Installation, connecting up, sources of problems
4.2 Connecting up
SCALANCE X-100
46
Operating Instructions, 04, A2B00060666D
WARNING
The device is designed for operation with safety extra-low voltage. This means that only
safety extra-low voltages (SELV) complying with IEC950/EN60950/ VDE0805 can be
connected to the power supply terminals.
The power supply unit for the device power supply must meet NEC Class 2, as described
by the National Electrical Code(r) (ANSI/NFPA 70).
The power of all connected power supply units must total the equivalent of a power source
with limited power (LPS limited power source).
If the device is connected to a redundant power supply (two separate power supplies), both
must meet these requirements.
The signaling contact can be subjected to a maximum load of 100 mA (safety extra-low
voltage (SELV), 24 V DC).
Never connect the device to AC voltage.
Never operate the device with DC voltage higher than 32 V DC.
4.2.2
Signaling contact
Signaling contact
The signaling contact (relay contact) is a floating switch with which error/fault states can be
signaled by breaking the contact.
The signaling contact is connected to a 2-pin plug-in terminal block.
Figure 4-6
Signaling contact SCALANCE X-100
Figure 4-7
Terminal block, two-pin
Summary of Contents for SIMATIC NET SCALANCE X-100 Series
Page 40: ...Product properties 3 12 Displays SCALANCE X 100 40 Operating Instructions 04 A2B00060666D ...
Page 54: ...Approvals and markings SCALANCE X 100 54 Operating Instructions 04 A2B00060666D ...
Page 62: ...References SCALANCE X 100 62 Operating Instructions 04 A2B00060666D ...
Page 72: ...Glossary SCALANCE X 100 72 Operating Instructions 04 A2B00060666D ...
Page 74: ...Index SCALANCE X 100 74 Operating Instructions 04 A2B00060666D U UL approval 6 ...