The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.

DEIF GPU/2/GS Ship control module

The pulsed resistor modules can only convert a certain amount of energy into heat (refer to Table 6-24). The energy available to be converted depends on the voltage. A monitoring function protects the resistance against overload. If this responds, then no additional energy is converted into heat in the resistor. Caution In order to avoid damage to the infeed circuit of the NE modules, when controlling/energizing terminal X221 T.19/50, it should be ensured that terminal 48 of the NE module is deenergized (the module is electrically isolated from the line supply). The feedback signal contacts of the main contactor of the NE module must be evaluated to check whether the contactor has actually dropped out (X161 terminal 111, terminal 113 and terminal 213).

If there is a pulsed resistor in the system, in order to reduce the discharge time after opening terminal 48, the DC link can be quickly discharged via terminals X221:19 and 50 (jumpers). In this case, the electronics power supply must be implemented using a 3–phase line supply connection; this is not disconnected while discharging.

Pulsed resistor module

 and unregulated line supply infeed with pulsed resistor The pulsed resistor module (PR module) protects the DC link from overvoltage, which, for example, would occur for UI modules when braking or for I/R modules when the power fails when stopping. The possible braking power of the total system can be increased by using one or more pulsed resistor modules. The pulsed resistor module can be used to quickly discharge the DC link. If the pulsed resistor (PR) module is supplied from a monitoring module, the electronics power supply must be implemented with a 3–phase AC supply system. Fast discharge is not possible if the electronics power supply is exclusively implemented through the DC link (P500/N500). If heat–sensitive components, e.g. cable ducts, are located above the module with a clearance < 500 mm, then an air baffle plate must be provided (Order No. 6SN1162–0BA01–0AA0). As a result of the universal housing design of the pulsed resistor module, this can be used both for internally as well as externally cooled module groups. The UI and PR modules are equipped with a switch–on time monitoring; this protects the pulsed resistor from overheating. The switch–in and switch–out thresholds depend on the setting of the line infeed switch S 1.1 or S 1.4, see Chapter 6.3.

Number of pulsed resistors used on the same DC link

For a module group with pulsed resistor modules, they must be operated on the same power supply (device bus) of the I/R or monitoring module to ensure a simultaneous activation and deactivation of the resistors. Otherwise individual resistors/pulsed resistance modules can be overloaded. For UI modules that use the integrated pulsed resistors, additional pulsed resistor modules must be operated on the device bus (PS) of the UI module! An additional pulsed resistor module is not permitted for the 5 kW UI module!With externally attached pulsed resistors, the power loss of the resistor that occurs during braking accumulates outside the control cabinet and, thus, does not place a thermal load on the control cabinet. The external pulsed resistors are generally required for the 28 kW UI module. Depending on the power requirement, up to two equal pulsed resistors can be connected in the case of the 28 kW UI module. The protection function is parameterized via the connecting terminals.