An additional check can be made by removing the enclosure cover and momentarily placing a jumper (or 20,000 ohm resistor) across terminals 9-10 on the control.

• 通过拆卸外壳盖板，并立即将跨接线（或20,000欧姆电阻）并联在控制装置的接线端子9-10上，能够再次进行测试。