D3-DA 3xx/x
Technical data
Project engineering manual V1.07
97
© KEBA
●
It must be guaranteed with appropriate measures, that the power supply
conforms to the overvoltage category II (IEC 60664-1). Overvoltage
must be limited to values < 2.5 kV phase-phase and phase-ground.
●
If safe electrical isolation (according to EN61880-5-1) is required e.g. for
control interface, it must be realized outside of the module or the module
may not be run directly on mains (e.g. on a isolating transformer with
secondary earthed star point).
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A performance reduction must be considered (1 % per 100 m, starting at
1,000 m over NN).
Information
The climatic conditions are valid for the device. Therefore they must be
complied also in the control cabinet.
12.7
Safe digital inputs
Quantity:
4
Type:
Type 1 (to EN 61131-2)
Nominal voltage:
24 V DC PELV
Input current:
Max. 15 mA
Low-level range:
-3 V DC to +5 V DC
High-level range:
+15 V DC to +30 V DC
Electrical isolated:
Yes
Cross-circuit detection:
Yes, via test outputs
OSSD compatible:
Yes
*)
Effect by incorrectly connected inputs:
Potential defect
*)
OSSD (Output Signal Switching Device) Test pulse, which should be fil-
tered, must get the following specifications:
●
Duration of the test pulses must be ≤ 0.75 ms.
●
Repetation rate must be ≥ 30 ms.
●
The minimal difference of the test pulses between both channels must
be > 10 ms.
Caution
Duration of the test pulses between 0.75 ms and 2 ms results an unwanted
shutdown after unpredictable time. This information applies irrespective of
wheter the monitoring of external test pulses is switched off or on.
