Installation 10.98
6SE7087-6KP50 Siemens AG
5-4 Operating Instructions SIMOVERT MASTERDRIVES
5.2 Installing the optional boards
The unit has hazardous voltage levels up to 5 minutes after it has been
powered down due to the DC link capacitors. The unit or the DC link
terminals must not be worked on until at least after this delay time.
5.2.1 Installing optional boards on units with a width up to 90 mm
Disconnect the rectifier unit from the power supply and and switch OFF
the unit. Remove the 24V power supply for the electronics. Take off all
connecting leads.
Dismantle the unit as follows:
♦
Open the terminals of the DC link bus module.
♦
Remove the fixing screws by means of which the unit is fixed to the
mounting surface.
♦
Pull the unit down until the DC link bus module is completely
exposed.
♦
Pull the unit out towards you.
♦
Lay the unit on its left side.
♦
Unscrew the two fixing screws of the right-hand side wall. The fixing
screws are located at the top of the unit at the rear right-hand
corner, and at the bottom of the unit in the middle of the right-hand
side wall.
♦
You do not have to remove the two fixing screws completely, as the
wall of the unit is provided with a cutout to enable you to swing out
the cover once the screws have been loosened.
♦
Open the right-hand side wall. To open it, swing the right-hand side
wall towards you and pull it upwards out of the guide on the front
edge.
♦
Remove the cover of the selected slot on the front panel.
♦
To do so, you must carefully cut through the four connecting points
of the cover on the front panel with a thin knife.
WARNING
Disconnecting the
rectifier unit from
the mains
Dismantling the unit
Opening the unit
Removing the slot
cover
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