The DVESLY-4M-R0 thyristor panel is designed to control two wound-rotor induction motors and provides one step of control in both directions of the motor operation. Using a starting reactor in the rotor circuit ensures relative softness of start and braking of cargo crane mechanisms.

To regulate motor speed a thyristor regulator of third party manufacturers can be used.

Given the unique characteristics of the crane we offer customized crane control systems in close cooperation with the end-user and customer.

Application range The DVESLY-4M-R0 thyristor panel is applied on bridge cranes, gantry cranes, portal cranes, etc. on the following mechanisms:
  • Traveling of a two-motor trolley;
  • Traveling of a two-motor bridge;
  • Trolley slew motion and other horizontal two-motor axis.
Operating principle

The DVESLY-4M-R0 panel is equipped with power thyristors for rotor and stator circuit switching. The DVESLY-4M-R0 panels do not have mechanical contactors in electrical circuits, which provides high level of operating reliability and failure-free operation of electric equipment.

Functions and capacity The TEDF-4M-R0 has the following functions:
  • provides contactless switching of power mains on two motor stator windings to ensure reverse rotation by means of cross-switch of two phases of stator windings;
  • provides parameterized motor protection from peak operating and starting currents in the stator circuit;
  • provides deactivation of all system devices in case of inadmissible voltage parameters of power mains;
  • deactivates the motor as a result of tripping-over on the end switch with a possibility to move in the opposite direction.

Warranty period of this thyristor drive is 18 months from the date of crane commissioning, but does not exceed 24 months from the date of manufacture.

Complete delivery

The DVESLY-4M-R0 thyristor panel standard package includes:

  • electric cabinet with the DVESLY-4M-R0 thyristor control panel;
  • technical manual;
  • spare fuse elements;
  • thyristors of each type used in this panel version;
  • control boards of each type used in this panel version.
Approval documents

The DVESLY-4M-R0 thyristor panel complies with the applicable Procedure for Design and Safe Operation of Cranes of the Russian Federation, of the Republic of Belarus and is allowed to be used on hoisting mechanisms.

Basic specifications

Parameter Value
Load power 1,5-60 kW
Speed regulation depth 1:3
Mean Time To Repair 60 min
Power supply 400V, 50Hz
Control circuits voltage 24VDC or 220VAC
Control circuits current 150mA
Internal power consumption <150 W
Cabinet service type Single-sided (double-sided*)
Environmental conditions Non-aggressive and non-conductive dust and gases
Cabinet color RAL 7035 (light-grey)
Coatingpowder painting powder painting
Protection degree IP54
Efficiency >0,95
Vibration >М4
Altitude above sea level >2000 m
Operating temperature -40 +55 C

Modifications DVESLY-4М-R0

(1 speed step)
DVESLY-4М-R0-63 DVESLY-4М-R0160 DVESLY-4М-R0-250 DVESLY-4М-R0-400
Rotor resistors steps - - - -
Rotor reactive steps 1 1 1 1
Power (P=40%) 2х7,5 kW 2х30 kW 2х55 kW 2х75 kW
Current (P=40%) 63A 160A 250A 400A
Dimensions, mm 1800х600х500* 1800х1200х500* 1800х1400х500* 1800х1400х500*
Weight 130 kg 155 kg 210 kg 220 kg
Price on request on request on request on request

* - Taking into account some particular features of a cranes, we can produce custom-made control panels according to the customer’s requirements.

- any quantity of commutator switches of the rotor circuit;
- individual selection of thyristors for the motors given;
- use of units for motors less than 15kW;
- special supply voltage of control circuits;
- special size of electric cabinets and maintenance method;
- Insulated power control room.

The information presented on this page is for information purposes only and may be altered by the manufacturer without any notice and cannot be a cause for an order. Actual technical specifications of different versions shall be agreed upon in written form on the order placement stage.

Individual performance

Please, make an individual perfomance if there are some special features in the structure of the crane.

Download the questionnaire