Durant E4148794 Mode D'emploi page 5

Input Polarity (see page 37)
Inputs A and B (pins 15 and 14) can be sink or source dc inputs, depending on the way
they are wired, with respect to their Common input (pin 13), as shown in the examples
below, and on pages 37 and 38. Pin 1 must always be connected as shown.
The opto-isolated inputs K and R (pins 5 and 4) can be sink or source ac or dc inputs,
depending on the way they are wired, with respect to their Common input (pin 3), as
shown in the examples below and on pages 37 and 38.
Only K and R are isolated from the supply pins.
Sink Inputs (NPN)
13
14
B
15 A
1
–V
Note: Common Pins 3 and 13
These pins must always be correctly connected for their inputs to work.
For dc signals, to +V or -V, as shown in the examples above and on page 37.
For ac signals (5/4/3 only), as shown in example 4 on page 37.
Count Direction (see page 36)
In all modes, count direction is dependent on Reset mode (see Programming) and
Sink/Source wiring, as shown in the diagrams. The count direction and the edges that
trigger the count are shown by the arrows.
For unidirectional mode, the count directions obtained with input B open-circuit are
marked *.
Note:
The count direction must not change in less than 25 µs, or the unit may not operate
correctly.
Relays (see page 38)
The P2 relay can be programmed to be normally-open or normally-closed. In the case of
the P1 relay, contact P1A can be programmed to be normally-open or normally-closed.
P1B will always be the opposite of P1A.
The relays can be programmed independently to operate in pulsed or latched mode. In
pulsed mode (P1 relay: Auto Reset Off only) the relay will operate for a length of time set
by the program. In latched mode the relay will operate, and stay in that condition until
reset.
The relays can be programmed to revert to a known safe state in the event of a power
failure or on entering program mode. The alternatives are:
Current - the contacts will remain in the same state as before the event;
Reset - the contacts will revert to their normal, unoperated state;
3
4
R
5
K
–V
Source Inputs (PNP)
15
A
14
B
13
1
–V
5
4
3
–V
K
R
5