Skip to content

Machines Problems Guides Ingredients

Machines Problems Guides Ingredients

Search real manufacturing machine problems and get clear, step-by-step answers: causes, fixes, checks and prevention for capsule filling, blending, bottling and more.

Explore

Machines
Problems
Guides
Ingredients

Good to know

Answers here are general guidance. Always follow your own site procedures, the machine manual and your safety rules — isolate and lock out before working on any machine.

© 2026 Dhanushka Kariyawasam. All rights reserved.

PLC Output Failure — Capsule Filling · Ask Dhanu

Machines Capsule Filling Electrical, PLC, Sensors & Safety Alarms

Problem & answerH-09

PLC Output Failure

Likely causes

Output module failure
Relay failure
Wiring damage

How to fix it

1Verify the PLC output signal.
2Check the output relay.
3Inspect wiring to the device.
4Replace a faulty output module if necessary.

It is fixed when

The controlled device responds correctly to the PLC command.

Stop it coming back

Inspect output modules during preventive maintenance.

Did this solve the problem?

Points to inspect

Output module
Relay
Wiring

More in Electrical, PLC, Sensors & Safety Alarms

H-01Power Failure
H-02Circuit Breaker Tripped
H-03Fuse Blown
H-04Emergency Stop Activated
H-05Safety Door Open Alarm
H-06PLC Alarm Active
H-07Automatic Pause Keeps Triggering
H-08PLC Input Signal Failure

H-10PLC Communication Error

H-11HMI Screen Not Responding

H-12Photoelectric Sensor Failure

H-13Proximity Sensor Failure

H-14Encoder Failure

H-15Inverter (VFD) Fault

H-16Loose Electrical Connection

H-17Control Panel Overheating

H-18Ground Fault Detected

General guidance only. Follow your site procedures and the machine manual, and isolate the machine before any work on it.