Series Six PLC Datasheets Manual, GEK-25367E

Series Six PLC Datasheets Manual, GEK-25367E
SERIES SIX
GEK-83505B
PROGRAMMABLE CONTROLLERS
CPU/DPU POWER
SUPPLY MODULE
-.--
Source Voltage:
95 to 260 Vac
Output Voltages:
+5, +12,-12Vdc
-..
GENERAL DESCRIPTION
The CPU/DPU Power Supply module, utilized in both
the Central Processor Unit (CPU) and the Data Processor
Unit (DPU), is available to be used with a power source
from 95 to 260 Vac. The features and benefits of this
module are summarized in Table 1.
The module provides electromechanical relay contacts for
connection to user indicators, or any device to be activated during an alarm condition. The module also provides a
voltage regulator for an optional, auxiliary battery that
provides battery back-up of CMOS memory contained in
the processor rack.
The CPU/DPU Power Supply module provides regulated
+ 12, -12 and + 5 DC voltages to the rack backplane. The
input (or source voltage), which can range in frequency
from 47 Hz to 63 Hz, is applied to terminals on the front
panel, then routed through a line filter, switch, and fuse
to a switching power supply.
TABLE 1.
I
|
A Keyswitch mounted on the front panel is used to select
either the RUN or the STOP mode for the processor; a
second Keyswitch allows the user to protect the contents
of the processor memories by placing them in a READ
ONLY mode. The same key operates both Keyswitches.
Refer to Figure 1 (next page) for the CPU/DPU Power
Supply module specifications.
FEATURES AND BENEFITS
FEATURES
BENEFITS
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Available in one version to include both 115 chV
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230 Vac applications:
Can be utilized in CPU and DPU racks
Compatible with variety of power sources
I
Provides electromechanical-relay contacts for alarm
indications
Contains voltage regulator for auxiliary battery
I
Reduced spare-parts inventory
I
Activates user-supplied power indicators
I
External battery back-up of CMOS memory
I
1
CPU/DPU Power Supply Module
GEK-83505
INSTALLATION
These steps define the procedures to be followed when a
power supply is to be replaced on a Series Six CPU or
DPU rack. The tools needed are a regular screwdriver,
Phillips screwdriver, and a 5/16” wrench or nut driver.
1. Stop the system by switching the top key on the
CPU to “STOP“.
2. Switch off all units in the system, including the
user’s power supplies.
3. Remove all power from the system, preferably at
the source (i.e. throw the main circuit breaker for
the system).
4. Locate the power supply to be changed. The power
supply is in the far right side of the CPU/DPU rack.
5. Remove the plastic cover on the lower portion of
the power supply and, using a volt-meter, make
sure there is no AC power present.
6. Take note of the location and color of the AC wires
and then remove them, Also, remove Auxiliary
battery and/or Alarm connection(s) .
7. At the top and bottom of the power supply, there
are 1/4 turn thumbscrews. To loosen, turn the
thumbscrews
approximately l/4 t u r n
counterclockwise.
8. Grasp the thumbscrews and gently pull outward.
Be careful not to damage the internal wiring while
pulling the supply out.
9. Locate the wires that extend from the back of the
rack to the terminal on the power supply. These
wires should be labeled or stamped with their
location; the circuit boards have wire locations
stamped on them also. (Refer to Table 3.) Remove
these wires. There is also a plastic wire clamp holding these wires in place. Detach this from the
frame if there is not a similar item on the replacement power supply, or cut the clamp if there is one
on the new supply.
Remove the 18-pin (PI) molex connector that is
on the narrow board in the front part of the power
supply. The power supply should now be completely detached from the rack.
10. Take the replacement power supply and attach the
wires as shown in Figure 3. Be sure to connect the
18-pin molex connector (P1) to the power supply.
Attach the wire clamp on the upper stud of the
power supply frame, or if there is a clamp already
there, wrap the wires in it.
11. Slide the power supply into the rack, being careful
not to damage the wires. When the power supply is
all the way in, turn the thumbscrews clockwise
until they lock in.
12. Remove the plastic cover on the lower portion of
the power supply and attach the AC wires as they
were on the original supply (Refer to Step 6). Replace the plastic cover.
13. Restore system power. Turn on the CPU/DPU
unit. Check to see if the POWER light is on. If it is,
turn on the rest of the system and resume normal
operation.
14. If the POWER Iight does not come on, the power
supply is bad or there are other problems within
the rack. When this occurs, you can call the Programmable Control Service Center EMERGENCY
S E R V I C E N U M B E R (804) 9 7 8 - 5 7 4 7 f o r
assistance.
FIGURE 3. POWER SUPPLY EXTERNAL WIRING DIAGRAM
Ref. PC-83-S&01
18
CPU/DPU Power Supply Module
GEK-83505
If a memory auxiliary battery is used,
the circuit connecting it to this module
should be isolated from the rest of the
system. If this CAUTION is not
observed,
the battery could be
short-circuited.
The user devices connected to each set
of Alarm terminals on this module
should present a resistive load drawing
no more than one amp of current at no
greater than 115 Vac/28 Vdc. Failure
to observe this CAUTION may result
in damage to the circuit board.
The alarm contacts consist of two sets
o f n o r m a l l y - o p e n e d a n d normallyclosed contacts. The terminals
marked “1 NO” and “1 NC” are associated with Alarm Type No. 1; the
terminals marked “2 NO” and “2
NC” with Alarm type No. 2. (Refer to
Installation and Maintenance
Manual, GEK-25361 for further information on Alarm Nos. 1 and 2.)
NOTE
During normal operation the alarm
relays are energized. During an alarm
condition the contacts marked 1NO
a n d 2N0, o p e n , and those marked
1NC and 2NC, close.
AUXILIARY
BATTERY
IN0
ALARM
RELAY
CONTACTS
\\SO\_ AT ED’)
INC
COM
LINE 1 IL1 1
2N0
LINE 2 (L2)
2NC
GROUND (G)
FIGURE 4.
FRONT-PANEL TERMINAL BLOCK
i
I
ORDERING
AC
INPUT
LlNE
INFORMATION
Module
Power Supply Module
95 to 260 Vac
IC600PM500B
CATALOG NUMBER REVISION SUFFIX
The equipment listed above having the catalog numbers shown and the same equipment
having a higher alpha suffix is designed for listing by UL for use as auxiliary control devices.
The equipment is a direct replacement for equipment having the same catalog number but a
lower alpha suffix.
The UL symbol on the nameplate means the product is listed by Underwriters Laboratories Inc. (UL Standard No. 508, Industrial Control Equipment, subsection Electronic
Power Conversion Equipment.)
For further information, contact your local GE Fanuc sales office.
GE Fanuc Automation North America, Inc., Charlottesviile, Virginia
JANUARY, 1984
Ref.
PC-S&83-0119
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