Eaton easy800, Руководство пользователя

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9 Inside 800
9.5 Time behavior of the inputs and outputs
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
323
9.5.2 Delay time on

800 AC devices
With AC inputs the easy800 standard device scans the input signal in long or
short scan cycles t
SC
depending on whether DEBOUNCE is activated/
deactivated. The scan cycle also depends on the frequency of the supply
network.
Delay time with DEBOUNCE activated
If the DEBOUNCE function is activated, the easy800 device checks whether
a positive half-wave is present at an input terminal during two successive
scan cycles t
SC1
(1st and 2nd scan pulse at A). If the easy800 device
registers two positive half waves in succession, it switches the appropriate
input (contact) internally from 0 to 1.
Figure 214:Delay times for evaluating an AC input signal and an activated DEBOUNCE
The typical input delay caused by the DEBOUNCE is therefore at least
80 ms. The cycle time must be added to this since an easy800 device does
not transfer the signal into the circuit diagram until the start of a cycle.
Conversely, the input is switched off if the easy800 device does not detect
any half-cycles twice in succession (1st and 2nd pulse at B).
t
SC1
(50 Hz) = 40 ms, t
SC
(60 Hz) = 33.3 ms
• Switch-on delay (normally):
• I1…I12: 80 ms (66.7)
• Off-delay (normally):
• I1…I12: 80 ms (66.7)
The corresponding values for 60 Hz are given in brackets.
A
1 1
B
S1
t
SC2