Local control station (LCS) P&ID symbol

Local control station (LCS)

IEC 60617 / ISA 5.1 (HS) / company practice
Drawn as
A small box beside a motor marked "LCS", with start/stop push-buttons (small circles) or HS bubbles, and a dashed signal line to the MCC.
Meaning
Field push-button station for local start/stop and emergency stop of a motor. Becomes local-control-station.
Variants
  • P&IDs often show it as an HS bubble joined to the motor by a dashed line
Tags
LCS · HS · HS