1、如果河北升降貨梯http://www.qdysj.net/電源從高電位端出來(lái)后先經(jīng)過(guò)部分控制開關(guān)到河北升降貨梯制動(dòng)器線圈，然后再經(jīng)部分控制開關(guān)回到零線，則會(huì)有安全問(wèn)題。因?yàn)椋藭r(shí)如果抱閘線圈低電位處因絕緣損壞而對(duì)地時(shí)，后面的開關(guān)會(huì)被短接而失效。
If Shandong Huoti first power from the high potential side out after a part of the control switch to Shandong Huoti brake coil, and then switch back to partially control the zero line, then there will be security problems. Because, this

time due to insulation damage on the ground, the back of the switch will be short and fail if the brake coil at low potential.

2、如果河北升降貨梯http://www.qdysj.net/電源從高電位端出來(lái)后直接經(jīng)過(guò)河北升降貨梯制動(dòng)器線圈，再經(jīng)各控制開關(guān)回到零線，則問(wèn)題會(huì)更大。此時(shí)，如果河北升降貨梯抱閘線圈低電位處因絕緣損壞而對(duì)地時(shí)，制動(dòng)器上的所有開關(guān)將全部失效，制動(dòng)器會(huì)因直接通電而自動(dòng)開閘，制動(dòng)器抱閘無(wú)法合閘制動(dòng)。
Directly through Shandong, Shandong cargo lifter lift if the power from the high potential side out after the freight elevator brake coil, and then switch back to the zero line of the control, then the problem will be even greater. At

this point, if the brake coil Shandong cargo lifter at a low potential to cause damage to the insulation, all the switches on the brake will all fail, the brake automatically because of direct electrical gate, brake brake brake can not be closing.