MVF-3M
Purpose
The MVF-3M module is intended for work in chains of control of power actuation mechanisms by means of three independent switched contacts of the relay in schemes of a choice of the working phase corresponding to the set parameters, and indication of various operating modes of the block
Construstion
– The MVF-3M module is executed in the plastic case for installation on a DIN lath.
– On the forward panel of the module there are handles of regulators of installation of an operating mode of the relay and indicators of inclusion of the modes and a condition of controlled parameters.
– In the lower part of the module there are terminal blocks for connection it to a network and to the scheme of management. (Pict. 1).
The MVF-3M module is intended for work in chains of control of power actuation mechanisms by means of three independent switched contacts of the relay in schemes of a choice of the working phase corresponding to the set parameters, and indication of various operating modes of the block
Construstion
– The MVF-3M module is executed in the plastic case for installation on a DIN lath.
– On the forward panel of the module there are handles of regulators of installation of an operating mode of the relay and indicators of inclusion of the modes and a condition of controlled parameters.
– In the lower part of the module there are terminal blocks for connection it to a network and to the scheme of management. (Pict. 1).
Technical characteristics
Рис.1. Standard scheme of connection of MVF-3M. It is necessary to include a spark extinguishing chain parallel to the actuator coil R – 51 Ом 1Вт, С – 0,1 мкФ 630 В.
Attention! Connection of power-supply circuits of coils of contactors and alarm chains (L1, L2, L3, N) to a power network to make separate wires.
|
Parameter |
Value |
| Rated voltage | 220/380 V; 50 Hz |
| The switched current of contact of the internal relay (АС1 250 В) max | 16 А |
| Overall dimensions of the block |
71 х 90 х 60 mm |
| Weight, no more | 0,4 kg |
| Adjustable settings | |
| Top threshold of shutdown of the relay «U top t.» min | 230 V |
| Верхний порог отключения реле «U» max | 270 V |
| Hysteresis of the top threshold (unregulated) | 5 V |
| Lower threshold of operation of the relay «U l.t.» min | 150 V |
| Нижний порог срабатывания реле «U l.t.» max | 200 V |
| Temporary delay of return on the restored phase «t return» min | 0 min |
| Временная задержка возврата на восстановившуюся фазу «t return» max | 30 min |
| Temporary delay of turning on of the relay when switching on a phase with a rated voltage «t turn on» min | 0 s |
| Временная задержка включения реле при переключении на фазу с номинальным напряжением «t turn on.» max | 10 s |
|
Temporary delay of shutdown of the chosen phase at operation on the lower threshold «t turn off l.t.» min |
0 s |
|
Temporary delay of shutdown of the chosen phase at operation on the lower threshold «t turn off l.t.» max |
10 s |
| Hysteresis of the lower threshold «DUн.п» min | 5 V |
| Hysteresis of the lower threshold «DUн.п» max | 20 V |
Рис.1. Standard scheme of connection of MVF-3M. It is necessary to include a spark extinguishing chain parallel to the actuator coil R – 51 Ом 1Вт, С – 0,1 мкФ 630 В.
Attention! Connection of power-supply circuits of coils of contactors and alarm chains (L1, L2, L3, N) to a power network to make separate wires.