当负载超过120%时，10秒后，IPS自动关闭输出；当负载恢复到额定负载后，IPS自动恢复正常工作。

IPS automatically shutdown if overload exceeds 120% of normal value for 10 seconds, IPS automatically resume work if overload comes to rated load.

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正常源每一相位的欠压传感：起始电压可在额定值85 - 100%的范围内调节；回动电压可在始动值75 - 98%的范围内调节。

Undervoltage Sensing for Each Phase of Normal Source: pickup voltage is adjustable form 85 to 100 percent of nominal, and dropout voltage is adjustable from 75 to 98 percent of pickup value.

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在额定风量使用条件下，可以正常使用1~2个月，即需更换过滤棉；

At the condition of rated air velocity, pre filter media can be used for 1 to 2 months.

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