26 Rockwell Automation Publication 6000-UM002E-EN-P - April 2018
Chapter 2 Drive System Layout
Figure 16 - Door Position Limit Switch Location
Interlocking
Each cabinet door that allows access to medium voltage components is lockable.
Access to the medium voltage areas of the drive is restricted by the use of key
interlocking for safety.
At installation, the key interlocking is set up so that access to the medium voltage
compartments of the equipment can only be made when the upstream power is
locked in the off position. Additionally, the key interlocking prohibits the
upstream power being applied until the medium voltage drive’s access doors have
been closed and locked shut. It is the responsibility of the installer to ensure that
the key interlocking is installed properly to the upstream equipment.
To use the key interlocking safety feature:
1. The circuit breaker must be in the closed state and the circuit breaker lock
must be locked using interlocking key “KA”.
2. Remove key “KA” and insert it into the key interlock located on the right
door of the isolation transformer cabinet.
3. Rotate key “KA” to unlock key “KB”. You can now remove key “KB”.
Door position limit switch
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