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5.3 Enable input
If several devices with different switch points are used for overspeed monitoring of
a drive, the devices whose switch point value is not relevant can be "switched off"
by means of the two enable inputs� The current paths are then closed�
In this way the relay status can be controlled via the enable input after power-on
of the device�
The monitoring function is activated or deactivated by means of a complementary
signal to both enable inputs�
Time-dependent behaviour of the enable inputs
1: Monitoring function active/not active
2: Enable inputs not in the right time
The monitoring function is only deactivated if both input signals E1 and E2
are provided almost simultaneously� The maximum time interval of both
input signals must not exceed 0�5 s�
The signal can be applied via mechanical switches�
