EAI 580 Console Manual — Chapter 8: Power Distribution
CHAPTER 8
POWER DISTRIBUTION
8.1 INTRODUCTION
This chapter describes both the ac and de power distribution system and the patch panel drive
system. The de voltages are generated by the 0. 10.0354 Power Supply described in Chapter 7
of this manual.
8.2 PRIMARY (AC) POWER DISTRIBUTION
The 580 Computer Console is designed to operate from either a 115 volt or 230 volt ac source.
Preparing the computer for operation from either source voltage is a matter of jumpering ter-
minals on terminal board TB1. As shown in Figure 8.1, jumpering terminals 1 and 3, 2 and
4, and 5 and 6 prepares the computer for 115 volt operation. Jumpering terminals 2 and 3 pre-
pares the computer for 230 volt operation.
The 580 contains two duplex convenience outlets which provide primary power voltage for any
peripheral equipment used with the computer. Convenience outlet AC2 is in parallel with the
ac input (Figure 8.1) and is hot when the computer is connected to a power source. Convenience
outlet AC3 is a switched outlet that provides power only when the computer is turned on, This
5
The voltage present at receptacles AC2 and
outlet is protected by fuse F2.
ACS3 is the same as the primary power voltage.
Do not connect 115 volt accessories to this
outlet if the computer is powered from a 230
volt ac source.
The switching circuit consists of an ON switch (S1-1) and an OFF switch (S1-2), a thermal pro-
tector switch (S2) and relay K1 (Figure 8.1). When the computer is connected to a source
voltage, terminal LI of relay K1 and pin 7 of the ON switch are connected to 115 volts ac and
terminal L3 and one input of the relay coil are connected to ac common. Depressing the ON
switch energizes K1 and 115 volts ac common is connected to TB1-1, TB1-3, and TB1-4 re-
spectively. Primary power for the power supply and the DVM is obtained from this terminal
CHAPTER 8
8-2
POWER DISTRIBUTION
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—20v
PART OF: 0.51,0365 GRD
ON-OFF DIS-ENG CARD
ae
Figure 8.1. Primary Power Distribution
Depressing the OF F switch causes the ON switch to open, the relay is de-energized and pri-
mary power is removed from TBI.
Chopper drive voltage for the chopper stabilized amplifiers in the computer, is provided by
output windings on transformer T1 located in the 0. 10.0354 Power Supply. This voltage is
distributed through the computer bus bar system.
8.3 PATCH PANEL DRIVE SYSTEM
The 580 Computer utilizes a patch panel drive system for installation and removal of the pre-
patch panel. For the purpose of this description, assume that the pre-patch panel is in the
engaged position as shown in Figure 8.2.
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CHAPTER 8
POWER DISTRIBUTION
+5V
, 39
8 5 --
mMs2 .
>——O (ENG)
L_4 (PP SW) oO
es)
et
(——°) oe
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—20V
3_SP_ 7,
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[0.51.0357 MODE cTRL_]
Figure 8.2. Patch Panel Drive System
Depressing the DIS pushbutton causes contacts 5 and 6 and 7 and 8 to close. When contacts 5
and6 close, pin 1 of relay K1 is grounded. Closing contacts 7 (SP) and 8 (+5 volts) forces the
SP mode high, connecting +5 volts through the SP bus to pin 4 of K1, energizing the relay.
Energizing K1 connects ac voltage to the motor and the patch panel starts the disengaging
cycle. In the engaged state, pins 6 and 7 of KI are also closed, allowing capacitor C1 to
charge to +30 volts.
removing the ground from the relay card and K1 is de-energized. In the de-energized state
As the end of the disengaging cycle approaches, microswitch MS1 opens
the 115 Vac voltage is removed from the motor and capacitor Cl discharges +30 volts through
the motor windings to ground. The +30 volts from C1 is used to dampen the motor and signif-
ically reduces any tendency for the patch panel to override.
Depressing the ENG pushbutton causes the drive system to operate in the same manner with
the exception that the patch panel is driven to the engaged position.
8-3
‘ibuted to all components of the computer
3 0062 OW in Chapter 1 of this manual
f this drawing also show small portions
2 sheets for detailed distribution infor-
*
APPENDIX 1
REPLACEABLE PARTS LISTS
This appendix contains Replaceable Parts Lists for the equipment described in this chapter. In
each case, a brief description of the part, the EAI part number and, where applicable, a refer-
ence symbol (schematic designation) is included. To enable a particular sheet to be readily lo-
cated, an index precedes the individual replaceable parts lists.
The category column indicates the availability of each part so that a replacement can be obtained
as quickly as possible.
Category "A" - The parts in category "A" are standard electronic items that are usually avail-
able from any commercial electronic supplier.
Category ''B''- The parts in category "B" are proprietary items that are available only from EAI.
If proprietary items are replaced with items ob-
tained from other sources, EAI cannot assume
responsibility for a unit not operating within its
published specifications.
ORDERING INFORMATION
To expedite your order for replacement parts the procedures below should be followed:
1. Specify the EAI part number and description of the part required. The model number and
serial number of the next higher assembly should also be included.
NOTE
EAI is currently revising the part numbering sys -
tem. All parts effected by this revision are iden-
tified using the new and the old number (the number
in parenthesis). All parts should be ordered using
the new number. The old number is provided to
cross reference parts that may still be identified
physically, or in other publications by that number.
2. When ordering complete assemblies (networks, printed circuit cards, etc.), specify the
model and serial numbers of the equipment the assembly is to be used with. If possible
include the purchase order number or the EAI project number of the original equipment
purchased.
?
When ordering expansion components, note if mounting hardware is required. If hard-
ware is needed, add to the purchase order the statement "INCLUDING MOUNTING HARD-
WARE".
