Siemens ST PCS 7 manual ET 200iSP power supply unit, 11/32

© Siemens AG 2007

Process I/O

ET 200iSP distributed I/O

ET 200iSP power supply unit

■Overview ■Design

ET 200iSP power supply unit is the designation for the combina- tion of one (standard) or two redundant power supply modules PS with the matching terminal module:

•Standard: TM-PS-A terminal module

•Redundancy: TM-PS-B terminal module (additionally)

Power supply modules and terminal modules must each be or- dered separately.

Functions of the power supply modules

•They provide the ET 200iSP with the safely isolated operating voltages for

-logic (via the backplane bus),

-PROFIBUS DP interface (IM 152-1),

-power bus (for powering the electronics modules).

•They handle the safety-related limitation of the output voltage.

•They have a pressurized metal enclosure (explosion protec- tion EEx d).

•They can be operated in redundant mode.

Depending on the operating mode (standard or redundant), one or two power supply modules are plugged onto the correspond- ing terminal modules. Hot swapping is also possible in the haz- ardous area.

The operating status of the power supply modules is displayed on two LEDs on the IM 152 interface module (one for each mod- ule).

The 24 V DC supply for the station is provided via EX e terminals on the terminal module of the power supply unit. This connection must not be removed in the hazardous area. The feeding power supply must be installed in the non-hazardous area.

The ET 200iSP must be terminated on the right-hand side (fol- lowing the last electronics module) by a terminating module. The terminating module is included in the scope of delivery of the IM 152.

■Selection and Ordering Data		Order No.
Power supply module PS for		6ES7 138-7EA01-0AA0
ET 200iSP
	TM-PS-A terminal module	6ES7 193-7DA10-0AA0	B)
	for standard operation
	TM-PS-B terminal module	6ES7 193-7DB10-0AA0	B)
	for redundant operation

B) Subject to export regulations: AL: N, ECCN: EAR99H

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Siemens ST PCS 7 · November 2007