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

DS200SIOBH1ACA steam turbine card

The KDV 4.1 Bb1 contact is of higher ranking importance than that of the others. The Bb1-contact connects the drive system to the emergency stop sequence. Powering down is not permitted until it closes. The Bb1 contact closes if the electronic supply is connected to terminal X10a and no fault is present. The Bb1 contact opens in the event of the following faults: – tachometer fault – excessive temperature in the drive modules – drive module bridge fuses – loss of ± 15VM / + 24 VL signal voltage – open bus connection of missing plug – heatsink temperature of the KDV 4.1 too high – overcurrent in the KDV 4.1 power supply – earth connection in the drive system – bleeder overloaded

Electronics supply functioning HSM - Auxiliary voltage signal (X10/8) Transistor output: max. 100 mA The temperature pre-warning contact opens when heatsink temperatures get too high. The red LED "TÜ" lights up. The Bb1 contact interrupts the emergency stop sequence after 30 seconds. The reaction of the drive system to this fault depends on the NCB bridge (see Section 5.6). If an CNC controlled shutdown is needed, then the drives should be shut down within 30 seconds after a response from either the pre-temperature warning of the KDV or one of the drive modules.

Power supply functioning

The UD-contact acknowledges that the power supply is in order. It opens with the following problems: – no right rotating field – power failure/phase failure – link circuit voltage less than 200 V The response of the drive system to any of these faults depends on the „NCB“ bridge (see Section 5.6). Should a CNC-guided shutdown become necessary, then, if the UD contact responds, the drives need to be shutdown by a master controller In the event of problems in the power supply and within the drive system, the speed set-point value of all connected drive modules is switched to zero if the NCB bridge is open. The drives are braked at maximum torque. In the event of drive failure, the Bb1 contact additionally shuts down the power supply Set-point zero is suppressed with the following faults if the NCB bridge is closed: • Problem in power supply – mains failure/phase failure – link circuit voltage less than 200 V • Drive fault – open bus connection or missing plug – KDV 4.1 heatsink temperature too high – overcurrent in KDV 4.1 power section – bleeder overload This makes a CNC-guided shutdown of the drives in the event of mains or phase failure possible. The energy generated during braking must be greater than the energy consumed. The Bb1 contact always shuts down power in the presence of a drive failure.