WARNING
Death or severe personal injury could result if the following precautions are not taken
If a power supply is disconnected too early, sparking could cause an explosion.
After unlocking an ET 200iSP power supply, wait at least 2 minutes before disconnecting the
power supply in a hazardous atmosphere.
Permitted activities in zone 2
In addition to the activities permitted in zone 1, the following activity is also permitted:
WARNING
Death or severe personal injury could result if the following precautions are not taken
Disconnection and connection of the cables for the 24 V DC Power Supply on the terminal
module TM-PS-A/ TM-PS-A UC or TM-PS-B/ TM-PS-B UC during operation. This activity is
permitted only when there is no risk of explosion or when there is no power applied at terminal
module TM-PS-A/ TM-PS-A UC or TM-PS-B/ TM-PS-B UC.
Disconnecting and connecting cables for the actuators at terminal module TM-RM/RM during
operation. This activity is permitted only when there is no explosion hazard or when there is
no voltage applied at terminal module TM-RM/RM.
See also
Inserting and labeling electronic modules 2 DO Relay UC60V/2A (Page 128)
7.2
Removing and inserting electronics modules during operation (hot
swapping)
Properties
● The ET 200iSP distributed I/O station supports the removal and insertion of one electronic
module (1 gap) during operation (RUN mode).
● If one electronic module is removed, the ET 200iSP remains in the RUN mode.
● If you remove more than one electronic module, this leads to an ET 200iSP station failure.
Once you have inserted all the electronic modules again, you must restart the ET 200iSP;
in other words, turn the power supply off and on at the power supply module PS.
Maintenance
7.2 Removing and inserting electronics modules during operation (hot swapping)
ET 200iSP
186
Operating Instructions, 11/2017, A5E00247483-07