NOTE THAT EAI RESERVES THE RIGHT TO MAKE PART
SUBSTITUTIONS WHEN REQUIRED, EAI GUARANTEES
THAT THESE SUBSTITUTIONS ARE ELECTRICALLY AND
PHYSICALLY COMPATIBLE WITH THE ORIGINAL COM-
PONENT.
8-5
of.
coe reer eee ecee
a
Pe ee ee
ee
(TEM ;
REF. DESIG. DESCRIPTION BALM. bh
1 |Ml-c1 Motor 00 594.0096-0 B
0.12.1658 DYNAMIC BRAKE
1 {cl Capacitor 00 516.0410-0 B
2 C2 Capacitor, Fixed, Paper: 00 520.0004-0 A
0.5 uf +10%, 600V
(Aerovox CP53B1EF504K or equal)
3 |cR1 Diode (ITT G-774 or equal) 00 614.0293-0 | A
4 |K1 Relay: 18 VDC, 520 ohms Coil, 4 Form C 00 618.0171-0 | A
Contacts (Allied Control T-154-4C-520
or equal)
5S jR1 Resistor, Fixed, Composition: 00 626.0101-0 | A
100 ohms +5%, 1/2W
(Allen-Bradley EB or equal)
6 |R2 Resistor, Fixed, Composition: 00 626.0220-0 A
22 ohms +5%, 1/2W
(Allen-Bradley EB or equal)
7 |XK1 Socket, Relay: 16 Contacts 00 650.0133-0 A
(Allied Control 30055-4 or equal) ;
IGNED TO INDICATE AVAILABILITY OF PARTS. JUNIT TITLE
— eel Sag eee BE Rumen sen EGSREE Ys
t cunpica Tas PARTS THAT SHOULD BE PURC MOTOR MOUNTING
MODEL NO.
: pate 10/11 » 67 0.51.0380 Sh. lof 1Sh.
: 8-7 -"
ine 446 d
ITEM] REF. DESIG.
DESCRIPTION
EAI NO, *CAT.
1 |DSs1
Lamp, Incandescent: 28V, 4 MA;
Clear, T1-3/4 Bulb
(Hudson 369 or equal)
Switch
00 578.0089-0 A
00 656.0178-2 B
1 |c1,2,3,4,7
2 |C5,6
0.12.1641 BUS BAR NETWORK CARD
Capacitor, Fixed, Electrolytic:
100 uf +20%, 20V
(Sprague 150D107x0020-S2 or equal)
Capacitor, Fixed, Electrolytic:
47 uf +20%, 35V
(Sprague 150D4760035-S2 or equal)
00 517.1107-3 | A
(00 516.0270-0)
00 517.1476-4 A
(00 516.0269-0)
fot CATEGORY COLUMN IS DESIGNED TO INDICATE AVAILABILITY OF PARTS.
A- INDICATES PARTS THAT SHOULD BE PURCHASED LOCALLY,
® -INDICA TES PARTS THAT SHOULD BE PURCHASED FROM EAI.
pate 10/ 117 67
UNIT TITLE
OFF-ON DISENGAGE=ENGAGE CARD
MODEL NO.
0.51.0365 Sh. 1 of 1 Sh.
47 uf +20%, 35V
(Sprague 150D4760035-S2 or equal)
(00 516.0269-0)
’ = EAI NO. *CAT. FI
00 578.0089-0 | A ,
00 656.0178-2 | B
Capacitor, Fixed, Electrolytic: 00 517.1107-3 | A
100 uf +20%, 20v (00 516.0270-0)
(Sprague 150D107X0020-S2 or equal)
|Capacitor, Fixed, Electrolytic: 00 517.1476-4 | A
at E
ON DISENGAGE-ENGAGE CARD
- NO.
Sh. 1 of 1 Sh.
oo.
Ty
bs DESCRIPTION RAVES
1 148,423,453, Connector, Receptacle: 22 Contacts; Female 00 542.0091-0 | A
B8 (Amphenol 143-022-01 or equal)
2 |AT-3 ,DvM-P2 Connector Module (00 542.1244-0 B |
3 |CP-J1,KB-32 Connector 00 542,.1258-0 B
KB=J11,KB-
512, KB-J14,
KB=315, KB-
J16
4 |Ps1-31 Connector Module 00 542.1243-0 B
5 Connector, Receptaci..;: 41 Contacts; Female - 00 542.1423-0 A
(Amp 3-582151-5 or equal)
6 Connector Housing: 16 Cavity 00 542.1430-0 A
(Amp 582140-2 or equal)
7 Connector: 22 Contacts 00 542.1560-0 A
(Cinch 251-15-30-160 or equal)
8
Switch, Push: SPST; N.0O.
(Grayhill 39-101 or equal)
00 656.0185-0 A
HE CATEGORY COLUMN IS DESIGNED TO INDICATE AVAILABILITY OF PARTS. [UNIT TITLE
eerErs & - INDICATES PARTS THAT SHOULD BE BUpEH ARE Egestty.
RTS THAT SHOULD BE PURCHA A ;
p -INDICATES PA wa J
MODEL NO,
4 pate 10, 11 /67 0.93.0062
necessary schematics and wiring diagrams of equipment deseribed in
cilitate locating a particular sheet, an index is provided that Hata the model
it or component, the type of drawings, and the associated drawing number,
ys are prepared in accordance with standard drafting practices for electro- mechani« ;
d electronic equipment, All symbols are in accordance with current government atand-
INDEX |
Uni or Component Type of Drawing Drawing Number |
j 0.12, 1658 Dynamic Brake Schematic BOO 012 1658 0S
> 0,51, 0865 OF F-ON and DIS-ENG Schematic C00 051 0365 08
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