Delta Electronics VFD-VL Terminal Symbols Descriptions, Power source of encoder, TB1, Encoder

Appendix B Accessories

„When PIN 2 and PIN 3 are set to 0, the input signals (A-/A and B-/B) of PG card should be square wave and A/O-/A/O and B/O-/B/O are the outputs of frequency divider.

„When PIN 2 is set to 0 and PIN 3 is set to 1, the input signals (A-/A and B-/B) of PG card should be square wave and B/O-/B/O is the indication of phase A and B. (EX: LOW means A leads B and HIGH means B leads A). A/O-/A/O is the output of frequency divider.

„When PIN 2 is set to 1 and PIN 3 is set to X, B-/B should be the input signal of direction indication. (EX: when B-/B is LOW, it means that A leads B. When B-/B is HIGH, it means that B leads A. A-/A is a square wave input. B/O-/B/O and B-/B should be input synchronously. A/O-/A/O is the output of frequency divider.

„Z/O-/Z/O of the PG card will act by the input signal of Z-/Z and don’t have the function of frequency divider.

„When changing the denominator of the frequency divider or input/output type, it needs to clear the counter value by clock reset bit (PIN4) before operation. Please set the switch to 1 after reset.

B.8.2 EMVL-PGABO

3.Terminals descriptions

Terminal Symbols			Descriptions
	VP		Power source of encoder
	0V		Power source common for
TB1			encoder
	A,A,	B, B, Z,Z	Incremental line driver input

Specifications

Voltage: +12V±1V

Current: 200mA max.

Reference level of the power of encoder

Open collector signal input. Max. bandwidth is 100kHz Please notice that A,B, Z and 0V should be short circuit.

Revision Nov. 2008, VLE1, SW V1.03 B-25