Siemens S120 Manual page 483

Hide thumbs Also See for S120:

Table of Contents

Figure 11-15 Forming circuit for 1-ph AC Power Modules with resistors

● Make sure that the device does not receive a power-on command (e.g. from the keyboard

● Connect the forming circuit.

● While forming, the incandescent lamps must become less bright or go completely dark. If

● To form using resistors, the modules must remain in the circuit for approx. 1 h. The

Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4

or terminal block).

the incandescent lamps continue to be brightly lit, a fault has occurred in the drive unit or

in the wiring.

resistors will become very hot if there is a fault in the unit (surface temperature > 80 °C).

Service and maintenance

11.4 Forming the DC link capacitors