We are offering conveyor safety switch monitor.
Protocontrol developed unique, proven product for large material handling plants where multiple numbers of switches are connected in series. Trip indicator is developed to give exact indication of operated switch in control room
advantages:
most advanced method of locating operated switch with instant indication, & tripping,
time required to search for operated switch is eliminated.
communication through two core cable only, less cable cost and cable laying cost
interchangeable communicating card
rs 232 rs-485 modbus op, plc interface for fault logging.
binary op: optional
miniature size of communication cards fail safe circuit
specially suitable for high length conveyors
scrolling display of multiple operated switch
roll call feature: indicates missing of communication card
general field problems like: cable open. Cable short are indicated on trip indicator
redundant op: optional
trip indicator: effective working even if switches are filled with water
principle of operation:
a small communication card is to be wired inside the conventional safety switch. The trip indicator is to be installed in suitable location like control room. When any switch is operated, the location number of operated switch is displayed on the trip indicator. The trip indicator is also provided with relay output which can be interlocked with existing relay logic circuit. For additional safety, protocontrol offers adaptor units for hard wire tripping, eliminating high voltage wires going to the switch compartment. This provides additional safety against effect of cable capacitance and damage due to wiring of high voltage wires to communication circuit.
functional description:
various models are available depending on number of safety switches length of belt, number of conveyors, configuration of communication op etc. However all models will have following basic features.
When any safety switch is operated, the op relay of trip indicator is operated, tripping conveyor instantly. Operated switch number is also displayed and communicated to plc dcs as per requirement. All safety features are incorporated along with special features.

We are offering conveyor safety switch monitor.
Protocontrol developed unique, proven product for large material handling plants where multiple numbers of switches are connected in series. Trip indicator is developed to give exact indication of operated switch in control room
advantages:
most advanced method of locating operated switch with instant indication, & tripping,
time required to search for operated switch is eliminated.
communication through two core cable only, less cable cost and cable laying cost
interchangeable communicating card
rs 232 rs-485 modbus op, plc interface for fault logging.
binary op: optional
miniature size of communication cards fail safe circuit
specially suitable for high length conveyors
scrolling display of multiple operated switch
roll call feature: indicates missing of communication card
general field problems like: cable open. Cable short are indicated on trip indicator
redundant op: optional
trip indicator: effective working even if switches are filled with water
principle of operation:
a small communication card is to be wired inside the conventional safety switch. The trip indicator is to be installed in suitable location like control room. When any switch is operated, the location number of operated switch is displayed on the trip indicator. The trip indicator is also provided with relay output which can be interlocked with existing relay logic circuit. For additional safety, protocontrol offers adaptor units for hard wire tripping, eliminating high voltage wires going to the switch compartment. This provides additional safety against effect of cable capacitance and damage due to wiring of high voltage wires to communication circuit.
functional description:
various models are available depending on number of safety switches length of belt, number of conveyors, configuration of communication op etc. However all models will have following basic features.
When any safety switch is operated, the op relay of trip indicator is operated, tripping conveyor instantly. Operated switch number is also displayed and communicated to plc dcs as per requirement. All safety features are incorporated along with special features.