Eaton easyE4 series, Руководство пользователя

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6. Function blocks
6.1 Manufacturer function blocks
3: Reset coil T…RE
4: Switching contact (N/O contact) T…Q1
Range A: The relay flashes for as long as the trigger coil is activated.
Range B: The stop coil interrupts the timing out of the set time.
Range C: The reset coil resets the relay.
Other
Retention
Selected timing relays can be run with retentive actual values. If a timing relay is retent-
ive, the actual value is retained when the operating mode is changed from RUN to STOP
and when the power supply is switched off.
When the control relay is restarted in RUN mode, the timing relay continues with the
retentively stored actual value.
In the Project view, go to the System settings tab and select the timing relays, out of T1
through T32, that should be run with retentive values. For more information, please
refer to System settings tab. A retentive actual value requires 4 bytes of memory.
Operand Description
Constant 0.. to 99:59 (time range: "M : S"/"H : M") or 0 - 99.99 (time range: "S")
C Output of a counter relay (e.g. C3QV).
If the counter actual value is greater than the maximum permissible setpoint
of the configured time range, the setpoint will be limited to this maximum
value.
Example: You have configured the time range M: S and the counter actual
value is 31333. The device limits the setpoint to 5999 min.
IA Note the relationship described below between the permissible analog value
and the timing relay setpoint.
T Output of a timing relay (e.g. T4QV).
Example of a timing relay when using the EDP programming language
I 10-----------------------------
Ä
T 02EN
M 42-----------------------------
Ä
T 02RE
M 43-----------------------------
Ä
T 02ST
Figure 122: Wiring the function block coils
The trigger coil of the function block is connected here directly to the device inputs. A
marker activates the reset coil, another marker activates the stop coil.
T 02Q1---------------------------
Ä
Q 01
Figure 123: Wiring of the function block contact
The signal from the function block will go directly to the device output.
easyE4 11/18 MN050009 EN www.eaton.com
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