Baroness LM331, Service Manual, Page: 155 / 165

Used Symbols
The relay symbols used throughout this document are shown as follows.
Note:
Switches and coils are shown separately in the circuit diagrams.
E.g.) Relay 1 shown separately in circuits as a relay coil and relay contact point
Machine wiring diagram Circuit diagram
vgmkvc-043
K1
K1-1
vgmkvc-044
Relay coil signal
The corresponding relay contact point symbol (e.g.:
K1) is shown.
vgmkvc-030
Switch symbol or relay contact point symbol
a contact point type (NO)
Switch that is conductive during operation or when
the relay coil is energized.
To show this as a relay contact point, the
corresponding relay coil symbol (e.g.: K1-1) is
shown.
vgmkvc-032
Switch symbol or relay contact point symbol
b contact point type (NC)
Switch that is off during operation or when the relay
coil is energized.
To show this as a relay contact point, the
corresponding relay coil symbol (e.g.: K1-1) is
shown.
vgmkvc-033
Reference
LM331
Reference
Page 8-11
Electrical Circuit