Elmo DBP SERIES manual Control board

36

Control board - cont.

H & R	Function			Remarks
18a	Analog input			This input is monitored by the main μP. When Vi
				< 5V, R1=470ohm should be inserted. When Vi> 5V,
				R1(Kohm)=2Vi-10 should be inserted. The μP always
				reads a range of +5V.
18b	Input 1			*
19a	+5V output			There are several +5V terminals. The accumulative
				external load should not exceed 200mA.
19b	Input 2			*
20a	Circuit common
20b	Input 3			*
21a	Auxiliary encoder input
	(Ay) or pulse input for
	Pulse	and	Direction
	mode.
21b	Input 4			*
22a	Auxiliary		encoder
	complementary		input (-
	Ay) or	complementary
	Pulse	and	Direction
	mode
22b	Input 5 or Index Input.			If a homing sequence is required, the Index Input
				must be connected to Input 5 *
23a	Auxiliary encoder input
	(By) or Direction input
	for Pulse and Direction
	mode
23b	Resolver reference			Max. voltage: 20Vptp or 7Vrms
				Max current: 80mA
				Max frequency: 20KHz

* Vil<1V, Vih>2.4V, Maximum input voltage: +30VDC

DBP - Rev 6/93