Description
hardware flow control. It is an ideal choice in the field of industrial automation.
In the formula, a is the design acceleration/deceleration value: s is the current actual position value of the
elevator: V2 is the maximum speed of the elevator at this position.
Considering that the lifting system needs to enter the parking track at a low crawling speed when entering the
end of the stroke to avoid equipment damage caused by large mechanical impact, therefore, when there are still
1~5m away from the parking position, the lifting speed is limited to 0.5m/ below s.
Since the instantaneous speed before parking is very low, the position accuracy of the system”s parking can
be relatively improved, which is particularly important when the auxiliary shaft is lifted.
2.2 Design and implementation of security protection functions
Mines have particularly strict requirements on safety and reliability of hoist control systems [5]. While ensuring high
reliability of electrical control equipment, the control system also sets up multiple protections in key links where failures
may occur, and detects the actions and feedback signals of these protection devices in real time.
First of all, monitoring the operating status of the elevator is the top priority in the safety protection
function of the elevator control system. In the control system, the operating speed and position of the
motor are monitored at all times, and the current position and speed values are compared with the system”s
designed speed and position curve. Once it is found that the
actual operating speed of the hoist exceeds the designed speed value, immediately Issue an emergency
stop command and strictly ensure that the lifting speed is within the safe monitoring range during the entire
lifting process. At the same time, position detection switches are
arranged at several locations in the wellbore, and these position detection switches correspond to specific
position values and corresponding speed values. When the elevator passes these switches, if it is found through
encoder detection that the actual speed value and position deviate from the values corresponding to the position
detection switch, the control system will also judge that it is in a fault state
and immediately implement an emergency stop.
In order to determine whether the encoder connected to the main shaft of the elevator drum is normal,
two other encoders are installed on the elevator. In this way, the position and speed detection values
of the three encoders are always compared. Once it is found that the deviation between the detection
value of one encoder and the detection value of the other two encoders exceeds the allowable range,
the control system will immediately consider it to have entered a fault state and implement an emergency stop. Protective action.
3 Conclusion
The efficient and safe operation of main well equipment is an important guarantee for its function.
In the application of mine hoist, the 800xA system designed speed curve, self-correction, various
self-diagnosis and protection functions according to the specific process characteristics of the main
shaft mine hoist, which has achieved good results in practical applications.
Control module DCS system spare parts M2004HW
Control module DCS system spare parts LXN1604-6
Control module DCS system spare parts LWN2660-6EG
Control module DCS system spare parts LWN2660-6E 3BHL000986P7002
Control module DCS system spare parts LWN2660-6E
Control module DCS system spare parts LWN2660-6
Control module DCS system spare parts LWN1902-6
Control module DCS system spare parts LTU-785
Control module DCS system spare parts LTC745A101 3BHE039905R0101
Control module DCS system spare parts LTC743CE22 3BHE013299R0022
Control module DCS system spare parts LTC743CE 3BHE013299R0001
Control module DCS system spare parts LTC743CE 3BHE013299R0001
Control module DCS system spare parts LTC391AE01 HIEE401782R0001
Control module DCS system spare parts LTC391AE01 HIEE401782R0001
Control module DCS system spare parts LTC391AE01 HIEE401782R0001
Control module DCS system spare parts LT8978BV1 HIEE320639R0001
Control module DCS system spare parts LT8978bV1
Control module DCS system spare parts LSP086388-001
Control module DCS system spare parts LPS01
Control module DCS system spare parts LMUSM02
Control module DCS system spare parts LM80
Control module DCS system spare parts LDSYN-101 3BHE005555R0101
Control module DCS system spare parts LDSYN-101
Control module DCS system spare parts LDSYN-101
Control module DCS system spare parts LDSTA-01
Control module DCS system spare parts LDSTA-01
Control module DCS system spare parts LDMUI-01
Control module DCS system spare parts LDMUI01
Control module DCS system spare parts LDMUI01
Control module DCS system spare parts LDMUI-001 61320946C
Control module DCS system spare parts LDMTR-01
Control module DCS system spare parts LDGRB-01 3BSE013177R1
Control module DCS system spare parts LDGRB-01 3BSE013177R1
Control module DCS system spare parts LDGRB-01 3AFE61320954P0001
Control module DCS system spare parts LDGRB-01 3AFE61320954P0001
Control module DCS system spare parts LDGRB-01
Control module DCS system spare parts LDGRB-01
Control module DCS system spare parts LD800HSEEX
Control module DCS system spare parts LD800HSE 3BDH000320R0101
Control module DCS system spare parts LD800HSE 3BDH000320R02
Control module DCS system spare parts LD800HSE
Control module DCS system spare parts LC1000-S/SP7
Control module DCS system spare parts LC1000-S/SP7
Control module DCS system spare parts L110-24-1
Control module DCS system spare parts L003748-AR 3BSX108237R300
Control module DCS system spare parts KX8974CV24 HIEE320606R1
Control module DCS system spare parts KUD181A01 3BHE013431R0001
Control module DCS system spare parts KUC755AE117 3BHB005243R0117
Control module DCS system spare parts KUC755AE117
Control module DCS system spare parts KUC755AE106 3BHB005243R0106
Control module DCS system spare parts KUC755AE106 3BHB005243R0106
Control module DCS system spare parts KUC755AE106
Control module DCS system spare parts KUC755AE105 3BHB005243R0105
Control module DCS system spare parts KUC720AE01 3BHB003431R0101
Control module DCS system spare parts KUC720AE01 3BHB003431R0001
Control module DCS system spare parts KUC720AE01
Control module DCS system spare parts KUC720AE
Control module DCS system spare parts KUC711AE101 3BHB004661R0101
Control module DCS system spare parts KUC711AE101 3BHB004661R0101
Control module DCS system spare parts KUC711AE101
Control module DCS system spare parts KUC711AE01 3BHB004661R0001
Control module DCS system spare parts KUC711AE01 3BHB004661R0001
Control module DCS system spare parts KUC711AE 3BHB004661R0101
Control module DCS system spare parts KUC711AE 3BHB004661R0001
Control module DCS system spare parts KUC711AE 3BHB004661R0001
Control module DCS system spare parts KUC711AE
Control module DCS system spare parts KUC321AE HIEE300698R1
Control module DCS system spare parts KUC321AE HIEE300698R0001
Control module DCS system spare parts KSD211B101 3BHE022455R1101
Reviews
There are no reviews yet.