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2.2
Components
2.3
Operating conditions
Temperatures
Relative humidity
Air gap/creepage distance
Atmospheric pressure
1070 073 826-101 (01.10) GB
Housing:
The anodized aluminum housing completely surrounds the
control panel and is equipped with cooling gill inside and
outside. This allows a passive cooling of the control panel
under the specified operating conditions (refer to section
2.3). It is screwed to the front panel.
Front panel:
The display, 2x3 membrane keys (navigation keys) and the
keypad with 3 control devices (CPS21T Version M) is fixed
on the front panel. After removing the covers and loosening
the screws, the display unit can be replaced (refer to sec-
tion 7.2.)
Handle:
On both left and right side of the front panel a handle bar is
fixed. For a user–friendly operation, there are cut–outs for
every 3 navigation keys (CPS21T Version M).
Suspension:
The complete CPS21T unit is prepared for the gallows
mounting (in this regard, refer to section 4.3).
All control panels are designed for continuous operation (24 hours/day). The
display backlight can be switched off (refer to page 3–3).
The following specifications apply unless otherwise indicated in the indivi-
dual sections:
Storage temperature
D CPS21T:
–20°C to +50°C
Ambient temperature
(for installation conditions described in Section 4)
D CPS21T:
+0°C to +45°C
Temperature fluctuations of up to 3°C per minute are permitted.
CAUTION
Excessive operating temperature!
Do not expose the housing of the CPS21T to direct sunlight or other
sources of heat radiation!
Climate class 3K3, as per EN 60529; condensation not permitted.
as per prEN50178 (11/96) at pollution level 2
To DIN 60204, when operating at altitudes up to 2000 m above sea level.
System overview control panels
2–3
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