ABB CL Series, Applications Manual

Page: 198 / 428

Function blocks
195
1SVC 440 795 M1100
5: Enable of the counter CH…EN
6: Counting direction, coil CH…D
7: Accept preset actual value, coil CH..SE
8: Reset coil CH…RE
9: Contact (N/O) CH…OF upper setpoint value reached, exceeded
10: Contact (N/O) CH…FB lower setpoint value reached, undershot
11: Contact (N/O contact) CH…ZE actual value equal to zero
12: Out of value range
• Range A:
– The counter has the value zero.
– The contacts CH..ZE (actual value = zero) and CH..FB
(lower setpoint value undershot) are active.
– The counter receives counter values and increases the actual
value.
– C..ZE (or CH) drop out when f > 0 Hz and C..FB (or CH) after
the lower set value is reached.
• Range B:
– The counter counts upwards and reaches the upper setpoint
value. The contact “upper setpoint value” CH…OF becomes
active.
• Range C:
– The coil CH..SE is briefly actuated and the actual value is set
to the preset actual value. The contacts switch to the
appropriate position.
• Range D:
– The counting direction coil CH…D is actuated. If counting
pulses are present, downward count is initiated.
– If the lower setpoint value is undershot, the contact CH..FB
becomes active.
• Range E:
– The reset coil CH…RE is activated. The actual value is set to
zero.
– The contact CH…ZE is active.
• Range F:
– The actual value goes outside the value range of the counter.
– The contacts become active according to the direction of the
values (positive or negative).