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4 Wiring with
4.3 Function Relays
Operating instructions
05/10 MN05013003Z-EN
www.eaton.com
77
4.3 Function Relays
Function relays allow you to simulate the functions of different conventional
control engineering devices in your circuit diagram. easy provides the
following function relays:
Table 9:
Function Relays
A function relay is started via its relay coil or by evaluating a parameter. It
switches the contact of the function relay according to its function and the
set parameters.
easy circuit diagram symbol
Function Relays
A1
,
A2
Analog value comparator, threshold value switch (only useful for devices with
an analog input)
C1
,
CC1
,
DC1
,
RC1
Counter relay, up/down counter, high-speed counter, frequency counter
D2
,
Ä
D2
Text, output user-defined texts, enter values
Ö
1
,
Ö
2
Time switch, weekday/time
O1
,
Ä
O2
Operating hours counter with limit value entry
T1
,
TT1
,
RT1
,
HT1
X
,
?X
Timing relay, on-delayed
Timing relay, on-delayed with random switching
T1
,
TT1
,
RT1
,
HT1
â
,
?
â
Timing relay, off-delayed
Timing relay, off-delayed with random switching
T6
,
TT6
,
RT6
,
HT6
X
â
,
?X
â
Timing relay, on/off-delayed
Timing relay, on/off delayed with random switching
T2
,
TT2
,
RT2
,
HT2
ü
Timing relay, single pulse
T3
,
TT3
,
RT3
,
HT3
Ü
Timing relay, flashing
:2
,
Ä
:2
Jump
Y3
Year time switch, date
Z1
,
Z3
Master reset, central reset of outputs, markers
→
Current actual values are cleared if the power supply is
switched off or if easy is switched to STOP mode. Exception:
Retentive coils keep their logic state (
(non-volatile data storage)“, page 181).
CAUTION
The following applies to RUN mode: easy processes the
function relays after a pass through the circuit diagram.The last
state of the coils is used for this. This takes the last status of the
coils into account. Only use the coil of a function relay once.
Exception: When working with jumps, the same coil can be
used several times.
Summary of Contents for easy500, easy700
Page 4: ...II...
Page 28: ...1 1 5 operating principles 24 Operating instructions 05 10 MN05013003Z EN www eaton com...
Page 210: ...7 What Happens If 7 3 Event 206 Operating instructions 05 10 MN05013003Z EN www eaton com...
Page 234: ...9 Glossary of terms 230 Operating instructions 05 10 MN05013003Z EN www eaton com...