For more information visit:
www.EatonElectrical.com
Programming wiring
MN05013005E
196
Function of the frequency counter function block
Figure 103: Signal diagram of frequency counter
1: counter input I1 to I4
2: upper setpoint value
>SH
3: lower setpoint value
>SL
4: enable CF..EN
5: contact (make contact) CF..OF upper setpoint value exceeded
6: contact (make contact) CF..FB lower setpoint value undershot
7: actual value equal to zero CF..ZE
t
g
: gate time for the frequency measurement
1
2
3
4
t
g
t
g
t
g
t
g
t
g
t
g
t
g
t
g
5
6
7