R5 Quick installation guide   39
Install optional modules, if any
See chapter Electrical installation in ACS580-01 (0.75 to 250 kW, 1.0 to 350 hp) 
hardware manual (3AXD50000018826 [English]).
Reinstall cover
See figure H on page 74.
1. IP21, Reinstall the box cover
: Slide the cover upwards (1a) and tighten the 
retaining screws (1b).
2. IP21, Reinstall the module cover
: Put the tabs on the inside of the cover top in their 
counterparts on the housing (2a), press the cover at the bottom (2b) and tighten the 
retaining screws (2c).
3. IP55, Reinstall the front cover
: Put the tabs on the inside of the cover top in their 
counterparts on the housing (3a), press the cover at the bottom (3a) and tighten the 
retaining screws (3b).
For start-up instructions, see chapter Quick start-up guide on page 55.