Operating Instructions – Safety-Related BST Brake Module
29
8
Service
Inspection/Maintenance
8.3
Service
Have the following information available when you require assistance from the SEW-
EURODRIVE service:
• Nameplate data (complete)
• Type and extent of the problem
• Time the problem occurred and any accompanying circumstances
• Assumed cause
8.4
Unit replacement
Proceed as follows to replace a BST:
• Observe the notes regarding inspection/maintenance work for the BST.
•
DANGER
There may still be dangerous voltages inside the unit and at the terminal
strips for up to 10 minutes after the BST has been disconnected from the power
supply.
Severe or fatal injuries from electric shock.
– Disconnect the BST from the power supply and ensure that the unit cannot be
switched on unintentionally.
– Wait for 10 minutes before carrying out any maintenance or inspection work.
– Prior to maintenance or inspection work, make sure that the BST is de-energized.
• Compare the data on the nameplate of the BST to be replaced with the new one.
• Remove all connecting terminals.
• Disconnect the PE and the shield clamps.
• Push lightly on the opposite side of the connection terminals and remove the BST
from the support rail.
• Install the new BST on the support rail. Observe chapter "Mechanical Installation".
• Connect the PE and the shield.
• Connect all connection terminals.
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