Siemens SIPART PS2 series - Mechanic Limit Switches (MLS) 6 DR4004-6 K; -8 K; Mechanic Limit Switches (MLS) - Mode of Operation and Equipment Features

4.5.5 Mechanic Limit Switches (MLS) 6DR4004-6K / -8K
4.5.5.1 Mechanic Limit Switches (MLS) - Mode of operation and equipment features
Function
Mechanic Limit Switches (MLS) are used to report two limits. These limits are reported using
galvanic switching contacts.
Device features




① Actuating disk bearings ④ Upper actuating disk for limit L1, terminals
51/52
② Special screw ⑤ Lower actuating disk for limit L2, terminals
41/42
③ Pin
Figure 4-18 Mechanic Limit Switches (MLS), schematic representation
Mechanic Limit Switches (MLS) contain:
● One digital output to display a group fault message. Compare with the device features of the
Mechanic Limit Switches (MLS).
● Two switches to report two mechanically adjustable limits. Both these switches are
electrically independent from the remaining electronic unit.
Installing/mounting
4.5 Installing option modules
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 65