ACS310, ACS320, ACS350 and ACS355MUL1-R4 Installation Instructions1WARNING! Before installing MUL1-R4option, read the safety instructions andmechanical and electrical installation 1instructions in the drive User’s Manual.Follow the instructions when installing,operating and servicing the drive. Ifignored, physical injury or death mayfollow, or damage may occur to thedrive, motor or driven equipment.M4×82Note: You cannot lead the Safe torque off (STO) cablethrough the gland plate in the ACS355.2. Fasten the gland box frame to wall with four M4 screws (notincluded).1. Fasten the gland box frame to drive with two M4×16 screwsand one M4x8 screw. Note: The M4×8 screw is alreadyinstalled in the drive.45a5b35. Install the clamp (5a) for the control cable, or if cables are runin conduits, replace all clamps with suitable glands (notincluded). Run cables through the clamps and tighten. Stripcable ends. Fasten the grounding conductor (PE) of the input© 2010 ABB Oy. All Rights Reserved. 3AUA0000025916 Rev. C / 2010-01-253. If control cables or fieldbus option modules will be installed,remove the detachable lid (3) from the gland box cover.4. With any fieldbus option module except FRSA-00, install theoption grounding plate to the gland box frame. See Mechanicalinstallation in the drive manual.g g ( ) ppower cable and the twisted shield of motor cable under thegrounding clamps (5b). Connect the conductors to appropriateterminals. See Electrical installation in the drive manual.