WARRANTY WARRANTY SERVICE DISCLAIMER TRADEMARK INFORMATION SAFETY INSTRUCTIONS CAUTION INSTALLATION CATEGORY GROUNDING FUSES SAFETY INSTRUCTIONS ENVIRONMENTAL CONDITIONS SICHERHEITS - INSTALLATIONS ANWEISUNGEN Page CHAPTER 1 GENERAL INF 6 ORMATION 1.1 USER MANUAL CONTENT 1.2 INTRODUCTION Page 8 1.3 ACCESSORIES CHAPTER 2 SPECIFICATIONS mA Vout: 4 digits,accuracy:0.5%of rated current +1 count 4 digits,accuracy:0.5%of rated voltage+ 1 count Re-startmodes(AutoRestart, SafeStart) Baudrateselection:1200, 2400,4800, 9600and 19200 Page Page CHAP 13 TER 3 INSTALLATION 3.1 GENERAL 3.2 PREPARATION FOR USE 14 mount slides assembly 1: Rack Fig. 3 3.5 LOCATON, MOUNTING AND COOLING Fig.3-2: Stripped Wires installed in Strain Relief 16 3.8 TURN (Phoenix) Plug P/N: MC1,5/5-ST-3,81 Fig.3-4: J2 Sense connector default conn ection Page 18 3.9 CONNECTING THE LOAD Page Page Page Page +L + +L + 24 +L + 25 OUTPUT TERMINAL GROUNDING 3.10 LOCAL AND REMOTE SENSING Fig.3-14: J2 Sense connector location Page 27 CHAPTER 4 FRONT AND REAR PANEL CONTROLS AND CONNECTORS Table 4 the power supply front panel. 1 to review the controls, indicators and meters located on See Fig.4 Page 29 4.3 REAR PANEL CONNECTIONS AND CONTROLS Fig.4-2: Rear panel connections and controls 30 4.4 REAR PANEL SW1 SETUP SWITCH Fig.4-3: SW1 setup DIP-switch 4.4.2 aded screwdriver to change the SW1 switch setting. bl Off. Then use any small flat 32 4.5 REAR PANEL J1 PROGRAMMING AND MONITORNG CONNECTOR Page CHAPTER 5 LOCAL OPERATION 35 5.3 OVER VOLTAGE PROTECTION (OVP) 36 OUTPUT SHUT 5.7 5.6 5.5 37 5.8 2 for The SO control logic can be selected by the rear panel SW1 Setup switch. Refer to Table 5 solated from the power supply output. 38 START AND AUTO 5.11 SAFE RESTART MODES 5.12 OVER TEMPERATURE PROTECTON (OTP) 39 5.14 SERIES OPERATION Page 41 5.15 PARALLEL OPERATION Page Page 44 5.17 FRONT 5.16 DAISY CHAIN CONNECTION PANEL LOCKING CHAPTER 6 REMOTE ANALOG PROGRAMMING 6.2 LOCAL/REMOTE AN 6.1 INTRODUCTION ALOG INDICATION 6.3 LOCAL/REMOTE ANALOG INDICATION 46 6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND OUTPUT CURRENT 47 6.5 RESISITIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT 48 6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT 49 CHAPTER 7 RS232 & RS485 REMOTE CONTROL 7.1 INTRODUCTION 7.2 CONFIGURATION 50 7.3 REAR PANEL RS232/RS485 CONNECTOR Page 52 7.5 CONNECTING L=2m typ. L=2mtyp. Fig.7-3: RS232 cable with DB9 con nector (P/N: GEN/232-9) 53 7.6 COMMUNICATION INTERFACE PROTOCOL 54 7.7 ERROR MESSAGES 7.8 COMMAND SET DESCRIPTION Page Page 57 7.9 GLOBAL OUTPUT COMMANDS 58 7.10 SINGLE BYTE COMMANDS Page Page GEN750W model s program the power supply over the rated values. The power supply can accept values higher 5% than the table values, howeverit is not rec ommended to 4: Current programming range 62 7.11 STATUS, ERROR AND SR Q REGISTERS Status Registers Serial Fig.7-7: Status and Error Registers D iagram 9 for the Status Condition register bits. tion Register bits and Table 7 i Cond 7.11.2 Conditional Registers (continued) 7.11.3 r Remote mode. will be generated either in Local o The SRQ message is: Inn terminated by CR, where the nn is the power supply address. The SRQ Page Page 67 7.12 SERIAL COMMUNICATION TEST SET UP 68 CHAPTER 8 ISOLATED ANALOG PROGRAMMING OPTION 8.2 SPECIFICATION 8.1 INTRODUCTION S 69 8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR 70 8.4 SETUP AND OPERATING INSTRUCTIONS 71 CHAPTER 9 MAINTENANCE 9.5 PARTS REPLACEMENT AND REPAIR 9.2 UNIT 9.1 INTRODUCTION S UNDER WARRANTY 72 9.7 FUSE RATING