Replacing the control unit
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do installation, commissioning or
maintenance work.
1. Stop the drive and do the steps in section
Electrical safety precautions
in the
applicable hardware manual before you start the work.
2. Remove the fiber optic cables and detachable terminal blocks that have control
cables connected.
3. If the control unit is attached to the rail with end brackets, remove them.
4. Remove the control unit from the DIN rail:
a. Push the control unit against the mounting spring until it releases from the
DIN rail.
b. Tilt the control unit away from the DIN rail and lift it out.
5. Make sure that the type of the new unit is correct.
Can be replaced withType
UCU-22, UCU-23, UCU-24, UCU-25, UCU-26UCU-22
UCU-23, UCU-24, UCU-25, UCU-26UCU-23
UCU-24, UCU-25, UCU-26UCU-24
UCU-25, UCU-26UCU-25
UCU-26UCU-26
6. Install the new control unit in reverse order.
If there is a safety circuit connected to the STO terminals (XSTO) of the control unit,
do the acceptance test of the safety function after replacing the control unit. Refer
to the converter module hardware manual or safety option user’s manual.
Maintenance 25
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