Eaton easySafety, Руководство пользователя, Страница: 226 / 695

Standard function blocks
222
02/16 MN05013001Z EN
Legends to figure 86:
1: Counter coil C..C_
2: Upper setpoint value >SH
3: Start value >SV.
4: Lower setpoint value >SL.
5: Counting direction, coil C..D_
6: Transfer start value, coil C..SE.
7: Reset coil C..RE
8: Contact (make contact) C..OF: Upper limit setpoint reached,
exceeded
9: Contact (make contact) C..FB lower limit setpoint reached,
undershot
10: Actual value equal to zero.
11: Out of value range
• Range A:
– The counter range has the value zero.
– The contacts C..ZE (actual value equal to zero) and C..FB
(lower setpoint value undershot) are active.
– The counter receives pulses and increases the actual value.
– C..ZE drops out as well as C..FB after the lower setpoint value
is reached.
• Range B:
– The counter relay counts upwards and reaches the upper
setpoint value. The “upper setpoint value reached” contact
C..OF becomes active.
• Range C:
– The coil C..SE is briefly actuated and the actual value is set to
the start value. The contacts go to the respective position.
• Range D:
– The counting direction coil C..D_ is actuated. If counting
pulses are present, downward counting is initiated.
– If the lower setpoint value is undershot, the contact C..FB
becomes active.
• Range E:
– The reset coil C..RE is activated. The actual value is set to zero.
– The contact C..ZE is active.
• Range F:
– The actual value goes outside the value range of the counter
relay.
– The contacts become active according to the direction of the
values (positive or negative).