emWEB-7 (
Hardware Manual
)
•
Installation
4 - 13
Rev. 1.1
© Janz Tec AG
4.2.1
DC main power supply
The Power unit (figure 3) is energizing all internal components, the display and its backlight. Thereby
the power supply can vary in between 9 to 32 VDC. The emWEB-7 has a power dissipation with less
than 9 W. Before connecting the DC main power supply the protective bonding conductor (PE) must
be connected.
The power connector is included in delivery. The assignment of this connector is shown in figure 4 and
table 2.
Pin
Description
1
+ 9..32 VDC
2
NC, do not connect
3
GND
figure 4: Power connector
table 2: Power connector assignment
4.2.2
Universal serial bus - USB
The USB port can be used to connect an USB
The length of USB cable must not exceed 5 m.
4.2.3
Display
The panel is built as a thin film transistor liquid crystal display TFT-LCD with a diagonal screen of 7.0
’’
and up to 16.7M colours.
Description
Specification
Display area
153.6 x 90.0 mm
Number of dots
1024x3 (H) x 600 (V) (RGB vertical stripe)
Brightness
400 (Cd/m²) typ.
Viewing angles
-60° to 60° (H), -60° to 60° (V) typ.
Contrast
600 (typ.)
Backlight
LED
table 3: Display specifications
1
2
3
