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MAX22216

		
	
				

			

									
					    shrpoorlow
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 26, 2025 
				
			
			
		
    
		
		                    	    
    
        	    
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                The user is experiencing a HHF fault when using the Max22216 to control an electromagnetic valve in CDR mode with VM at 24V and a 240Ω resistor. The final answer suggests checking if the current ever reaches 90mA and adjusting both Kp and Ki parameters, as the issue may be due to inappropriate PI settings.
                        	    
    
                
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    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  MAX22216 
    
    		        		    		    
    
		    		    
		    			
    
			    
    我在使用Max22216控制电磁阀时，VM为24V，电磁阀电阻为240欧，我使用CDR模式进行闭环控制，我设置DC_L2H为90mA，DC_H为60mA，最终电流稳定在60mA，但会产生一个故障告警HHF，调大L2H_TIME或者改大kp，仍然报这个错误，调小DC_L2H的值，问题依旧存在。
    
			
    
			
									
		                             
                        

    
    
                                            
                 Datasheet/Specs
                
                                                    
                 MAX22216
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jul 8, 2025 1:54 AM
            
            
						
			            		
      
		
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      我重新研究了一下您的问题。 在CDR模式下这个报错，就是没有达到您设置的90mA。您可以实际检测一下电流是否曾经到达过， 对于电流的调整可能需要您同时调整Kp和Ki， 对于CDR模式，DCL2H和DCH这两个都是CDR，所以我认为可能就是PI的参数不是很合适导致的。 
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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