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If the Line drive driving can not meet the equation 2.8V≤ (H level)-(L level)≤3.7V, the servo unit input will
be unstable. When the reference pulse is entered, it may cause the pulse missing. When the reference signal
is entered, it may select the reverse rotating value of the reference signal. The maximum pulse frequency is
500KHz. The Line drive driving will not easily be impacted by the external, so we suggest this connection.
·Open Collector drive (external power)
·Single drive (internal power)
·
When the input is TTL Line drive mode, there is no problem of power;
·
When the input is open collector input mode, if internal 24V is adopted, IG24 is connected with the current
outflow end of switch tube; if the external power is adopted, do not connect internal 24V with external power,
and the Dropout Voltage of user‟s switch tube is requested to below 1V. If the voltage drop is higher than the
value, an appropriate external pull-up resistance is needed to increase. External resistance selects R=
(5~24V)/(8~10mA), the power of the resistor is 1W. External pulse open collector drive mode
,
no matter it is
internal or external supply, IG24 must be connected with the reference ground of control end or PLC etc.