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Extended maintenance work
4.1 Overview
Components sensitive to electrostatic charge
Electrostatic sensitive devices are labeled with an appropriate symbol.
NOTICE
Electrostatic sensitive devices (ESD)
The device includes electrostatic sensitive devices. When you touch electrostatic sensitive
devices, you can destroy them through voltages that are far below the human perception
threshold.
When you open the device you must take appropriate ESD measures, for example:
• When handling electrostatic sensitive devices, make sure that persons, the workstation
• Discharge your body electrostatically before you take a measurement at a module. Do
• Avoid direct contact.
• As a general rule, do not touch electrostatic sensitive devices, except in the case of
• Hold the modules at their edge so that you do not touch the connector pins or conductor
4.1
Overview
This section describes the following extended maintenance work:
● Replacing the seal of the rear panel
You need service pack 2 with article number 6AV7675-1JD21-0AA0.
● Changing the mounting type, which means converting a device for stand mounting into a
device for support arm mounting and vice versa.
You need service pack 2 with article number 6AV7675-1JD20-0AA0.
Note
When you change the mounting type, you need the corresponding mounting kit for
mounting, see section "Accessories and spare parts (Page 23)".
● Only for devices with operator controls: Replacing defective operator controls in the
device front and LEDs
You need the corresponding spare parts, see section "Accessories and spare parts
(Page 23)".
10
and devices, tools and packaging used are properly grounded. This way you avoid static
charging.
so by touching grounded metallic parts. Always use grounded measuring instruments.
unavoidable maintenance work.
paths. This way, the discharge energy does not reach and damage the sensitive
components.
SIMATIC IPC277D/E 19" INOX PRO, SIMATIC IFP1900 INOX PRO
Service Manual, 11/2017, A5E35751762-AC
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