Troubleshooting
11.00 | EZN | Assembly and Operating Manual | en | 389068
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7 Troubleshooting
7.1 Behavior in case of product malfunctions
7.1.1 Product does not move
Possible cause
Corrective action
Spindle defective.
Open the product cover (cable connection) and
attempt to move it. If the shaft now rotates but
the jaws do not move, then the spindle is
damaged.
The product can only be repaired at the factory!
Send the product to SCHUNK with a repair order.
Motor connected incorrectly.
Check connections on the motor.
7.1.2 Gripping force gets weaker
Possible cause
Corrective action
dirt deposits
Clean and if necessary re-lubricate.
7.1.3 Product does not execute a complete stroke
Possible cause
Corrective action
Dirt deposits between basic jaws and
guidance.
Clean and if necessary re-lubricate.
7.1.4 Product opens or closes jerkily
Possible cause
Corrective action
dirt deposits
Clean and if necessary re-lubricate.
7.1.5 Motor rotates but does not move gripper
Possible cause
Corrective action
Fingers are mechanically jammed.
Check demands on eveness.
Check whether the adapter plate is stepped (only
in the case of lateral attachment).
7.1.6 The module's motor is not turning
Possible cause
Corrective action
Defective motor cables.
Check winding resistances:
Motor cables to each other: approx 2.2 Ω
Resolver cables:
red/white to yellow/white: 24 - 48 Ω
yellow to blue: 56 - 68 Ω
black to red: 56 - 68 Ω
