KEPCO RA 19-4C User manual

IMPORTANT NOTES:
1) This manual is valid for the following Model and associated serial numbers:
MODEL SERIAL NO. REV. NO.
2) A Change Page may be included at the end of the manual. All applicable changes and
revision number changes are documented with reference to the equipment serial num-
bers. Before using this Instruction Manual, check your equipment serial number to identify
your model. If in doubt, contact your nearest Kepco Representative, or the Kepco Docu-
mentation Office in New York, [phone], requesting the correct revision for your par-
ticular model and serial number.
3) The contents of this manual are protected by copyright. Reproduction of any part can be
made only with the specific written permission of Kepco, Inc.
Data subject to change without notice.
KEPCO®
THE POWER SUPPLIER™
MODEL
INSTRUCTION MANUAL
ORDER NO. REV. NO.
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL [phone] FAX [phone]
email: [e-mail] World Wide Web: http://www.kepcopower.com
KEPCO INC.
An ISO 9001 Company.
©2018, KEPCO, INC
P/N 243-1134-R5
RA 19-4C
RACK ADAPTER
HOT SWAP RACK ADAPTER FOR
HSF 300W, 600W, 1200W, 1500W SERIES POWER SUPPLIES
RA 19-4C
RACK ADAPTER

RA 19-4C 120318 i
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - INTRODUCTION
1.1 Scope of Manual ..................................................................................................................................... 1-1
1.2 General Description................................................................................................................................. 1-1
1.3 Electrical.................................................................................................................................................. 1-1
1.4 Mechanical.............................................................................................................................................. 1-3
1.5 Accessories............................................................................................................................................. 1-3
1.6 Options.................................................................................................................................................... 1-3
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection....................................................................................................................... 2-1
2.2 Configuring the Rack Adapter................................................................................................................. 2-1
2.3 Rack Adapter Keying Instructions ........................................................................................................... 2-1
2.3.1 Establishing Key Positions................................................................................................................. 2-2
2.4 Slot Configuration.................................................................................................................................... 2-2
2.4.1 Independent Operation...................................................................................................................... 2-3
2.4.1.1 Using one power supply to control Multiple Power Supplies ....................................................... 2-3
2.4.1.2 Sense Connections for Independent Operation (HSF 300W and 600W Modules Only) ............. 2-4
2.4.1.2.1 Independent Operation - Local Sensing Using Internal DIP switches .......................................2-5
2.4.1.2.2 Independent Operation - Local Sensing Using External Wiring.................................................2-6
2.4.1.2.3 Independent Operation - Remote Sensing ................................................................................2-7
2.4.2 Parallel Operation.............................................................................................................................. 2-8
2.4.2.1 Individual Control......................................................................................................................... 2-9
2.4.2.2 Group Control .............................................................................................................................. 2-11
2.4.2.3 Parallel, Master Selected by User, supplying balanced current to a single load ......................... 2-11
2.4.2.4 Current Balancing........................................................................................................................ 2-14
2.4.2.5 Sense Connections for Parallel Configurations (HSF 300W and 600W Modules Only).............. 2-14
2.4.2.5.1 Parallel Configuration Using DIP Switches to Connect Sense Lines in Parallel........................2-15
2.4.2.5.2 Parallel Configurations using External Wires to Connect Sense Lines
in Parallel (HSF 300W and 600W Only)..................................................................................2-17
2.4.3 Series Connection ............................................................................................................................. 2-19
2.5 Alarm Configurations............................................................................................................................... 2-21
2.5.1 N.O. Alarm Line (Close on Failure).................................................................................................... 2-21
2.5.1.1 Close on Failure Using Rear Panel Dip Switches........................................................................ 2-21
2.5.1.2 Close on Failure Using External Wiring at I/O Mating Connector................................................ 2-24
2.5.1.3 Close on Failure Using External Wiring at Alarm I/O Terminal Block.......................................... 2-25
2.5.2 N.C. Alarm Line (Open on Failure).................................................................................................... 2-25
2.5.2.1 Open on Failure Using Rear Panel Dip Switches........................................................................ 2-26
2.5.2.2 Open on Failure Using External Wiring of I/O Mating Connector ................................................ 2-28
2.5.2.3 Open on Failure Using External Wiring of I/O Alarm Terminal Blocks......................................... 2-29
2.6 Terminations............................................................................................................................................ 2-29
2.7 Cooling.................................................................................................................................................... 2-29
2.8 Installation............................................................................................................................................... 2-30
2.8.1 Installing Optional Protective Cover................................................................................................... 2-30
2.8.2 Installing Optional Bus Bar. ............................................................................................................... 2-30
2.8.3 Installing Optional Locking Bracket.................................................................................................... 2-32
2.9 Installing HSF Power Supplies................................................................................................................ 2-33
2.10 Removing HSF Power Supplies.............................................................................................................. 2-33
2.11 Wiring Instructions................................................................................................................................... 2-33
2.11.1 Safety Grounding............................................................................................................................... 2-34
2.11.2 Source Power Connections............................................................................................................... 2-34
2.11.2.1 EMI Compliance........................................................................................................................... 2-35
2.11.3 Control Signal Connections............................................................................................................... 2-35
2.11.4 Output Load Connections.................................................................................................................. 2-35
2.11.4.1 Reducing Ripple and Noise ......................................................................................................... 2-35
2.11.4.2 Parallel/Redundant Operation...................................................................................................... 2-36

