
Starting Up the System
8-2
SIMATIC 545/555/575 System Manual
8.1 Powering Up the System
This section provides general guidelines for powering up your system.
!
WARNING
You must be fully informed about safety procedures before you power up the
system.
Failure to follow safety guidelines could result in death or serious injury to
personnel, and/or damage to equipment.
Review and comply with the safety procedures listed in Chapter 2 before
completing the following steps.
Follow these procedures when powering up your system for the first time.
1. Verify the following items.
• Check input power to verify that it matches the voltage used by
the power supply. If necessary, adjust the voltage selector on the
power supply to correspond to input power.
• Check for correct switch settings on all configurable modules,
namely, the CPU and annex card(s), if any, and any RBC(s). If you
intend to copy user programs into an installed EEPROM, the
jumper strap (E18) on your 545/555 CPU must be strapped, and
the CPU must be configured for EEPROM storage (see Chapter 7).
NOTE: Do not install a programmed EEPROM when commissioning your
system; the EEPROM must not be programmed before you have verified
component functionality and system installation and design.
• If any of your system bases have empty I/O slots, use filler bezels
and bezel screws to cover the openings in the base. This prevents
debris from getting into the system; it also helps prevent
electrostatic discharge and other types of electrical noise
interference.
• Ensure that all I/O interface cables are properly connected to I/O
interface connectors.
• Ensure that all configured bases are properly connected, that there
are no crimps or breaks in the cable, and that base addresses are
correct.
• Ensure that connector pins are not bent, that all modules are
securely plugged into the base(s), and that bezel screws are
tightened.
Overview
Start-up
Procedures
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