MANUFACTURER DATA SHEET
Power Supply
Manufacturer:
Allen-Bradley/Rockwell
Model Number:
1746-P1
See www.geomartin.com for additional PDF datasheets
Martin Part Number:
VendorPartNumber:
E-014624-01 AB # 1746-P1, Power Supply
PDF File: Doc_000005_Cover.pdf
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SLC 500™ Power Supplies
(Catalog Numbers 1746-P1, 1746-P2, 1746-P3,
1746-P4, 1746-P5, 1746-P6, and 1746-P7)
Installation Instructions
Inside…
page
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Genéralités . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Deutscher Abschnitt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Istruzioni per l’installazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Instrucciones de instalación . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Publication 1746-IN004A-ML-P
2
SLC 500™ Power Supplies
Important User Information
Because of the variety of uses for the products described in this publication, those
responsible for the application and use of this control equipment must satisfy
themselves that all necessary steps have been taken to assure that each
application and use meets all performance and safety requirements, including any
applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this
guide are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation, AllenBradley does not assume responsibility or liability (to include intellectual
property liability) for actual use based upon the examples shown in this
publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,
Installation, and Maintenance of Solid-State Control (available from your local
Allen-Bradley office), describes some important differences between solid-state
equipment and electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or in part,
without written permission of Allen-Bradley Company, Inc., is prohibited.
Throughout these installation instructions we use notes to make you aware of
safety considerations:
!
ATTENTION: Identifies information about practices or
circumstances that can lead to personal injury or death, property
damage or economic loss.
Attention statements help you to:
• identify a hazard
• avoid the hazard
• recognize the consequences
Important: Identifies information that is critical for successful application and
understanding of the product.
Publication 1746-IN004A-ML-P
English Section
SLC 500™ Power Supplies
(Catalog Numbers 1746-P1, 1746-P2, 1746-P3,
1746-P4, 1746-P5, 1746-P6, and 1746-P7)
Overview
Install your power supply using these installation instructions. The only tools
you require are Flat head (1/8”) and Phillips head (1/4”, #2) screwdrivers.
!
ATTENTION: Electrostatic discharge can damage integrated
circuits or semiconductors if you touch backplane connector pins.
Follow these guidelines when you handle the power supplies.
• Touch a grounded object to discharge static potential.
• Do not touch the backplane connector or connector pins.
• Do not touch circuit components inside the power supply.
• If available, use a static-safe work station.
• When not in use, keep the power supplies in their static-shield
packaging.
1746-IN004A-ML-P
4
SLC 500™ Power Supplies
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or
non-hazardous locations only. The following WARNING statement applies to use
in hazardous locations.
WARNING: EXPLOSION HAZARD
• Substitution of components may impair suitability for Class I,
Division 2.
• Do not replace components or disconnect equipment unless
power has been switched off or the area is known to be nonhazardous.
• Do not connect or disconnect components unless power has
been switched off or the area is known to be non-hazardous.
• All wiring must comply with N.E.C. article 501-4(b).
Environnements Dangereux
Cet équipement est conçu pour être utilisé dans des environnements de Classe I,
Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante
s’applique à une utilisation dans des environnements dangereux.
AVERTISSEMENT: DANGER D’EXPLOSION
• La substitution de composants peut rendre cet équipement
impropre à une utilisation en environnement de Classe I,
Division 2.
• Ne pas remplacer de composants ou déconnecter
l'équipement sans s'être assuré que l'alimentation est coupée.
• Ne pas connecter ou déconnecter des composants sans s'être
assuré que l'alimentation est coupée.
1746-IN004A-ML-P
SLC 500™ Power Supplies
5
Install the Chassis Interconnect Cable (Optional)
To connect up to three SLC 500™ chassis together, install the chassis
interconnect cable before installing the power supply
.
SLC 500 chassis/A
For more information, see the
SLC 500 Modular Style
Installation and Operation
Manual (publication 1747-6.2).
Power Supply Installation
1. Align the circuit board of the power supply with the card guides on the left
side of the chassis
.
2. Slide the power supply in until it is flush with the chassis. Then fasten the
power supply to the chassis
.