ii RA 19-4C 120318
TABLE OF CONTENTS
SECTION PAGE
2.11.4.3 Series/Independent Operation.................................................................................................... 2-36
2.11.4.4 Mixed Operation.......................................................................................................................... 2-36
2.12 Removing/Replacing HSF Power Supplies ............................................................................................ 2-36
2.13 Shipping.................................................................................................................................................. 2-36

LIST OF FIGURES
FIGURE TITLE PAGE
RA 19-4C 120318 iii
1-1 RA 19-4C Rack Adapter ............................................................................................................................... vi
1-2 RA 19-4C Rack Adapter with 300W, 600W, 1200W or 1500W HSF Power Supplies Installed.................. 1-1
1-3 RA 19-4C Rear Panel Interconnections...................................................................................................... 1-2
1-4 RA 19-4C Rack Adapter Rear Panel .......................................................................................................... 1-3
1-5 RA 19-4C Schematic Diagram.................................................................................................................... 1-7
1-6 RA 19-4C Mechanical Outline Dimensions................................................................................................. 1-9
2-1 RA 19-4C Rack Adapter Keying ................................................................................................................. 2-2
2-2 Controlling Multiple Power Supplies, Multiple Loads .................................................................................. 2-4
2-3 Independent Operation, Local Sensing for PS1 and PS2 using
Internal DIP switches, Simplified Diagram .............................................................................................. 2-5
2-4 Independent Operation, Local Sensing for PS1 and PS2 using
External Wiring, Simplified Diagram........................................................................................................ 2-6
2-5 Independent Operation, Remote Sensing for PS1 and PS2 using
External Wiring at I/O Mating Connector or Euroblock, Simplified Diagram ........................................... 2-7
2-6 Parallel Connection, Individual Control, Master-Slave,
Single Load, Master Determined by Highest Output Voltage.................................................................. 2-10
2-7 Parallel, Master-Slave, Single Load, HSF DIP Switches Define Master and
Voltage Control, RV, COM and CB lines Paralleled by Rack Adapter DIP Switches............................... 2-12
2-8 Master-Slave, Single Load, HSF DIP Switches Define Master and Voltage
Control, RV, COM and CB lines Paralleled by External Wiring at I/O Connector .................................... 2-13
2-9 Typical Parallel Connections Using External Wires for Local/Remote
Sensing and DIP switches to parallel sense wires (HSF 300W and 600W only)..................................... 2-16
2-10 Typical Parallel Connections using External Wires for Local/Remote
Sensing and I/O Mating Connector Jumpers to Parallel sense wires (HSF 300W and 600W Only)........ 2-18
2-11 Series Connection....................................................................................................................................... 2-20
2-12 Typical Close on Failure Alarm Configuration Using Rear Panel Dip Switches
with Output from I/O Mating Connector, Simplified Diagram................................................................... 2-22
2-13 Typical Close on Failure Alarm Configuration Using Rear Panel Dip
Switches, with Output from Alarm I/O Terminal Blocks, Simplified Diagram........................................... 2-23
2-14 Close on Failure Alarm Configuration Using External Wiring at
I/O Mating Connector, Simplified Diagram............................................................................................... 2-24
2-15 Close on Failure Alarm Configuration Using External Wiring at
Alarm I/O Terminal Block, Simplified Diagram......................................................................................... 2-25
2-16 Typical Open on Failure Alarm Configuration Using Rear Panel Dip Switches
with Output from I/O Mating Connector, Simplified Diagram.................................................................... 2-26
2-17 Typical Open on Failure Alarm Configuration Using Rear Panel Dip Switches
with Output from Alarm I/O Terminal Blocks, Simplified Diagram........................................................... 2-27
2-18 Open on Failure Alarm Configuration Using External Wiring
at I/O Mating Connector, Simplified Diagram........................................................................................... 2-28
2-19 Open on Failure Alarm Configuration Using External Wiring
at I/O Alarm Terminal Blocks, Simplified Diagram ................................................................................... 2-29
2-20 Optional Protective Cover or pARALLEL Bus Bar Installation.................................................................... 2-31
2-21 Series Bus Bar Installation.......................................................................................................................... 2-31
2-22 Optional Locking Bracket Installation.......................................................................................................... 2-32
2-23 Ripple and Noise Measurement Setup Diagram......................................................................................... 2-37

