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1756-L65
1756-L65
全新风热泵型屋顶式空调机已经在某单位可靠运行一年以上，满足用户温、湿度控制要求，用户反映良好，机组运行至今还没有出现任何不良故障。全新风热泵型屋顶式空调机**特点是能向被控环境提供新鲜的舒适空气。对于不同季节，使用不同运行模式，既**又节能。此类空调机在冶金、化工及机电等行业将得到广泛应用，具有广阔的应用前景。变频器运行监视的PLC语句表程序示例及注释
LDM8000运行监视；
EXTRK10K0H6FD0EXTRK10：运行监视指令；K0：站号0；H6F：频率代码(见表1)；D0：PLC读取地址(数据寄存器)。
指令解释：PLC一直监视站号为0的变频器的转速(频率)。
(4)变频器运行控制的PLC语句表程序示例及注释
LDX0运行指令由X0输入；
SETM0置位M0辅助继电器；
LDM0
EXTRK11K0HFAH02EXTRK11：运行控制指令；K0：站号0；HFA：运行指令(见表1)；H02：正转指令(见表1)。
ANDM8029指令执行结束；
RSTM0复位M0辅助继电器。
指令解释：PLC向站号为0的变频器发出正转指令。
(5)变频器参数读取的PLC语句表程序示例及注释
LDX3参数读取指令由X3输入；
SETM2置位M2辅助继电器；
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