KEPCO®
THE POWER SUPPLIER™
INSTRUCTION MANUAL
CA 400
RACK ADAPTER
RACK ADAPTER FOR MST SERIES POWER MODULES
KEPCO INC.
An ISO 9001 Company.
RACK ADAPTER
ORDER NO. REV. NO.
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 numbers. 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 Documentation Office in New York, (718) 461-7000, requesting the correct revision for your particular 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.
MODEL
CA 400
©1997, KEPCO, INC
243-0924
KEPCO, INC. l 131-38 SANFORD AVENUE l FLUSHING, NY. 11352 U.S.A. l TEL (718) 461-7000 l FAX (718) 767-1102
email: hq@kepcopower.com l World Wide Web: http://www.kepcopower.com
Declaration of Conformity
Application of Council directives:
Standard to which Conformity is declared:
EN61010-1:2001 (Safety requirements for electrical equipment for measurement,
control and laboratory use - Part 1)
Manufacturer's Name and Address:
Importer's Name and Address:
Type of Equi pme nt:
Model No.:
73/23/EEC (LVD)
93/68/EEC (CE mark)
KEPCO INC.
131-38 SANFORD AVENUE
FLUSHING, N.Y. 11352 USA
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Rack Adapter
[PRODUCT MODEL NUMBER]
Y
Year of Manufacture:
I, the undersigned, declare that the product specified above, when used in conjunction with the conditions of conformance set forth in the product instruction manual, complies with the requirements of the
Low Voltage Directive 73/23/EEC, which forms the basis for application of the CE Mark to this product.
Place: KEPCO, Inc.
131-38 Sanford Ave.
Flushing, N.Y.11352 USA
Saul Kupferberg
(Full Name)
Date:
228-1358 RA (61010) 052704
VP OF SALES
(position)
A
Conditions of Conformance
Rack Adapter products (EN61010-1)
When this product is used in applications governed by the requirements of the EEC, the following restrictions and conditions apply:
1. For European applications, requiring compliance to the Low Voltage Directive, 73/23/EEC, this Rack
Adapter is considered a component, designed for “built in” applications. Because it is incomplete in
construction, the end product enclosure must provide for compliance to any remaining electrical safety
requirements and act as a fire enclosure. (EN61010-1:2001, Cl. 6, Cl. 7, Cl.8, and Cl. 9)
2. This Rack Adapter is designed for stationary installation, with mains power applied via a detachable
power supply cord or via direct wirin g to the source powe r term inal bloc k.
3. This Rack Adapter, when properly installed, is considered a Class 1 (earthed) product. It is intended for
use as part of equipment meant for test, measurement and laboratory use, and is designed to operate
from single phase, three wire power systems. This equipment must be installed within a suitably
wired equipment rack, utilizing a three wire (grounded) mains connection. See wiring section of this
manual for complete electrical wiring instructions. (EN61010-1:2001, Cl.6.10.1)
4. This power supply has secondary output circuits that are considered hazardous, and which exceed
240 VA at a potential of 2V or more.
5. The output wiring terminals of this power supply has not been evaluated for field wiring and, therefore,
must be properly configured by the end product manufacturer prior to use.
6. For complete circuit protection of the end product, as well as the building wiring, it is required that a primary circuit protection device be fitted to the branch circuit wiring. (EN61010-1:2001 Cl. 9.5)
7. When installed with other components and/or power supplies, hazardous voltages may be present
within during normal operation. All operator adjustments are made via externally accessible switches,
controls and signal lines as specified within the individual power supply operating instructions. There
are no user or operator serviceable parts within this product enclosure. Refer all servicing to qualified
and trained Kepco service technicians.
B 228-1362 COND/CONFORM 052704
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - DESCRIPTION
1.1 General.................................................................................................................................................... 1
1.2 Electrical.................................................................................................................................................. 2
1.3 Mechanical .............................................................................................................................................. 2
1.4 Accessories ............................................................................................................................................. 2
SECTION 2 - CONFIGURING THE CA 400 RACK ADAPTER
2.1 Input Power ............................................................................................................................................. 6
2.1.1 General.................................................................................................................................................... 6
2.1.2 Safety Grounding .................................................................................................................................... 6
2.1.3 Source Power Connections..................................................................................................................... 6
2.2 Load Connections ................................................................................................................................... 7
2.3 Control Signal Connections ..................................................................................................................... 7
2.4 Slot 1 Configuration................................................................................................................................. 7
LIST OF FIGURES
FIGURE TITLE PAGE
1 Kepco Model CA 400 Rack Adapter ........................................................................................................... 1
2 CA 400 Backplate Assembly....................................................................................................................... 2
3 Controller to Power Module Interface ......................................................................................................... 3
4 CA 400 Interconnections and Input/Output Pin Connections...................................................................... 4
5 Mechanical Outline Drawing of the CA 400 Rack Adapter.......................................................................... 5
6 Load Connector Assembly Procedure ........................................................................................................ 8
LIST OF TABLES
TABLE TITLE PAGE
1 Accessories .................................................................................................................................................3
CA 400 060700
i/(ii Blank)
1.1 GENERAL
The Kepco Model CA 400 Rack Adapter (Figure 1) is designed for the installation of Kepco MST
Series Power Supplies into a non-standard width rack. Each rack adapter can accommodate a
maximum of five power supplies, or four power supplies and a communication bus controller
(Kepco Model MST 488-27) installed in slot 1. The CA 400 has a removable plate at the rear of
slot 1 to allow for the controller connector.
