ZPA Pecky, a.s. MODACT MOK 1000, Инструкция по установке и эксплуатации

Страница: 8 / 40

8
Electric strength of electric circuits isolation
Circuit of resistance transmitter 500 V, 50 Hz
Circuit of current transmitter 50 V DC
Circuits of microswitches and anti-condensation heater 1 500 V, 50 Hz
Electric motor
Un = 1 x 230 V 1 500 V, 50 Hz
Un = 3 x 230/400 V 1 800 V, 50 Hz
Deviations of basic parameters
Tripping torque ±15 % of the maximum tripping torque
Operating time of the output part - 10 %
of the rated value (in no-load operation)
+15 %
Hysteresis of position limit and signalling switches ≤4°
Adjustment of working travel ±1°
Clearance of the output part
actuators, Type Nos 52 325, 52 326, 52 328 1.5° max.
actuators, Type Nos 52 327, 52 329 2.5° max.
Protection
The electric actuators are fitted with external and internal protecting terminal for securing protection against
dangerous shock voltage.
The protecting terminals are marked according to ČSN IEC 417 (34 5550).
If actuator is not provided with over-current protection when purchased, such protection must be provided externally.
7. TECHNICAL DESCRIPTION
The MODACT MOK (MODACT MOK Control) actuators consist of the following two parts:
–
Power section constituted of a one-phase or three-phase asynchronous motor (see Tab. 1), a countershaft
gearbox, an epicyclic gear with the output shaft, a manual control mechanism with a handwheel and a floating worm
and, in the actuators, Type Nos 52 327 and 52 329, an output gearbox
(with adapter) with a 1:2 gear ratio.
Legend:
1 – Position–limit switching unit
2 – Position transmitter (potentiometr)
3 – Torque–limit switching unit
4 – Terminal board
5 – Electric motor
6 – Internal protective terminal
7 – Drive gear (or segment)
8 – Anti–condensation heater
9 – Starting capacitor
Fig. 1 - Control panel (type no. 52 325) Fig. 1 - Control panel (type no. 52 326 - 52 329)
Note: The encircled numbers are identical to the numbers of the cam releasing screws of the position-limit switching unit.