Use these screws to fasten the
power supply to the chassis.
1746-IN004A-ML-P
6
SLC 500™ Power Supplies
Power Supply Wiring
1. Place the input voltage jumper to match the input voltage. (This does not
apply to the 1746-P3, -P5, -P6, and -P7 power supplies, which do not have a
jumper.)
!
ATTENTION: Set the input jumper before applying power.
Hazardous voltage is present on exposed pins when power is
applied; contact with the pin may cause injury to personnel.
Catalog Number
1746-P1 & -P2
Fuse
Catalog Number
1746-P4
Jumper Selection
85-132V ac
Jumper Selection
170-265V ac
100/120 Volts
200/240 Volts
2. Connect the ground screw of the power supply to the nearest ground or
ground bus. Use a #14 AWG wire and keep the leads as short as possible.
The 1746-P4 is shown below. Refer to page 6 for special wiring
considerations for the 1746-P3.
CHASSIS GROUND
Nearest Ground Bus
1746-IN004A-ML-P
SLC 500™ Power Supplies
7
3. Connect incoming power.
ATTENTION: Turn off incoming power before connecting
wires; failure to do so could cause injury to personnel and/or
equipment.
!
Catalog Number
1746-P1 & P2
Catalog Number
1746-P3
+ 24V dc
120/240V ac
Incoming
Power
VAC NEUT
Incoming
Power
Catalog Number
1746-P5
Catalog Number
1746-P4
P4
Jumper
Selection
DC NEUT
CHASSIS GROUND
CHASSIS GROUND
85– 132V ac
Incoming
Power
JUMPER
+125V dc
DC NEUT
CHASSIS GROUND
170– 265V ac
Catalog Number
1746-P6
L1 85– 132/170– 265
P4
Incoming
Power
L2
+48V dc
NEUTRAL
CHASSIS GROUND
Incoming
Power
DC NEUT
CHASSIS GROUND
Catalog Number
1746-P7
+ 12/24V dc
Incoming
Power
DC NEUT
CHASSIS GROUND
!
ATTENTION: Your SLC 500 power supply can be damaged by
voltage surges when switching inductive loads such as motors,
motor starters, solenoids, and relays. To avoid damage to your SLC
500 power supply in these applications, it is strongly reccommended
than an isolation transformer be used to isolate the power supply
from harmful voltage surges.
1746-IN004A-ML-P
8
SLC 500™ Power Supplies
1746-P3 Wiring Considerations
The information below describes special wiring considerations for the 1746-P3.
!
ATTENTION: Any voltage applied to the 1746-P3 DC NEUT
terminal will be present at the SLC logic ground and the processor
DH-485 port. To prevent unwanted potentials across the logic
ground of the controller and/or damage to the SLC chassis, the DC
NEUTRAL of the external DC power source must be either isolated
from the SLC chassis ground or connected to earth ground as shown
in the following illustration.
1746-P3
External DC Power Source
Processor
Door
DH±485
Port
+24V dc
+24V dc
Earth Ground
SLC Logic Ground
DC Neut
DC Neut
Chassis
Ground
SLC 500 Chassis
• A jumper wire is
recommended between
the DC NEUT and
Chassis Ground of the
external power source.
Earth
Ground
Important: SLC 500 Series A chassis (1746-A4, -A7, -A10, and -A13)
manufactured before November 1992 have a resistor between the
logic ground and chassis ground as the drawing on the following
page illustrates. This resistor could be damaged if the wiring
recommendation described within the attention box above is not
followed. See the figure on the following page for the location of
the resistor. SLC 500 Series A chassis (1746-A4, -A7, -A10, and
-A13) with a manufacture date of November 1992 or later do not
have this resistor. SLC 500 Series B chassis have a 1MΩ resistor
that limits the current between logic ground and chassis ground.
1746-IN004A-ML-P
SLC 500™ Power Supplies
1746-P3
Processor
9
SLC 500 Chassis
Door
Not Used
DH±485
Port
Not Used
SLC Logic
Resistor
•
Chassis
•
+24V dc
DC Neut
Chassis
Ground
Earth
Ground
4. (Optional) For the 1746-P1, -P2,-P4, -P5 and -P6 power supplies, use PWR
OUT +24V dc and PWR OUT COM terminals to power 24V dc sensors and
loads. The terminals on the 1746-P1, 1746-P2, 1746-P5 and 1746-P6
provide an isolated, nonfused 200 mA, 24V dc power supply. The terminals
on the 1746-P4 provide an isolated, nonfused 1A, 24V dc power supply.
