A common fault analysis of universal testing machine

Common failure analysis of universal material testing machine universal testing machine is in use after a period of time, more or less will appear a few small fault, but if there is a small action, such as the supplier of the technical personnel on-site maintenance, and is a waste of time, here to share some common troubleshooting methods: universal material testing machine, 

The loading rate is not stable. 

Causes: 

1, the control parameter setting is not ideal, 

2, sensor sampling is not stable. 

Solution: 

1, under the guidance of debugging personnel set control parameters, 

2, good shielding wire. 

Second, click on the 'valve port initialization' digital servo valve no action, not to whine.

Causes: 

1, the measurement and control box power switch did not open; 

2, line not connected. 

Solution: 

1, open the switch control box, 

2, check whether the line is even better. 

Third, no normal a/d signal is detected. 

Causes: 

1, oral communication failures, 

2, measurement and control board failure. 

Solution: 

1, check the serial port connection, and confirm the connection, 

2, change control board. 

Fourth, cannot access control software. 

Causes: 

1, program error, 

2, database error. 

Solution: 

1, increase the amount of open loop control, digital servo valve 

2, apart, kerosene or gas flush valve core and valve body. 

Five, click 'run' button, the pistons didn't rise. 

Reason: 

1, the open loop control quantity is too small, 

2, valve core. 

Solution: 

1, reset well tubing, 

2, and increase the amount of open loop control. 

Six, click 'run' button after the piston rises slowly. 

Causes: 

1, tubing leaking joint, 

2, open loop control quantity is not enough. 

Solution: 

1, reset well tubing, 

2, and increase the amount of open loop control. 

Seven, universal testing machine cannot be loaded into the maximum load. 

Reason: 

the tubing joint leakage. 

Solution: 

to connect the tubing.

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