Delta Electronics VFD-G manual GND 3 SG- 4 SG+ 6 for communication

			Chapter 4 Parameters
This parameter can be set by communication settings. It can’t be set by keypad.
09 - 07	Communication Frequency Setting		Unit: 0.01
	Settings	0~160.00Hz	Factory Setting: 60.00
This parameter can be set by communication settings. It can’t be set by keypad.
09 - 08	Communication Operation Command 2
			Factory Setting: 00
	Settings	Bit0: 1: EF ON
		Bit1: 1: Reset

Bit2: 0: BB OFF, 1: BB ON

Bit3~15: Reserved

This parameter can be set by communication settings. It can’t be set by keypad.

If you set BB action by this parameter and you also need to disable BB action by this parameter.

1.There is a built-in RS-485 serial interface, marked (RJ-11 jack) on the control terminal block. The pins are defined below:

1: EV

2: GND 3: SG- 4: SG+

5: NC

6 1 6: for communication

Each AC drive has a pre-assigned communication address specified by 9-00. The computer then controls each AC drive according to its communication address.

AC drive can be setup to communicate on Modbus networks using one of the following modes: ASCII (American Standard Code for Information interchange) or RTU (Remote Terminal Unit). Users can select the desired mode along with the serial port communication protocol in 09-04 and 09-05.

Code Description:

ASCII mode:

Each 8-bit data is the combination of two ASCII characters. For example, a 1-byte data: 64 Hex, shown as ‘64’ in ASCII, consists of ‘6’ (36Hex) and ‘4’ (34Hex).

Revision July 2008, EG03, SW V1.06 4-71