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一台HS-200BZ型实验室杯型砂轮自动磨样机砂轮转动正常,磨样机构水平移动也正常,但砂轮磨头始终不能上下移动。检查上下进给机械部分正常无卡阻,但是通电后步进电机始终不工作。在检查电控部分时发现,步进电机驱动器(MS-2HO-90M)无55V交流供电电源,但供电变压器本身输出55V电压正常,最后确认是保护部分UF11熔断器发生断路。在更换之后试运行,磨样机恢复正常。
A HS-200BZ laboratory cup grinding wheel automatic grinding mill wheel rotation is normal, horizontal movement of the grinding sample body is normal, but the grinding wheel grinding head can not always move up and down. Check the upper and lower feed mechanical part of the normal no jamming, but after the stepper motor power is always not working. Check the electronic control part found that stepper motor driver (MS-2HO-90M) no 55V AC power supply, but the power supply transformer output voltage of 55V normal, the final confirmation is the protection part of the UF11 fuse open circuit. Trial operation after replacement, grinding prototype returned to normal.