User manual

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Wiring with EZ
MN05013003E118
Example
The maximum cycle time is t
c
= 4000 µs (4 ms).
Function of the counter function relay
:
Figure 54: Signal diagram
1: Count pulses at the count coil CC…
2: Count direction, direction coil DC…
3: Reset signal at the reset coil RC…
4: Counter setpoint (the setpoint in the figure = 6)
5: actual value of the counter
6: contact of the counter, C
• Range A: The relay contact of counter
C with setpoint value
6 switches when the actual value is 6.
• Range B: If the counting direction is reversed B, the contact is
reset when the actual value is 5.
• Range C: Without count pulses the current actual value is
retained.
• Range D: The reset coil resets the counter to 0.
f
c
=
1
× 0.8 = 100 Hz
2 × 4 ms
on
on
1
2
on
3
on
6
BACD
4
0
1
2
3
4
5
6
7
8
5
EZ500_700.book Page 118 Tuesday, May 3, 2005 5:15 PM