0-57491-

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Automate Power Supply Obsolete w/ Keys

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  • Part Number: 0-57491-
  • SKU: 057491RE
  • Manufacturer: Reliance Electric
  • Series: AutoMax PLC

0-57491- Technical Specifications

Manufacturer Reliance Electric
Series AutoMax PLC
Part Number 0-57491-
Product Type Power Supply Module
Instruction Manual J-3670

About the 0-57491-

The 0-57491- unit is a power supply module that was created and manufactured by Reliance Electric. The 0-57491- power supply module can usually be found within AX Control’s stock even though its production has been halted by Reliance Electric, so be sure to give us a call to check on the availability.

The 0-57491- power supply module was designed to convert 115 VAC of input power into the DC voltages that are necessary to operate the other modules that are contained within the rack. When the 0-57491- power supply module powers up, it will begin what it calls a “soft start.” This process gradually increases its output until it reaches the necessary voltage for logic operations to begin.

In the event that the AC input falls below the lower line of the voltage limit, the 0-57491- power supply module will automatically generate a power fall interrupt signal at least three milliseconds prior to the loss of the DC power that is regulated. This will allow for the holdover time on the AC input loss to be 20 milliseconds. In the event that there is a power fail interrupt signal, 5 Volts of output power will be supplied by the battery back-up, should it be installed. When this happens, the volatile memory of the processor modules and the common memory module will be maintained. Lastly, if the battery back-up voltage every falls lower than 3.0 Volts, then the memory will be lost and the processor modules will cease to function until the power supply is manually reset by the user by turning the front panel’s keyswitch to the PROGRAM position.

Reliance Electric products like the 0-57491 may have been manufactured under previous company names including Baldor Reliance and Asea Brown Boveri. 

Frequently Asked Questions about 0-57491-

What does the keyswitch on 0-57491- do?
The keyswitch on 0-57491- routes TTL signals through the multibus backplane to the processor modules to allow lockout of programming functions for system security. The 0-57491- keyswitch has three positions: PROGRAM, MEMORY PROTECT, and SET UP. 
How is 0-57491- powered up?
When 0-57491- is powering up, 0-57491- executes a "soft start." 0-57491- gradually increases its output until it reaches the voltage necessary for logic operations upon powering 0-57491-.
What is the shipping weight of 0-57491-?
0-57491- has a shipping weight of 8.5lbs.
Where can I find the manual for 0-57491-?
The manual for 0-57491- can be provided to you by AX Control. We provide most product manuals. The manual specific to 0-57491- is the AutoMax Power Supply Module and Racks Manual - Manual J-3670. If you need the manual for 0-57491-, request the manual from us or search for the manual on our site.
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Repair Services For 0-57491-

Type Lead Time Price Action
Repair Service 1-2 weeks $251

Our highly skilled technicians can repair your 0-57491-. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

0-57491- Manuals, White Papers, Data Sheets, and Troubleshooting