Data sheet signo721

23/03/2010

page 2 von 5

Preset Counter

signo 721

signo 721

Amplitude

threshold

< 2 V and > 8 V or < 1 V and > 4 V at TTL-level

amplitude max. 40 VDC

Active edge

programmable, positive for PNP-input,

negativ for NPN-input

Pulse form

any desired form (at max. frequency square 1:1)

Input resistance

approx 10 kOhm

Clock frequency

max. 60 kHz (TTL 15 kHz): single-channel counting

max. 60 kHz (TTL 15 kHz): Differential counting and totalizing

channel (A+B together)

max. 30 kHz (TTL 15 kHz): phase discriminator

single or double evaluation

max. 15 kHz (TTL 15 kHz): phase discriminator, quadruple

evaluation

damped (attenuated) 30 Hz

Pulse duration min. 17 ms ( 30 Hz); 8 µs (60 kHz)

Prescaler

0,0001 - 9,9999

Reset

manual reset via keyboard,

external reset via static or dynamic programming; pulse length

min. 5 ms,

automatic reset after reaching Preselect 2,

(No pulse losses at max. counter frequency due to automatic reset

function).

via application input (programmable)

Display and Preset

Range

- 99 999 up to + 99 999

Signal times

0,01 s to 599,99 s or bistable programming;

tolerance + 10 ms

Relay Output

Preset 1 und 2

Change-over contact max.: 250 VAC / 30 VDC / 5 A

Change-over contact min.: 5 VAC / 5 VDC / 10 mA

delay < 10 ms

Transistor Output

Preset 1 und 2

PNP-output 12 - 30 VDC max. 50 mA for DC supply

12 - 24 VDC max. 30 mA for AC supply

12 - 24 VDC max. 50 mA for AC with switching

power supply*"

Application Output

PNP output 12 - 30 VDC max. 20 mA at DC supply

12 - 24 VDC max. 20 mA at AC supply

Counter mode of

operation Input A,B

Unidirectional; adding or subtracting; directional input;

Differential operation, add / sub; Summation (Totalizing) add /

add;

Phase discriminator single, double or quadruple evaluation

Control Input

Reset; Gate, Hold

Application Input/

Output

Output Prescaler-out, Direction-out

Input: Reset, Gate, Keylock, Hold

COUNTER