Special functions of the CP-1004 module binary inputs - Foxtrot basic modules / Teco Wiki

Foxtrot basic modules 17.03.2020 18:08 17.03.2020 18:08

The DI0, DI1 (counter 1) and the DI2, DI3 (counter 2) binary inputs can be set - in addition to the function of standard inputs - to one of the special functions, allowing the connection of a positioning incremental encoder, application of fast counters, measuring the period and phase shift (e.g. for the phase-locking of a generator in small hydro plants ), etc.

Individual functions are described in detail in the documentation TXV 004 10, here is a Table with an overview of examples of specific terminal connections.

Tab. 1 Counter 1

mode	function	DI0	DI1	DI2	DI3	An example
00	The counter is off (inputs DI0 and DI1 – standard binary inputs)	DI0	DI1	According to counter 2
01	One unidirectional counter	CI1	-	According to counter 2		Fig. 1
02	Two unidirectional counters	CI1	CI2	According to counter 2		Fig. 2
04	Bidirectional counter	UP1	DN1	According to counter 2
05	Counter with direction control	CI1	U/D1	According to counter 2
08	Incremental encoder (without zeroing and capturing)	V1	G1	According to counter 2		Fig. 3
14	Bidirectional counter with zeroing and capturing	UP	DN	RES	MEM
15	Counter with direction control with zeroing and capturing	CI	U/D	RES	MEM
18	Incremental encoder with zeroing and capturing	V	G	NI	MD	Fig. 4
1C	Pulse length measurement	IN1	IN2	IN3	IN4
1D	Period and phase shift measurement	PER1	PER2	PER3	PER4

Tab. 2 Counter 2

mode	function	DI0	DI1	DI2	DI3	An example
00	The counter is off (inputs DI0 and DI1 – standard binary inputs)	According to counter 1		DI2	DI3
01	One unidirectional counter	According to counter 1		CI2	-	Fig. 1
02	Two unidirectional counters	According to counter 1		CI3	CI4	Fig. 2
04	Bidirectional counter	According to counter 1		UP2	DN2
05	Counter with direction control	According to counter 1		CI2	U/D2
08	Incremental encoder (without zeroing and capturing)	According to counter 1		V2	G2	Fig. 3

Tab. 3 The DI0 ÷ D I3 counter inputs

Max. Input frequency	5 kHz
The minimum width of the captured pulse	50 μs
Incremental sensor:
Max. frequency of symmetric signal V, G	5 kHz
Pulse width (V, G, NI, MD)	min. 50 µs
Pulse length, period and phase shift measurement:
Input frequency	0.1 ÷ 5,000 Hz
Pulse width	50 ÷ 10,000,000 µs

Fig. 1 An example of connecting a sensor with a pulse output (for counter 1 and counter 2)

Wiring notes:

The inputs are implemented with a common terminal - (N.B.: the GND terminal!). The terminal is galvanically connected with the negative power supply terminal and the signal ground of the TCL2, CIB and CH1 interface).
The inputs require a connection of the sensor with the pulse output (eliminating flickers).

Fig. 2 An example of connecting a sensor with the pulse output (for counters 1 up to counter 4)

Wiring notes:

The inputs are implemented with a common terminal - (N.B.: the GND terminal!). The terminal is galvanically connected with the negative power supply terminal and the signal ground of interface TCL2, CIB and CH1).
The inputs require a connection of the sensor with the pulse output (with avoiding flickers).

Fig. 3 An example of connecting incremental encoders (counter 1 and counter 2)

Wiring notes:

The inputs are implemented with a common terminal - (N.B.: the GND terminal!). The terminal is galvanically connected with the negative power supply terminal and the signal ground of interface TCL2, CIB and CH1).
The module is designed to connect incremental encoders (rotary, linear) with an output of 24 V (it cannot be connected to sensors with 5 V output!). In this mode, only both tracks of the sensor are captured. A zero pulse and the measuring probe (the capture input) cannot be evaluated.

Fig. 4 An example of connecting an incremental encoder with zeroing and capturing

Wiring notes:

The inputs are implemented with a common terminal - (N.B.: the GND terminal!). The terminal is galvanically connected with the negative power supply terminal and the signal ground of interface TCL2, CIB and CH1).
The module is designed to connect incremental encoders (rotary, linear) with an output of 24 V (it cannot be connected to sensors with 5 V output!). In this mode, both tracks, zero pulse and the measurement probe of the connected sensor are captured.