iv RA 19-4C 120318
LIST OF TABLES
TABLE TITLE PAGE
1-1 Compatible HSF Power Supplies ...............................................................................................................1-4
1-2 RA 19-4C Accessories ...............................................................................................................................1-4
2-1 Equipment Supplied ...................................................................................................................................2-1
2-2 Rear Panel DIP Switch Functions ..............................................................................................................2-2
2-3 HSF DIP Switch Configuration for Group Control (allows Master to control Output WHILE Slaves Track Master)
2-11
2-4 HSF DIP Switch Configuration for Voltage Control of Multiple Units in Series ...........................................2-19

vi RA 19-4C 120318
FIGURE 1-1. RA 19-4C RACK ADAPTER
3042843
SLOT4
SLOT3
SLOT2
SLOT1

RA 19-4C 120318 1-1
SECTION 1 - INTRODUCTION
1.1 SCOPE OF MANUAL
This manual contains instructions for the installation and operation of the RA 19-4C plug-in rack
adapter (Figure 1-1) used with 300W, 600W, 1200W and 1500W HSF power supplies, manufac-
tured by Kepco, Inc., Flushing, New York, U.S.A.
FIGURE 1-1.
1.2 GENERAL DESCRIPTION
Kepco RA 19-4C rack adapters are specifically designed for the installation of Kepco 300W,
600W, 1200W and 1500W HSF Power Supplies into 19-inch EIA-RS-310D standard equipment
racks. The RA 19-4C Model accommodates up to four 300W, 600W, 1200W or 1500W HSF
power supplies (Figure 1-2).
The rack adapter is user-configurable for parallel, series, or independent power supply opera-
tion. Up to four identical units may connected in parallel. Multiple rack adapters may be paral-
leled for additional current capacity. Forced current sharing and OR’ing diodes for N+1
redundancy are built into the HSF power supplies. Redundant a-c inputs are provided to deliver
independent source power to each power supply in a redundant pair. User-configurable keying
ensures that only the correct power supply can be installed in a keyed slot.
FIGURE 1-2. RA 19-4C RACK ADAPTER WITH 300W, 600W, 1200W OR 1500W HSF POWER SUPPLIES
INSTALLED
1.3 ELECTRICAL
An internal PCB back plate mounts connectors which interface directly with the power and sig-
nal connectors of 300W, 600W, 1200W and 1500W HSF power supplies, permitting hot swap-
pable insertion and extraction. The other side of the back plate assembly, available from the
rear, contains the fixed power and signal connections. Figure 1-3 shows RA 19-4C Rack
Adapter interconnections as well as details of the connectors and DIP switches located on the
rear panel (see Figure 1-4). Dual input terminal blocks on the rear panel (Figure 1-4) distribute
input power to each of the four power supplies. Figure 1-5 is a schematic diagram of the RA 19-
4C Rack Adapter.
All mechanical specifications are contained in the mechanical outline drawing, Figure 1-6.
3042844
PS1 PS2 PS3 PS4

1-2 RA 19-4C 120318
FIGURE 1-3. RA 19-4C REAR PANEL INTERCONNECTIONS