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TDK 750W HALF RACK 44 , 5.16 DAISY-CHAIN CONNECTION , 5.17 FRONT PANEL LOCKING

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83-507-5002 Rev. B

44

NOTE

With local sensing it is important to minimize the wire length and resistance. Also the positive and

negative wire resistance should be close as possible to each other to achieve current balance be-

tween power supplies

Fig.5-6: Daisy-chain connection

POWER SUPPLY

#

1

J1-2,3 J1-16 J1-16

J1-16

J1-15

PS_OK

POWER SUPPLY

#

2

J1-2,3 J1-15

PS_OK SO

POWER SUPPLY

#3

J1-2,3 J1-15

PS_OK

SO

SO

IF_COM IF_COM IF_COM

Fig.5-5: Parallel operation with Re mote sensing

MASTER

POWER SUPPLY

SLAVE#1

POWER SUPPLY

J1-25

J1-10

P

IPGM

+

V

-

V

+

V

-

V

+S

-S

LOAD

As short as possible

Twisted

pair

+S-S

+S

-S

Twisted

pair

J1-8 J1-12

To J1-10

SLAVE#2

POWER SUPPLY

+S

+LS

-LS-S

CAUTION Make sure that the connection between –V terminals is reliable to avoid disconnection

during operation. Disconnection may cause damage to the power supply.

5.16 DAISY-CHAIN CONNECTION

It is possible t o configure a multiple power supply system to shut down all the units when a fault

condition occurs in one of the units. When the fault is removed, the system recovers according to

its setting to Safe-start or Auto-restart mode.

Setup switch SW1, position 5 should be set to its DOW N position to enable the Daisy-chain op-

eration. Other SW1 positions can be set according to the application requirements.

If a fault occurs in one of the units, its PS_OK signal will be set to a low level and the display will

indicate the fault. The other units will shut off and their display will indicate “SO”. When the fault

condition is removed, the units will recover to their last setting according to their Safe-start or

Auto-restart setting.

Fig.5-6 shows connection of three units, however the same connection method applies to sys-

tems with a larger number of units.

5.17 FRONT PANEL LOCKING

The front panel controls can be locked to protect from accidental power supply parameter

change. Press and hold the PREV button to toggle between “Locked front panel’ and “Unlocked

front panel”. The display will cycle between “LFP” and “UFP”. Releasing the PREV button while

one of the modes is displayed, selects that mode.

Contents

Main GENESYS 750W HALF RACK Programmable DC Power Supplies TDK-Lambda Americas Inc. Page Page GENESYS Manual Supplement FOR UNITS EQUIPPED WITH IEMD OPTION. ALSO REFER TO MANUAL 83-030-200 IEMD. Page Page Page Page 83-000-016 Rev. F WARRANTY LIMITATION OF WARRANTY WARRANTY SERVICE DISCLAIMER SAFETY INSTRUCTIONS CAUTION INSTALLATION CATEGORY GROUNDING FUSES SAFETY INSTRUCTIONS ENVIRONMENTAL CONDITIONS SICHERHEITS-INSTALLATIONS ANWEISUNGEN Page 6 CHAPTER 1 GENERAL INFORMATION 1.1 USER MANUAL CONTENT 1.2 INTRODUCTION Page 8 1.3 ACCESSORIES CHAPTER 2 SPECIFICATIONS Page Page Page 13 3.1 GENERAL 3.2 PREPARATION FOR USE 3.3 INITIAL INSPECTIONS 14 3.4 RACK MOUNTING 15 3.5 LOCATION, MOUNTING AND COOLING 3.6 AC SOURCE REQUIREMENTS 3.7 AC INPUT POWER CONNECTION 16 3.8 TURN-ON CHECKOUT PROCEDURE Page 18 3.9 CONNECTING THE LOAD Page Page Page Page - - + + - - + + Page 25 WARNING OUTPUT TERMINAL GROUNDING 3.10 LOCAL AND REMOTE SENSING WARNING Page 27 CHAPTER 4 FRONT AND REAR PANEL CONTROLS AND CONNECTORS 4.1 INTRODUCTION 4.2 FRONT PANEL CONTROLS AND INDICATORS Page 29 4.3 REAR PANEL CONNECTIONS AND CONTROLS 30 4.4 REAR PANEL SW1 SETUP SWITCH Fig.4-3: SW1 setup DIP-switch 4.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR Page Page 34 CHAPTER 5 LOCAL OPERATION 5.1 INTRODUCTION 5.2 STANDARD OPERATION 35 5.3 OVER VOLTAGE PROTECTION (OVP) 36 5.4 UNDER VOLTAGE LIMIT (UVL) 5.5 FOLDBACK PROTECTION 5.6 OUTPUT ON/OFF CONTROL 5.7 OUTPUT SHUT-OFF (SO) CONTROL VIA REAR PANEL J1 CONNECTOR 37 5.8 ENABLE/DISABLE CONTROL VIA REAR PANEL J1 CONNECTOR 5.9 CV/CC SIGNAL 38 5.10 PS_OK SIGNAL 5.11 SAFE-START AND AUTO-RESTART MODES 5.12 OVER TEMPERATURE PROTECTON (OTP) 5.13 LAST SETTING MEMORY 39 5.14 SERIES OPERATION Page 41 5.15 PARALLEL OPERATION Page Page 44 5.16 DAISY-CHAIN CONNECTION 5.17 FRONT PANEL LOCKING Page 46 CHAPTER 6 REMOTE ANALOG PROGRAMMING 6.1 INTRODUCTION 6.2 LOCAL/REMOTE ANALOG INDICATION 6.3 LOCAL/REMOTE ANALOG INDICATION 47 6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND OUTPUT CURRENT LIMIT 48 6.5 RESISITIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT 49 6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT 50 CHAPTER 7 RS232 & RS485 REMOTE CONTROL 7.1 INTRODUCTION 7.2 CONFIGURATION 51 7.3 REAR PANEL RS232/RS485 CONNECTOR 52 7.4 MD MODE OPTION (Factory Installed) 8 PIN CONNECTOR 53 7.5 CONNECTING POWER SUPPLIES TO RS232 OR RS485 BUS Select the desired interface RS232 or RS485 using rear panel setup switch SW1-6 (Section 4-4). 7.5.1 Single power supply 1. DB-25 CONNECTOR 8 PIN CONNECTOR REMARKS 54 7.6 COMMUNICATION INTERFACE PROTOCOL 55 7.7 ERROR MESSAGES 7.8 COMMAND SET DESCRIPTION Page Page 58 7.9 GLOBAL OUTPUT COMMANDS 59 7.10 SINGLE BYTE COMMANDS Page Page Page 63 7.11 STATUS, ERROR AND SRQ REGISTERS Page 7.11.2 Conditional Registers (continued) Table 7-8: Fault Condition Register BIT Fault name Fault symbol Bit Set condition Bit Reset condition Table 7-9: Status Condition Register BIT Fault name Page Page 68 7.12 SERIAL COMMUNICATION TEST SET-UP 69 CHAPTER 8 ISOLATED ANALOG PROGRAMMING OPTION 8.1 INTRODUCTION 8.2 SPECIFICATIONS 70 8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR 71 8.4 SETUP AND OPERATING INSTRUCTIONS 72 CHAPTER 9 MAINTENANCE 9.1 INTRODUCTION 9.2 UNITS UNDER WARRANTY 9.3 PERIODIC MAINTENANCE 9.4 ADJUSTMENTS AND CALIBRATION Page 74 9.7 FUSE RATING