User's Manual l TQMaRZG2x UM 0100 l © 2021, TQ-Systems GmbH
Page 38
6.
SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS
6.1
EMC
The TQMaRZG2x was developed according to the requirements of electromagnetic compatibility (EMC). Depending on the
target system, anti-interference measures may still be necessary to guarantee the adherence to the limits for the overall system.
The following measures are recommended:
•
Robust ground planes (adequate ground planes) on the printed circuit board.
•
A sufficient number of blocking capacitors in all supply voltages.
•
Fast or permanently clocked lines (e.g., clock signals) should be kept short;
avoid interference of other signals by distance and/or shielding,
also pay attention to frequencies and signal rise times.
•
Filtering of all signals, which can be connected externally
(also "slow signals" and DC can radiate RF indirectly).
•
Direct signal routing without stubs
6.2
ESD
In order to avoid interspersion on the signal path from the input to the protection circuit in the system, the protection against
electrostatic discharge should be arranged directly at the inputs of a system. As these measures always have to be implemented
on the carrier board, no special preventive measures were planned on the TQMaRZG2x.
The following measures are recommended for a carrier board:
•
Generally applicable:
Shielding of inputs (shielding connected well to ground / housing on both ends)
•
Supply voltages:
Suppressor diodes
•
Slow signals:
RC filtering, Zener diodes
•
Fast signals:
Protection components, e.g., suppressor diode arrays
6.3
Shock and Vibration
Table 41:
Shock resistance
Parameter
Details
Shock
According to DIN EN 60068-2-27
Shock form
Half sine
Acceleration
30 g
Duration
10 msec
Number of shocks
3 shocks per direction
Excitation axes
6X, 6Y, 6Z
Table 42:
Vibration resistance
Parameter
Details
Oscillation, sinusoidal
According to DIN EN 60068-2-6
Frequency ranges
2 ~ 9 Hz, 9 ~ 200 Hz, 200 ~ 500 Hz
Wobble rate
1.0 octaves / min
Excitation axes
X– Y – Z axis
Acceleration
2 Hz to
9 Hz:
3.5
m
/
s²
9 Hz to 200 Hz:
10
m
/
s²
200 Hz to 500 Hz:
15
m
/
s²
