ABB AC500 PLC Hardware Manual page 1262

System Assembly, Construction and Connection
AC500 (Standard) > Mounting and Demounting
2.6.3.1 Mounting/Demounting Terminal Bases and Function Module Terminal Bases
Demounting on
DIN rail
1.
2.
3.
Mounting with If the Terminal Base should be mounted with screws, Wall Mounting Accessories TA526
Ä Chapter 2.6.5.7 "TA526 - Wall Mounting Accessory" on page 1308 must be inserted at the
Screws
rear side first. These plastic parts prevent bending of the Terminal Base while screwing on.
TB51x needs one TA526, TB52x and TB54x need two TA526.
1262
Mount DIN rail 7.5 mm or 15 mm.
Mount the Terminal Base/Function Module Terminal Base:
ð The Terminal Base is put on the DIN rail above and then snapped-in below.
The demounting is carried out in a reversed order.
3ADR010121, 13, en_US 2019/04/17