10
The electric motor has its own terminal board 14 with a cable leadthrough. The position of the output shaft
can be read on a position indicator mounted on the pull-rod. The individual operating functions of the actuator,
e.g., torque-limit switching,position-limit switching, auxiliary signalling, remote position indication
(potentiometer
position transmitter),
are provided by mechanical groups
(units),
which are accommodated on the control board
enclosed in the control box
(Figs 2 and 2a).
Control units (Figs 2, 2a)
a) Torque-limit switching unit
(12)
b) Signalling unit
(13)
c) Transmitter drive wheel
(14)
d) Potentiometer position transmitter or current transmitter of 4 to 20 mA without position transmitter
(15)
e) Position-limit switching unit
(16)
f) Anti-condensation heater
(17)
Legend:
14 – Drive wheel
15 – Current position transmitter
75 – Shim plates
Other items are identical to those used on the
control board with potentiometer shown in Fig.2.
The same applies to the numbers of microswitch
terminals. In the actuator, Type No. 52 442, the
transmitter support is positioned at an angle of
180 °C with respect to the illustrated position.
Fig.2a -
Base plate - design with current transmitter
14
66 13
17 67
15
66
16
75
66
12
Legend:
12 – Torque–limit switching unit
13 – Signalling unit
14 – Transmitter motive wheel
15 – Potentiometer position transmitter
16 – Position–limit switching unit
17 – Anti–condensation heater
66 – Fixing screws
67 – Basic control board
The encircled numbers correspond to
the numbers of terminals on the terminal board
of the actuator.
The microswitches can be used as one-circuit
devices only.
At actuators type no. 52 443 is position transmitter
support turned about 180 degrees beside picture.
Fig.2 -
Base plate - desing with potentiometer
Připomínky k návodu MTN 3/19
Strana 10
– nahradit obr. 2 následujícím
Strana 13
- Nový text pro odporový vysílač (nahradit červený text)
d) Odporový vysílač polohy 1 x 100 Ω
Tento vysílač má jednostranně vyvedený hřídel a na jeho konci je upevněno dvojkolo 73 složené
z ozubených kol A a B. Princip náhonu a seřízení vysílače je stejný, jako u proudového vysilače
CPT 1Az. Rozdíl je pouze ve velikostech ozubených kol A a B dvojkola 73 a tím i v tabulce pro
nastavení pracovního zdvihu.
14 66
13
66
75
15
67
12
17
16
18
17
19
16
14
15
