Siemens M7-400 Benutzerhandbuch

3-16

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

The following table applies to power supply modules with one battery if the BATT
INDIC switch is in the BATT position. It shows the faults indicated and lists how to
remedy the faults.

Table 3-9

BAF, BATTF; BATT INDIC LEDs on BATT

H

H

Battery empty or missing
No backup voltage available

Insert new battery.
Press FMR momentary-contact
pushbutton

D

H

Battery empty or missing

Insert new battery.
Press FMR momentary-contact
pushbutton

Battery has been stored for
too long

Depassivate battery 
(see Installation Manual  Chapter 7)

too long

(see Installation Manual, Chapter 7)

H

D

Battery in order
No backup voltage available
(short circuit)

•

Fault after plugging in a module:
Plugged-in module defective

•

Fault after switching on: Remove all
modules and plug in individually

D

D

Battery in order

–

D = LED is dark;  L = LED lights up;