Input Voltage And Current Specifications - Siemens SIMATIC TI505 User Manual

C.2 Input Specifications
Input Voltage
and Current
Specifications
High Speed Counter Encoder Module User Manual
The HSCE Module responds to input signals according to the specifications
listed in Table C-2 and shown in Figure C-1.
Table C-2 Input Voltage and Current Specifications
On Voltage
On Current
Off Voltage
Off Current
Current
(mA)
Note: In the transition region from 1.25 to 4 volts, the response of the module cannot be
determined. The inputs may be on or off. For the fastest and most reliable counting, the
input signal rise and fall times should be as short as possible.
4 to 28 VDC maximum
7 to 13 mA
Less than 1.25 VDC
Less than 100 A
ON
Transition region
Volts
Figure C-1 Input Specifications
Max
Min
Specifications C-3