Power modules
ET 200S
Manual, Edition 10/2005, A5E00514527-01
2-3
Diagnostics: Fuse blown
Use this parameter to enable a diagnostic message because of a blown fuse.
If a fuse has blown only the diagnostic message of the affected power module is sent to the
DP master. The SF error LEDs of all modules in the relevant potential group light.
Voltage type
Use this parameter to select the load voltage that is connected to the power module: direct
voltage or alternating voltage.
If the load voltage fails or a fuse blows the correct diagnosis is returned.
2.3
2.3
PM-E 24 VDC power module (6ES7138-4CA01-0AA0)
Properties
•
The PM-E 24 VDC power module monitors the supply voltage for all the electronic
modules in the potential group. The supply voltage is fed in by means of the TM-P
terminal module.
•
You can use any electronic module in the potential group of the PM-E 24 VDC power
module except the 2DI 120 VAC Standard, 2DI 230 VAC Standard and 2DO 24 VAC to
230 VAC/1 A.
•
The current status of the power module is stored in the status byte in the process input
image (PII). This is updated irrespective of whether the "No Load Voltage" diagnosis has
been enabled.
•
The PM-E 24 VDC to 48 VDC power module is suitable for fail-safe modules.
Caution
Only connect the specified rated load voltage of 24 VDC to the TM-P terminal module of
the power module.
The connected rated load voltage must correspond to the supply voltage of the electronic
modules in the voltage group.
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