Door Interlocking System; Figure 3-21 Location Of Protection Features And Lights - ABB ACS5000 User Manual

3.8. Door interlocking system

The doors of each PCU compartment are secured with an electromechanical
interlocking mechanism to prevent them from being opened during operation.
The main protection features of the interlocking system are:
– Grounding switches (Fig. 3-22)
– Locking bars (Fig. 3-23)
The interlocking system ensures that you cannot connect the main power supply to
the drive until all doors of PCU compartments are closed and locked and the
grounding switches are in ungrounded position.
The interlocking system also ensures that you cannot open the doors of PCU
compartments until the main power supply is disconnected, the DC-link capacitors
are discharged and the grounding switches are in grounded position.
The doors of the COU compartment (control unit and motor terminal section) and
the WCU compartment are not integrated into the interlocking system and can be
opened at all time. However, do not open the swing frame of the control unit while
the drive is in operation.

Figure 3-21 Location of protection features and lights

For instructions on how to open and close doors, see "10.6.3 Opening and closing
the doors" on page 167.
PRODUCT
ACS5000W
DOCUMENT KIND
User manual
POWER ELECTRONICS AND CABINET FEATURES
DOCUMENT ID.
3BHS799208 E01
REV. LANG. PAGE
F en 53/178