
Manual, Control/Signal Module, Ethernet, SC29
Document #9620-20-C-SC29-04
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 • Tel: 919.772.0115 • Fax: 919.772.8259 • www.ati-ia.com
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Table 6.1—Troubleshooting
Symptom Possible Cause Correction
Sensors not
operating properly.
Sensor cables are damaged or
incorrectly connected.
Verify that cables are connected correctly and
not damaged, replace If damaged. Refer to the
Troubleshooting Section of the Tool Changer
manual.
Tool plate is not secured properly or
debris is trapped between surfaces.
Ensure that the Tool plate is securely held to the
Master plate, that nothing is trapped between
their surfaces.
Air trapped in the Unlock (U) air port.
Ensure that there is no air trapped in the
Unlock (U) air port. Refer to Air and Valve
adapter section for pneumatic specication and
requirements.
Sensor is malfunctioning. Verify the sensors are functioning properly. Refer
to the Tool Changer manual.
Loss of
Communication.
Damaged signal cabling. Check/Replace signal cabling upstream and
downstream of the Tool Changer modules.
Worn or damaged contact pins.
Inspect module contact pins for debris/wear/
damage. Refer to Section 5.1—Pin Block
Inspection and Cleaning. V-ring seal damaged
and allow debris in the contact pins. Replace
V-ring seal, refer to Section 6.2.1—V-ring Seal
Replacement.
Product upstream and downstream of
the Tool Changer failed or damaged.
Check product upstream and downstream of the
Tool Changer for failure. This failure can “appear”
to be caused by the Tool Changer or affect Tool
Changer performance.
Power or signal(s)
intermittently
functioning or
malfunctioning.
Object trapped between modules. Remove the object, then re‑attempt coupling.
Servo module contact pin
contamination.
Ensure that the spring pins on the Master side
can move freely and are not bound by debris.
Clean the spring pins to restore free operation.
Clean the Tool side module contacts. Refer to
Section 5.1—Pin Block Inspection and Cleaning.
Inspect the seal, replace If damaged. Refer to
Section 6.2.1—V-ring Seal Replacement.
Contact pin separation due to
insufcient air supply to the Tool
Changer.
Ensure that the Tool Changer has proper
pneumatic connections and air is supplied
to proper specication. Refer to the Tool
Changer section of this manual for air supply
requirements.
Coupling/uncoupling Tool Changer
under load.
Revise operating procedures to only couple/
uncouple with power disconnected and
discharged. Field replacement of the module
contacts is not possible.
Cable damage: pinched, torn, or
fatigued cables.
Examine cables for damage, perform a continuity
test on the cables and replace any bad cables.
Servo module damaged. Refer to Section 6.1.1—Servo Module, Drive, or
Motor Troubleshooting Procedure.
Drive or motor damaged. Refer to Section 6.1.1—Servo Module, Drive, or
Motor Troubleshooting Procedure.