11.90 5 Maintenance
5.1 Operating data
5 Maintenance

5.1 Operating data

Humidity content
to DIN 40040 F
Air pressure 860 to 1080 hPa
Shockproof, dustproof and waterproof
to DIN 40050:
– Operator panel IP 54
– External machine control panel IP 54

5.2 Handling the modules

Modules/components carrying this warning symbol (yellow
hand on a black triangle, with stripe through) are suscep-
tible to electrostatic discharge.
•Electronics modules must not be touched unless it is absolutely vital for work to
be done.
•Before touching a module, any static in the body must be discharged. The
easiest way to do this is by touching a conductive, earthed part of the structure
(e.g. bare metal parts of the cubicle, socket earth contact).
•Modules should not be brought into contact with materials that are good
insulators (e.g. plastic foil, insulated desk tops, clothing made from synthetic
fibres).
•Modules should only be laid on conductive surfaces.
•Modules should only be removed or replaced with the power off.
Therefore, please pay attention to the following guidelines:
© Siemens AG 1990 All Rights Reserved 6ZB5 410-0EP02 5-1
SINUMERIK 810T, GA3 (BN)