GGD控制柜中840A的电流需要横截面积多少的铜排?（垂直安装）

The machine tool and its control cabinet housing shall be connected with the special earthing device of the workshop reliably through earthing terminal.

澶ф?灏辨槸杩欐牱浜?涓嶈繃浼氭湁璇?樊璇疯皡瑙Ⅻbr/>3 then duly 220VAC and 24VDC main power and backup power supply,switch mode of choice for the "automatic",open the control counter-board power switch,control board counter the "main power" and "standby power" light is lit,"automatic sampling" light is lit,the system automatically run the first warm-up mode (the length of time for 0-1 minutes,can be observed on the screen Guangzhu progress),after the completion of warm-up into the automatic purge mode,use after decompression 4KG/CM2 the highest clean air for all testing conducted scavenging accommodation in order to rule out the possibility of sampling the water and gas pipelines and other objects,all detected light work of accommodation shown as "Scavenging"; Purge work is completed,sampling pumps work automatically to regulate the flow meter instructions to 1 L / MIN,the system automatically switches through the electromagnetic valve sampling space,the corresponding indicator light detection work space shown as "sampling",the screen shows the current measuring point of the combustible gas concentration readings ( Each detection channel switching time sampling length of 1-999 seconds,can be adjusted on the screen menu,the channel sampling the length of time can be individually set to a long time can also be unified settings).At this point the system has entered a state of normal operation.
4.4 Press the control panel counter test button,all lights and the panel should work buzzer.
4.5 If a class of combustible gas detection concentration above 10% LEL alarm default pre-concentration (0-50% LEL,can adjust the menu screen),pre-alarm status indicator light flashes (low frequency),buzzer-ming ring (low frequency),press the mute button,buzzer stopped ringing,pre-alarm status indicators into Always; if other detection accommodation exceeded again,the sound and light warning will come up again; If all the combustible gas detection accommodation concentration of less than default,press the reset button,pre-alarm status indicator goes out.Pre-alarm space,time,concentration of historical records and other information can display the relevant page inquiries,show.When the pre-alarm state,please stop hot work industry,check the relevant class of combustible gas leakage,and to exclude.
4.6 If a class of combustible gas detection concentration above 30% LEL alarm default main concentration (0-50% LEL,can adjust the menu screen),the main alarm status indicator light flashes (HF),buzzer ringing (high frequency),press the mute button,the buzzer to stop ringing,the main alarm status indicators into Always; if other detection accommodation exceeded again,the sound and light warning will come up again; If all the testing space combustible gas concentrations below the default,press the reset button,indicator light to turn off the main report to the police state.Alarm Master of accommodation,time,concentration of historical records and other information can display the relevant page inquiries,show.When the main report to the police state,please stop hot work industry,check the relevant class of combustible gas leakage,and to exclude.
4.7 Internal control cabinet combustible gas concentration monitoring by separate combustible gas sensor is responsible for continuous monitoring at any time,if the concentration of combustible gases inside the instructions more than 30% LEL default value of the main report to the police,the system automatically stops the control operation,"cabinet superscalar "light blinking,buzzer sound,press the mute button,the buzzer to stop ringing,the screen shows" superscalar inside." Combustible gas concentration inside until the readings dropped to normal,after troubleshooting inside,press the "reset inside superscalar" button "inside superscalar / reset" indicator goes out,the system can be re-run of the detection of accommodation for Sampling and Monitoring.
6.Failure to deal with
6.1 false alarm
6.1.1 to carry out artificial Purge pipeline,scheduled to make the residual gas sampling tube,the re-sampling measurement.
6.1.2 display alarm settings to check whether it is normal,if not correct,re-setting.
6.1.3 using a standard calibration gas sensors,if there is deviation,re-zero,gain calibration.
6.1.4 Inspection PLC working condition.
6.2 does not alarm
6.2.1 display alarm settings to check whether it is normal,if not correct,re-setting.
6.2.2 using a standard calibration gas sensors,if there is deviation,re-zero,gain calibration.
6.2.3 Inspection PLC working condition.
6.3 sampling pump does not work
6.3.1 sampling pump power to check whether it is normal for loop.
6.3.2 check whether it is normal for sampling pump.
6.3.3 inspection system for locking the state of alarm inside and if so,to reset.
6.3.4 inspection system is in purge mode.
6.4 system can not automatically switch sampling loop
6.4.1 inspection system in the automatic mode to choose whether or not a state.
6.4.2 Inspection PLC working condition.

