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Model KGV5 Locking Switch for Emergency is used for locking protection and control for emergency along belt conveyor. Other protection devices along conveyor such as belt misalignment switch, longitudinal tearing sensor and signaling devices for start announcement and dotting liaison can be connected to electric control system by the locking switch which has Bus-type recognition circuit for fault location, and then the electric control system can recognize different fault and location. The locking switch is suitable for coal mine underground with explosion danger of methane and coal dust, also for industries of coal, metallurgy, chemical and building material, and for surface severe environment such as coal preparation plant, steel plant, thermoelectric power plant, grain storage, and port. |
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The locking switch can receive data request through CAN Bus and send input, output and realtime working status or values to Bus; |
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It can receive command from Bus and control responding output port; |
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It can send status or values of each port to Bus in fixed cycle; |
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It can connect with passive normal-open misalignment switch, and send the status of misalignment switch to Bus in realtime when the misalignment switch acts; |
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It can be equipped with CAN Bus-type devices (such as KCC2) by Bus interface; |
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It can connect with communication devices such as telephones by phone interface, the communication medium of amplifying telephone employs mine-used anti-flaming shielded cable with parameters: R 12.8  /km, L0.8 mH/km, C0.28  F/km, maximum communication distance 2 km; |
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It has function of automatic positioning, and the function can be blocked by connecting 1 and 2 of function module B; |
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It has function that 1-channel on/off output can be controlled by emergency-stop signal, and the function can be blocked by connecting 1 and 2 of function module C. |
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Explosion-proof Type: Mine-used Intrinsic Safety |
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Travel: 5 15 mm |
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Act Pull Force: 120  24 N |
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Reset Pull Force: 230 N |
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Working Voltage: DC 918.5 V, , rated voltage 18 V (when used in environment with explosive gas, supplied by I.S. power supplies like KDK8, KDK6, KDW15A, KDW16A, KDW210, KDW26) |
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Working Current: 35 mA when DC 15 V |
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Transmission Mode and Distance: CAN Bus, no master, baud rate 2500 bit/s, transmission distance 2 km (mine-used anti-flaming shielded cable with parameters C0.06 μf, L0.8 mH, R12.8 Ω/km) |
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Input / Output
2 channels for general On/Off input: high level  2.5 V, low level 0.7 V
1 channel for general On/Off output (passive CE output of triode): leakage resistance between two output ends 100 kΩ when output contacts in blocking status; output voltage 0.5 V when output contacts in conducting status and sink current is 2 mA |
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Overall Dimensions: 336.76  210 90
(mm) |
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Weight: 5 kg |
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