(The 1746-P3 and -P7 power supplies do not provide for an external power
source.)
Catalog Number
1746-P1, P2, P5 & P6
User Power
PWR OUT +24V dc
PWR OUT COM
Catalog Number
1746-P4
User Power
PWR OUT +24V dc
PWR OUT COMMON
1746-IN004A-ML-P
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SLC 500™ Power Supplies
SLC 500 Operation with 24V dc User Power Overcurrent Condition
Catalog No.
SLC Operation
Recovery Procedure
1746-P1 Series A
(made in Japan)
P/S shutdown, CPU Fault
Reload user program
1746-P1 Series A
(made in Malaysiacurrent production)
24V dc user shutdown, CPU continues
Correct overcurrent condition
1746-P2 Series A, B
P/S shutdown, CPU Fault
Reload user program
1746-P2 Series C
24V dc user shutdown, CPU continues
Correct overcurrent condition
1746-P4 Series A
P/S shutdown, CPU Fault
Reload user program
1746-P5 Series A
24V dc user shutdown, CPU continues
Correct overcurrent condition
1746-P6 Series A
24V dc user shutdown, CPU continues
Correct overcurrent condition
!
ATTENTION: For 1746-P1 (made in Malaysia), 1746-P2 Series
C, 1746-P5 Series A, and 1746-P6 Series A to aviod unexpected
operation due to 24V dc user power shutdown, monitor the 24V
dc user output with a 24V dc input channel.
5. Remove the protective label.
1746-IN004A-ML-P
SLC 500™ Power Supplies
11
Power Supply Undervoltage Operation
SLC 500 controllers continue to operate (hold-up) for a short period of time if the
input voltage to the power supply drops below the recommended operating
voltage range. The controller continues to scan the user program and control I/O
during this time. CPU hold-up for each power supply is shown on pages 9 and 10.
SLC 500 controllers turn OFF (stop scanning and disable outputs) if input
voltage to the power supply is removed or drops below the recommended
operating range for a period exceeding the CPU hold-up time. The controller
resumes operation automatically when the input voltage is restored to normal.
If the input voltage to the 1746-P7 power supply falls into a range of 4 to 9V for
a period exceeding the CPU hold-up time, the controller turns OFF and will not
turn back ON until:
• input voltage is increased to 11V dc.
1746-IN004A-ML-P
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SLC 500™ Power Supplies
General Specifications (Power Supplies P1, P2, P3, and P4)
See page 10 for general specifications on the P5, P6, and P7 power supplies.
Specification: 1746Description:
P1
Line Voltage
P2
85-132/170-265V ac
47-63 Hz
Typical Line Power
135 VA
Reqmnt.
180 VA
P3
P4
19.2-28.8V dc
85-132/170-265V
ac 47-63 Hz
90 VA
240 VA
Maximum Inrush
Current
20A
Internal Current
Capacity
2A at 5V dc
0.46A at 24V dc
5A at 5V dc
0.96A at 24V dc
3.6A at 5V dc
0.87A at 24V dc
10.0A at 5V dc
2.88A at 24V dc1
Fuse Protection 2
1746-F1 or
equivalent3
1746-F2 or
equivalent4
1746-F3 or
equivalent5
Fuse is soldered in
place.
45A
24V dc User Power 200 mA
Current Capacity
24V dc User Power
18-30V dc
Volt. Range
1A1
Not Applicable
20.4-27.6V dc
Ambient Operating 0°C to +60°C (+32°F to +140°F)
Temperature
Current capacity is derated 5% above +55°C.
0°C to +60°C
(+32°F to +140°F)
no derating
Isolation6
None7
2600V dc for 1 s
5 ms (full load)
1000 ms (no load)
20 ms (full load)
3000 ms (no load)
1800V ac RMS for 1 s
CPU Hold-up Time8 20 ms (full load) 3000 ms (no load)
Certification
UL listed
C-UL or CSA certified (as indicated by product or packaging markings)
CE compliant for all applicable directives
Hazardous
Environment Cert.
