Startup - Siemens S5-155U System Manual

S5-135U/155U Central Controller
4.1.3

Startup

4 - 12
Place the CC in operation in the sequence of steps given here. This
will take you up to the first trial run of the CPU. Given in parentheses
are references to the chapters of the manual in which the subject is
explained in detail.
To ensure a straightforward sequence for the startup, commence with
one CPU and no EUs.
Proceed according to the following steps to place the CC in operation:
Step Action
1 Install the PLC so that the supply of air and exhaust air are
unimpeded. If you fit two or more units (CC and EU) in one
cabinet, observe the clearances and use baffles where
necessary (see Chapter 3).
2 Fit the lithium battery (see Sections 4.3 and 4.5) and connect
the rechargeable battery.
3 Fit the CPU and set the mode switch to STOP.
4 Connect the power supply and, with a 230/120 V AC
supply, the 24 V DC load supply, to the monitoring input.
Check the setting of the voltage selector switch (on 230/
120 V AC power supplies). Fit a protective cover over the
AC terminals.
5 Switch on the power and, if present, the 24 V.
Reaction: Green LED "Power Supply ok" in the "DC 5 V"
field and in the "DC 15/24 V" field, as well as yellow LEDs
"RB low" and "MB low" light up.
6 Hold the CPU switch in the OVERALL reset position and
set the switch from STOP to RUN.
Reaction: The "Stop" LED flashes rapidly.
7 Repeat Step 6.
Reaction: The "Stop" LED lights up constantly.
8 Keep the pushbutton in the RESET position and set the
switch from STOP to RUN.
Reaction: Green "Run" LED lights up, "BASP" LED
(output inhibit) goes off.
System Manual
C79000-B8576-C199-03