Replacing A Fuse In The Interface / Power Module - Siemens ET 200pro Operating Instructions Manual

Maintenance and service

7.6 Replacing a Fuse in the Interface / Power Module

7.6 Replacing a Fuse in the Interface / Power Module
Introduction
Replaceable fuses for protecting the ET 200pro:
● Interface module:
The bus module of the interface module is equipped with fuses for the electronic/encoder
supply 1L+ and load voltage supply 2L+ (glass tube fuse; 5x20; type 194; 12.5 A;
fast-blow), and a replacement fuse.
● Power module:
The rear panel of the interface module is equipped with a fuse for the load voltage supply
2L+ (glass tube fuse; 5x20; type 194; 12.5 A; fast-blow), and a replacement fuse.
The figure below shows the fuses in the bus module of the interface module.
①
②
③
Requirements
● To replace a fuse, shut down the 1L+ and 2L+ supply voltages, or remove the connection
module from the interface / power module.
Result: ET 200pro failure, or failure of the potential group of the power module
● Always replace fuses with the same type (the order numbers are available in the
Appendix (Page 462)).
Required tools
● Cross-tip screwdriver, size 2
● 3 mm screwdriver
166
Fuses (with cap) for the load voltage supply 2L+
Spare fuse
Fuses (with cap) for the electronic / encoder supply 1L+
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08