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故障现象开机,报Shutter,束光器能进盒,但机架无法锁定,无法出线,需重新启动多次才能成功。故障分析与检修根据错误提示(Shutter),检查束光器,其运行正常,排除该故障可能。再根据机架不能锁定这一现象来排除故障,拆开机架后盖,发现开机不正常时主控板(电源)灯均不亮,其他机架旋转控制板上指示灯闪烁(自检时全亮),接口板±5 V,±15 V,24 V指示灯闪烁,220 V指示灯正常。测绘电路图,根据电路图检测发现开机不正常时,主控接触器k1、k2不吸合,接触器线圈控制电压仅有8
Symptom Boot, reported Shutter, beam device into the box, but the rack can not be locked, can not qualify, need to restart several times to succeed. Fault Analysis and Troubleshooting According to the error message (Shutter), check the light beam, its operation is normal, ruled out the fault may be. Then according to the rack can not lock this phenomenon to troubleshoot, open the rear cover of the chassis and found that the main control board (power) lights are not lit when the boot is not normal, the other rack rotation control panel flashing lights (self-test Full bright). The interface board is ± 5 V, ± 15 V, the 24 V indicator flashes, and the 220 V indicator is OK. Mapping circuit, according to the circuit diagram found abnormal boot, the main contactor k1, k2 do not pull the contactor coil control voltage is only 8