Siemens Maxum II Reference Manual page 27

Physical Location
The PECM is mounted to the left inside wall of the EC cabinet. All fuses and electrical
connections are readily accessible.
Figure 2-10
Maxum II Reference Manual
Manual, 7/2017, 2000596-001
Electronic Compartment Component Descriptions and Maintenance Procedures
PECM3 Mounted in EC
2.2 Power Entry and Control Module
27