Comet U0110, User Manual

Page: 59 / 74

IE-LGR-Uxxxx-16
59
Binary input configured for a dry contact or an open-
collector transistor:
Contact resistance for the „switched-on“ state:
< 10 kΩ
Contact resistance for the "switched-off" state:
> 2 MΩ
Excitation voltage: approx. 3 V
Minimum state duration necessary for latching the
state: 1s
Connection:
Pluggable terminal block, maximum wire cross section
1.5 mm
2
. The maximum cable length is 30 m. It is
recommended to use shielded cables.
CAUTION: The inputs are not galvanically isolated!
Recommended calibration interval:
2 years
U6841 _________________________________________
Measured values:
3 x current input (0
– 20) mA,
1 x binary input. This input can be configured to voltage
or a dry contact (with open collector transistor
acceptance).
This input can capture
connected/disconnected voltage status.
Range and input levels:
Current inputs:
Range: (0 to 20) mA DC
Accuracy: ± 20 uA
Input resistance: approx. 100 Ω
Minimum current: 0 mA (open circuit)
Maximum current: limited to approx. 40 mA
Binary input configured for voltage signal:
Input voltage for the „L“ level: < 0.8 V
(*)
Input voltage for the „H“ level: > 2 V
Minimum applicable voltage: 0 V
Maximum applicable voltage: +30 V DC
(*)
When the input is disconnected, the device will
measure the „L“ level.
Binary input configured for a dry contact or an open-
collector transistor:
Contact resistance for the „switched-on“ state:
< 10 kΩ