Door Locking System; Optional Cabinets; Figure 3-24 Door Locks - ABB ACS1000i User Manual

3.6. Door locking system

To ensure safety and to prevent the doors being opened unintentionally, all doors are
lockable. The doors of compartments where medium voltages are present during operation
(2 in Fig. 3–24) are electro-mechanically secured.
Additionally, the doors of the medium voltage compartments have locks with different
inserts than the control compartment door. The different lock inserts ensure that these
doors can only be opened by personnel authorized to do so.
1
Figure 3–24 Door locks
1) Cover of terminal compartment: bolted
2) Door of transformer and rectifier
compartment: electro-mechanically locked
• Door cannot be opened when the main
power is connected.
For more information, see section 11.6.2, De-energizing the drive locally, page 132.

3.6.1. Optional cabinets

If medium voltages are present in an optional cabinet during operation (eg, braking
chopper and output disconnector), the door is secured by an electro-mechanical lock as well
as a door monitoring switch. If the cabinet is UL certified, the door is further secured with
extra screws. The lock and the switch release the door after the DC link of the drive has
discharged and the drive has been grounded.
PRODUCT
ACS1000i
2
DOCUMENT KIND
User manual
POWER ELECTRONICS AND CABINET FEATURES
3
3) Door of control compartment: lockable
4) Door of inverter compartment: electro-
mechanically locked
This door cannot be opened when the main
power is connected.
DOCUMENT ID.
3BHS206977 E01
4
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