SECTION 1 - DESCRIPTION
3041591
CA 400 060700
FIGURE 1. KEPCO MODEL CA 400 RACK ADAPTER
1
1.2 ELECTRICAL
The rack adapter contains a PCB backplane whose connectors mate with the MST Power
Module plug-in connectors to facilitate rapid installation of the power modules. The a-c input
terminal blocks (J6) on the backplate assembly (Figure 2) distributes input power to five PCBmounted a-c input/control bus power connectors (P1 - P5) as shown in Figure 4. Two-wire
IEEE 1118 control bus data is supplied to the five a-c input/control bus power supply connectors via two 9-pin connectors (six pins are not used), J7 and J8 on the backplate assembly.
The utilized pins of the two IEEE 1118 control bus connectors are paralleled, facilitating "daisy
chain" control bus configurations. A shield connection is routed to connector P1 for grounding
within the controller when a controller is installed; otherwise this connection is not used.
The d-c output connectors of the MST power supplies installed in the rack adapter are accessed
via connector extenders (J1 - J5) mounted on the backplate assembly.
1.3 MECHANICAL
The rack adapter is pre-drilled to accept chassis slides. It is equipped with four metal foot
attachments; mounting ears and rack adapter handles are available as accessories (see Table
1). The rack adapter can use 18-inch (457.2 mm) Jonathon Model 110-QD-18-2 chassis slides.
The rack adapter can be equipped with optional 1/5 rack blank filler panels (Kepco Model RFP
55-1) if the full complement of five power supplies is not utilized.
Mechanical dimensions, material, and finish of the Kepco Model CA 400 Rack Adapter are provided in Figure 5.
1.4 ACCESSORIES
Table 1 lists the accessories provided with the CA 400 Rack Adapter. A controller and up to 27
MST, MAT or MBT Power Modules can be connected in a daisy chain configuration as shown in
Figure 3. The last power module control bus outlet (in the daisy chain) must be terminated with
an IEEE1118 Control Bus Terminator supplied with the Rack Adapter; even if only one Rack
2
FIGURE 2. CA 400 BACKPLATE ASSEMBLY
1448
CA 400 060700
Adapter is used (for one rack, use either connector J7 or J8). Note that IEEE 1118 requires a
daisy chain configuration only; other configurations (e.g., star) are not supported by Kepco.
FIGURE 3. CONTROLLER TO POWER MODULE INTERFACE
TABLE 1. ACCESSORIES
ITEM PART NO. QUANTITY SUPPLIED
Connector Shell Kepco - 142-0372
(Positronic Industries - MS112N)
Contact, 12 Gauge Kepco - 107-0327
(Positronic Industries - PLB06M0050)
Cable (BIT bus, 2 meters long, with two 9pin DSUB connectors)
Terminator, IEEE1118 Control Bus Kepco - 195-0086 1
3041592
CA 400 060700
Kepco - 118-0844
5
36
1
3
TABLE 1. ACCESSORIES (CONTINUED)
ITEM PART NO. QUANTITY SUPPLIED
Chassis Slide Kepco 108-0249
Mounting Ear Bracket 128-1791 (Not supplied, 2 required per rack adapter)
Screw (mounting ear bracket to chassis) 101-0407 (6-32 x 3/16 St., FLPO) (Not supplied, 2 required per ear bracket)
Handle 139-0229 (Not supplied, 1 required per ear bracket)
Ferrule 170-0001 (Not supplied, 2 required per handle)
Screw (Handle to mounting ear bracket) 101-0396 (10-32 x 1/2 St., FLPO) (Not supplied, 2 required per handle)
Screw (Secure MST modules to chassis
for transportation purposes)
(Jonathan 110-QD-18-2)
101-0406 (8-32 x 5/8 St. RHPH,
Thread cutting Type 23)
(Not supplied, 2 required per MST module)
(Not supplied)
FIGURE 4. CA 400 INTERCONNECTIONS AND INPUT/OUTPUT PIN CONNECTIONS
3041593
4
CA 400 060700
B3010186
CA 400 060700
FIGURE 5. MECHANICAL OUTLINE DRAWING OF THE CA 400 RACK ADAPTER
5
SECTION 2 - CONFIGURING THE CA 400 RACK ADAPTER
THE RACK ADAPTER SHOULD BE MOUNTED AND FASTENED SECURELY TO RACK
BEFORE INSTALLING POWER SUPPLIES TO AVOID DISTORTION OF THE RACK
ADAPTER. ( INSTALL POPULATED RACK ADAPTER ONLY IF BOTTOM OF RACK
ADAPTER IS FULLY SUPPORTED.) FAILURE TO OBSERVE THIS CAUTION MAY RESULT
IN MISALIGNMENT OF THE POWER SUPPLIES WITH THE RACK ADAPTER.
