D - Diodes (e.g.: free- running diodes of DC relay )
E - Illumination (230 V AC – 240 V AC [e.g.: E5 = cabin light])
F - Fuses (e.g.: F2 = control fuse)
G - Incremental encoder, tacho generator (analogue, digital)
H - Analogue signals, visible and audible (6 V DC - 24 V DC [e.g. H7
= alarm buzzer in the shaft])
I -
J -
K - Main and auxiliary contactors, relays (e. g.: K1= mains contactor
up)
L - Chokes, coils
M - Motors, fans
N - Mains filter
O -
P - Digital indicators
Q - Motor protection switch
R - Resistors (e.g.: R5 = positive temperature control thermistor)
S - Switches
T - Transformers (e.g.: T2 = control transformer)
U -
V - Rectifiers
W -
X - Terminals, terminal strips
Y - Magnets (brakes, locks, valves)
Z -
Examples of designations in circuit diagrams:
2K5 contactor K5 on page 2 ...
4S71 switch S71 on page 4 ...
On page 2... (e.g.: page 21) a »star« may be found as a designation
together with the corresponding contactor symbol, thus defining con-
tactor K5 as a star contactor .
On page 4... (e.g.: page 40) »correction up« may be found as a des-
ignation together with the corresponding switch symbol, thus defining
switch S71 as a »correction switch up«.
The CAD software used by BÖHNKE + PARTNER prevents the
duplication of designations.
Safety Circuit
INFO!
Once the safety devices are activated they prevent the lift from start-
ing when called and/or stop a travelling car immediately .
The safety circuit was designed to monitor the following external sig-
nals:
57
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