Class I
Division 2
1. The combination of all output power (5 volt backplane, 24 volt backplane, and 24 volt user source)
cannot exceed 70 watts.
2. Power supply fuse is intended to guard against fire hazard due to short-circuit conditions. This fuse may
not protect the supply from miswiring or excessive transient in the power line.
3. Equivalent fuses: 250V-3A fuse, nagasawa ULCS-61ML-3, or BUSSMAN AGC 3
4. Equivalent fuse: 250V-3A fuse, SANO SOC SD4, or BUSSMAN AGC 3
5. Equivalent fuse : 125V-3A fuse, Nagasawa ULCS-61ML-5, or BUSSMAN AGC 5
6. Isolation is between input terminals and backplane.
7. No isolation between input terminals and backplane. However, dielectric withstand between input
terminals and chassis ground terminal is 600V ac RMS for 1 s.
8. CPU hold-up time is for 0V unless specified. Hold-up time is dependent on power supply loading.
1746-IN004A-ML-P
SLC 500™ Power Supplies
13
General Specifications (continued)
Specification: 1746Description:
P5
Line Voltage
Typical Line
Power
Requirement
Maximum Inrush
Current
P6
P7
90-146V dc
30-60V dc
10-30V dc1
85 VA
100 VA
12V dc input: 50 VA
24V dc input: 75 VA
20A
20A (required for turn-on)
Internal Current
Capacity
5A at 5V dc
0.96A at 24V dc
12V dc input:
24V dc input:
2.0A at 5V dc
3.6A at 5V dc
0.87A at 24V dc
0.46A at 24V dc
See P7 current capacity chart on page 11.
Fuse Protection 2
24V dc User
Power Current
Capacity
24V dc User
Power Voltage
Range
Fuse is soldered in place.
Ambient
Operating Temp.
Isolation3
CPU Hold-up
Time4
200 mA
Not Applicable
18-30V dc
0°C to +60°C (+32°F to +140°F)
Current capacity is derated 5% above +55°C.
1800V ac RMS for 1 s
600V ac RMS for 1 s
12V dc input:
1.37 ms at 0V dc
(full load)
20 ms
5 ms
895 ms at 0V dc
(full load)
(full load)
(no load)
3000 ms (no
1500 ms (no
10 ms at 9V dc
load)
load)
(full load)
continuous at 9V dc
(no load)
24V dc input:
40 ms at 0V dc
(full load)
1860 ms at 0V dc
(no load)
790 ms at 11V dc
(full load)
continuous at 11V dc
(no load)
Certification
UL listed
C-UL or CSA certified (as indicated by product or packaging markings)
CE compliant for all applicable directives
Hazardous
Environment
Certification
Class I
Division 2
1. See page 11. for information on power supply under voltage operation.
2. Power supply fuse is intended to guard against fire hazard due to short-circuit conditions. This fuse may
not protect the supply from miswiring or excessive transient in the power line.
3. Isolation is between input terminals and backplane.
4. CPU hold-up time is for 0V unless specified. Hold-up time is dependent on power supply loading.
1746-IN004A-ML-P
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SLC 500™ Power Supplies
24V dc
Output Current
5V dc
Output Current
.87A
3.6A
0.625A
2.64A
0.46A
2.0A
Input Voltage
10V dc
12.2V dc
19.2Vdc
15Vdc
Physical Dimensions
Controller: 1746P1
P2
P3
P4
Length:
mm (in.)
Depth:
mm (in.)
65 (2.56)
85 (3.35)
140 (5.70)
110 (4.33)
145 (5.70)
85 (3.35)
140 (5.70)
P5
P6
P7
1746-IN004A-ML-P
Height:
mm (in.)
140 (5.51)
30V dc
Publication 1746-IN004A-ML-P - January 2000
40072-083-01 (A)
Supersedes Publication 1746-5.1 - Oct 1999
 2000 Rockwell International. All Rights Reserved. Printed in USA
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