Siemens SIMATIC TI555 - Installing and Removing the CPU; Figure 3-10 Installing CPU Module in a Series 505 Base

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Installing Series 505 System Hardware TI545/TI555 System Manual
Installing the TI545/TI555 CPU (continued)
Refer to Figure 3-10 and follow the steps below to install the CPU.
1. Disconnect power to the base.
Disable all power before installing or removing the CPU.
Failure to do so could cause death or serious injury and/or damage
to equipment.
Ensure that all power is disabled before installing or removing the
CPU.
2. Position the CPU so that the bezel is facing you.
3. Grasp the top and bottom of the CPU module.
4. Carefully push the module into the slot until it mates with the back
plane connectors.
5. T ighten top and bottom bezel screws.
T o remove the CPU, disconnect the RS-485 cable from the I/O port, if it is
connected, and reverse the installation procedure.
Minimum torque: 2.61 in-lb (0.3 N-m)
Maximum torque: 5.22 in-lb (0.6 N-m)
Figure 3-10 Installing CPU Module in a Series 505 Base
Installing and
Removing the CPU
WARNING
!