User manual

FL SWITCH LM
1-6
PHOENIX CONTACT 7278_en_01
1.2.3 Removal
1. Remove all connectors.
2. Pull down the positive latches using a suitable tool (e.g., screwdriver). Both positive
latches remain snapped out. Then swivel the bottom of the module away from the DIN
rail slightly (A). Next, lift the module upwards away from the DIN rail (B).
Figure 1-5 Removal of the LMS
1.3 Installing the Lean Managed Switch
1.3.1 Connecting the Supply Voltage
1.3.1.1 Assignment of the COMBICON Connector
24 V DC The LMS is operated with a 24 V DC voltage that can be supplied redundantly, if required
(see Figure 1-6 version 2)
Terminal Meaning
1 Supply voltage +US1
2 GND US1
3 Supply voltage +US2
4 GND US2
5 and 6 Floating alarm contact
7 Functional earth ground
(optional)
8 Not used
C
A
B
U S 1
1 8765432
6 5 7 0 0 0 6
If redundant power supply monitoring is active (default setting), an error is indicated if
only one voltage is applied. A bridge between US1 and US2 prevents this error message.
It is also possible to deactivate monitoring in web-based management.