Device Maintenance And Repair; General Information On Maintenance And Servicing; Cleaning The Device - Siemens SIMATIC PRO Extension Units KP Series Operating Instructions Manual

Device maintenance and repair

5.1

General information on maintenance and servicing

Observe the following when servicing and repairing protective features such as ground
circuits, overvoltage protection components or batteries:
● Observe the maintenance and replacement intervals specified by the respective
manufacturer for all system components.
● Replace system components, including cables, fuses and batteries only with equivalent
components approved by the respective manufacturer.
5.2

Cleaning the device

The device is designed for low-maintenance operation. However, it is still necessary to clean
the device regularly.
Clean the entire device thoroughly:
● Before commissioning
● As required, depending on the degree of contamination
● At regular intervals (according to an internal cleaning plan)
Unwanted reactions when cleaning the device
You risk unintentional actuation of operator controls if you clean the device while it is
switched on.
You may possibly trigger unwanted actions of the device or controller. that are liable to
cause personal injury or damage to the machinery.
Before you start cleaning, switch off the power supply of the Extension Unit and the power
supply of the devices that are controlled by the operator controls of the Extension Unit.
Also see the cleaning information in the operating instructions of the PRO device to which
the Extension Unit is connected.
Cleaning agents
NOTICE
Damage to the device due to impermissible cleaning agents
Impermissible and unsuitable cleaning agents may cause damage to the HMI device.
Use dish soap or foaming screen cleaner only as cleaning agents.
Do not use aggressive solvents or scouring powder.
Extension Units KPxx
Operating Instructions, 05/2019, A5E43600360-AC
CAUTION
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