Instron DX Series System Concepts Manual

47
Frame
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11
• Software posts an error message
stating “Sensor Loop Failure”
Control rate for the control mode
selected is too fast
The frame should not be operated in
load/stress control during the yield
portion of a test. Select position or
strain control and restart test, or contact
your local Instron Services department
as directed on page 13.
Load cell cable could be
damaged or have loose
connections
Check load cell cable for damage and
check that connections are secure
12
• Position display does not change
when the hydraulic cylinder is
moving
• The hydraulic cylinder stops
inadvertently during a test or during
manual adjustment
• Software indicates a “Hard Stop” or
other error for no apparent reason
Disconnect switch not ON ( | ) or
customer’s power supply not ON
• Turn the disconnect switch to ON
• Turn the customer’s power supply to
ON
Set speed exceeds the load
frame maximum speed
Reduce the set speed and enable frame
Position encoder not functioning
or damaged
Check operation of position encoder:
1. Enable the frame.
2. Start the HPS.
3. Manually jog the hydraulic cylinder,
verify that it is moving and watch
the position display to see if it reads
the change in height.
4. If after 3 seconds the HPS shuts
down, then the encoder is not
functioning; contact your local
Instron Services department as
directed on page 13.
13
• Software indicates a “Hard Stop” or
other error when running a test
under strain control
Strain instrument may not be
working properly
• Check the instrument for proper
operation
• Check that the zero pin was removed
from the instrument
Table 5. Troubleshooting the DX system. (Continued)
No. Possible Indications Possible Problem Solution

Instron DX Series Specifications

General

Brand	Instron
Model	DX Series
Category	Test Equipment
Language	English