M580 Safety Power Supplies

Introduction

The following power supplies can be used with the M580 safety PAC:

BMXCPS4002S 100...240 Vac redundant safety power supply
BMXCPS4022S 24/48 Vdc redundant high power safety power supply
BMXCPS3522S 125 Vdc redundant high power safety power supply

WARNING

LOSS OF THE ABILITY TO PERFORM SAFETY FUNCTIONS

Use only a BMXCPS4002S, BMXCPS4022S, or BMXCPS3522S power supply in any rack that includes an M580 safety module. Check both your physical installation and your project in Control Expert to confirm that only M580 safety power supply modules are used.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Power Supply Functionality

Each M580 safety power supply module converts Vdc or Vac power into two output voltages, 24 Vdc and 3.3 Vdc, as described below:

Features	Power Supply
Features	BMXCPS4002S	BMXCPS4022S	BMXCPS3522S
Main input power network	100...240 Vac, 50...60 Hz	24...48 Vdc	100...150 Vdc
Power limit output to backplane	40 Vdc	40 Vdc	40 Vdc
Ambient temperature for power limit	-25° C...+60° C	-25° C...+60° C	-25° C...+60° C
Wire to	AC network with neutral wired to the earth OR AC network with the neutral insulated and impedant against the earth, with AC neutral fused by user.	A DC network 24...48 Vdc	A DC network 125 Vdc

Each power supply detects over voltage, overload, and short-circuit conditions on both the 3.3 Vdc and 24 Vdc backplane lines.

If the 40 Vdc upper threshold is detected, the module takes the following responsive actions:

A reset is performed, causing the modules that receive power from the power supply to be re-initialized.
If the upper voltage threshold was detected on the:
- 24 Vdc backplane line: the PAC is powered down.
- 3.3 Vdc backplane line: the PAC operation stops, but the PAC continues to receive power.

Refer to the topic Diagnostics for the 24 Vdc and 3.3 Vdc Backplane Voltages for information on how to respond to these conditions.

Redundant Power Supply Modules

The BMXCPS4002S, BMXCPS4022S, and BMXCPS3522S are redundant power supply modules. Two of these power supply modules can be installed - one as master one as slave - in a redundant Ethernet rack. The possible configurations include the following:

Configuration	Features
Configuration	Manage Redundancy (Power Control and LED Signals)	Provide Data to the Application	Monitor and Save Power Supply Data
2 power supplies in main rack	✔	✔	✔
2 power supplies in extension rack	✔	X	✔
1 power supply in a legacy rack	X	X	✔
✔ = Supported. X = Not supported.

For more information on redundant power supplies, refer to chapter Modicon X80 Power Supply Modules Description.