关于interface的用法,已经有很多网友提出看法了,确实是不适合用.
可以考虑使用hole,openning,或者slot.考虑到图纸中的点,即可以表示一个孔或者开口,也可表示一个连接槽,因为你要连接的是金属管路,还有电缆,只有开槽或者开孔才能达到目的.
英文表述：opening/hole/slot connect A and B; 优先使用opening/hole,slot还有小小限制.

额定电流大约为功率的2倍.然后取电流密度为4-6A/mm2.自己计算.

2,pressurized water pump Frequency Control (AP1,AP2) in the corresponding control cabinet activated before the first check for control cabinet and the electrical power line into the next Chuxian good,and the insulation is good,accurate inspection after the order on a counter AP0 In the corresponding switch on the control of the switch cabinet to observe the XK1 button corresponding control signal box or counter the "power instructions," the bright lights,and then check whether the control Guishang three-phase power balance,everything is normal before they can start workPress Control XK1 me or the corresponding launch button,control relay (KJ1 or KJ3) electricity,Drives started work,control cabinet or XK1 me on the appropriate "work instructions" light-liang,said inverter has started work,this time through Conditioning control Guishang potentiometers can set up the pressure.The drive sensors detect the pressure and the pressure potential is set in the frequency converter to do within the PID operation,the changing motor speed,thus changing water pressure,constant pressure water supply to achieve the objective.After the water pumps working properly observe the three-phase current control Guishang whether the balance,if the imbalance should be promptly dealt with the inspection.If the control cabinet or XK1 control box "failure instruction" lights that work unusual frequency converter,can be ruled out after the failure of electricity.After the power inverter must be in accordance with the specification will be reset converter,in order to use the correct frequency devices,investment in equipment before the relevant technical personnel should seriously read the statement converter.And requirements set up the parameters,this set of control systems at the factory converter parameters have been set up,the user can not be easily modified Two water pumps to 45 KW,a one-up,automatic operation.Under normal circumstances only one frequency pumps work.When a failure or in need of rotation,another pump was put into operation.Use of frequency adjustment pressure,water pressure in a certain range automatic adjustment to achieve a dynamic stability values,to meet water needs.
3,the pressurized water pump Control (AP4,AP5) The system includes two sets of the 90 KW of pressurized water pumps,used by one by one,usually only one water pump work.Two pumps were used to control two counters AP4,AP5 to drive,in order to protect motors and pumps to prevent the commencement of the outside world pulling low voltage power grids are driven by soft-start.Before the commencement of Control,and related technical personnel must be read in detail soft-start manual,so as to avoid the pumps and control cabinet soft start for the damage.First of all check into the three-phase power lines and electrical lines,and whether the specifications Chuxian then good,then check each power line and whether the insulation good,accurate completion of inspections after a cabinet control on the QF15,QF16 or QF17,QF18 Breaker .The voltage control Guishang check whether the instructions of the normal form,whether there is a lack of control Guishang power indicator light is bright,everything is normal,activated control cabinetBefore the commencement of Control should be soft-start the manual set up the appropriate parameters,activated by pressing Control AP4 counters or XK2 on the launch button SB6 or SB20,now control cabinet or XK2 on the work of light (H10 or H28) - Soft-start that began with the work,because there is a soft-start for start-up time (at the scene based on actual user condition,start-up time can be amended as appropriate),the output voltage is slowly rising,the motor speed is gradually rising,water pressure is Gradually increased,and therefore little impact on the grid,water pipe network is better protected.When the soft-start time after the bypass control Guishang indicator (H8)-that started finished