NOTES:1.Prior to installation of MST Power Modules, remove the plate installed in slot 3 (see
Figure 1) for support during shipping.
2. If Rack Adapter is received with MST Power Modules already installed, each Power
Module is secured to the Rack Adapter with two shipping screws. These screws are
accessible from the bottom of the Rack Adapter, and must be removed before installing
the Rack Adapter, otherwise the MST Power modules cannot be removed from the
Rack Adapter.
2.1 INPUT POWER
2.1.1 GENERAL
Interconnections between an a-c power source and a stabilized power supply, and between the
power supply and its load, are as critical as the interface between other types of electronic
equipment. If optimum performance is expected, certain rules for the interconnection of input
power source, power supply and load must be observed by the user. These rules are described
in detail in the following paragraphs. All interconnections are accomplished at the backplate
assembly (Figure 2). Refer to Figure 3 for CA 400 interconnections and input/output connector
pin assignments.
CAUTION
2.1.2 SAFETY GROUNDING
National and international safety rules dictate the grounding of the metal cover and case of any
instrument connected to the a-c power source. The instructions below suggest wiring methods
which comply with these safety requirements; however, in the event that the specific installation
for the power system involves differences with the recommended wiring, it is the customers
responsibility to ensure that all local electrical codes for safety grounding are met.
2.1.3 SOURCE POWER CONNECTIONS
THE CA 400 DOES NOT INCORPORATE ANY SAFETY INTERRUPT DEVICES. PROTECTION OF INPUT WIRING REQUIRES USER-CONFIGURED SAFETY INTERRUPTS.
The backplate assembly of the CA 400 includes a 3-terminal terminal block (J6) to allow for the
connection of single-phase source power. The connector positions are labeled L, N, and G.
Their functions are as follows:
Terminal G (Ground)
•
is the safety ground connection for the CA 400, is connected to
the CA 400 chassis and to the safety ground terminal of the input power connector for
each of the five mounting positions via the PCB backplane. Terminal G must be con-
CAUTION
6
CA 400 060700
nected to safety ground in order to ensure proper grounding of the MST power supplies
and MST 488-27 Controller (when installed).
Terminals L (Line Phase) and N (Neutral)
•
nectors. J6 provides a-c power to connectors P1 through P5.
The following standard wiring configuration is recommended by Kepco as being compliant with
applicable national and international safety standards. Please consult local electrical codes for
wire current ratings and other specific requirements:
• Connect Terminal G of the CA 400 input power terminal block (J6) to safety ground
• Connect a wire pair from input power to the L/N terminal pair of the input power terminal
block (J6).
• Wire size is determined by the maximum rated source current for each MST power supply and the number of MST modules installed. Operation below 100V rms can result in
source current in excess of 15A at terminal block J6. For this reason Kepco recommends use of #14 AWG wire (minimum) in fully populated systems. For lower system
power configurations, smaller wire can be used; contact Kepco Applications Engineering
for assistance.
2.2 LOAD CONNECTIONS
Load connections to the CA 400 are achieved via the five individual connectors (J1 - J5) located
on the backplate assembly directly behind each mounting position (see Figures 2 and 4). Mating
connectors (assembly required) are supplied (see Figure 6).
are connected to the input power entry con-
REGARDLESS OF OUTPUT CONFIGURATION, OUTPUT SENSE LINES OF
MST POWER SUPPLIES MUST BE PROPERLY CONNECTED FOR OPERATION (REFER TO MST INSTRUCTION MANUAL).
2.3 CONTROL SIGNAL CONNECTIONS
Access to the IEEE 1118 communication control bus for each power supply is provided via two
9-pin D-subminiature type connectors (J7 and J8) on the backplate assembly (see Figures 2
and 4). Two pins of each connector are used for the 2-wire control bus; the third pin is utilized
when a controller is installed in slot 1, allowing the shield to be grounded within the controller.
2.4 SLOT 1 CONFIGURATION
The unit is shipped with slot 1 configured to accept an MST power supply. To install a controller
in slot 1, remove J1 connector plate by removing four screws at the backplate assembly (see
Figure 2).
NOTE: Before installing MST Power Module in CA 400 Rack Adapter, pull out the two captive
thumb screws at the front of the Power Module and turn counterclockwise until the
threads engage.
NOTE
CA 400 060700
7
FIGURE 6. LOAD CONNECTOR ASSEMBLY PROCEDURE
3040762
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CA 400 060700
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