Epec 5050 - DI;Pi_Type002

5050 CONTROL UNIT
Technical Manual & Cabling Instructions
29 / 92
19.10.2012
5050 / MAN000539
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4.3.2 DI/PI_Type002
• This type of pin is a ground referenced input (DI) including a pulse counting (PI) feature.
• Pulse inputs can be used as a 1 or 2 channel pulse counter and they have a possibility for
reset pulse. Possible software channels and pairs are listed in section
SW channels for
Pulse Inputs.
• This type of pin has no configurable features
Electrical characteristics
Symbol Parameter Conditions Min Max Units
R
I
Input Resistance
typ. 12,4
kΩ
V
IH
Input High Voltage level
(Note 1)
6,2
50
V
V
IL
Input Low Voltage level
0,0
4,1
V
V
I-max
Max Input voltage
(Note 6)
-5
60
V
f
I
Input Frequency
(normal digital input)
tC= 4ms (Note 2,3,4,7) 250 Hz
Input Frequency
(pulse counting)
(Note 5,8) 5 20000 Hz
t
I
Input Pulse Width
(pulse counting)
(Note 5) 0,025 250 ms
C
I
Input pin capacitance
typ. 1
nF
Note 1: Exceeding the max values might cause damage to input.
Note 2: These parameters depend on software cycle time.
Note 3: Applies to inputs used as normal digital input. Violating this rating may lead to application
program not noticing all input state transitions.
Note 4: Pulse width must be greater that the software cycle time. For example with 50/50 pulse
ratio, the pulse frequency is 1 / (2*pulse width)
Note 5: Violating this rating may lead to system not recognizing all input state transitions.
Note 6: Overload conditions.
Note 7: tC denotes software cycle time.
Note 8: Max value can be reached by 2-98% pulse ration.
Functional block diagram
Other Information
Refer to section Connection Examples to see examples on how to connect some
external actuators or sensors when using this type of pin.