Delta Electronics none manual DI8 DI7 DI6 DI5 DI4 DI3 DI2 DI1

0306H

Digital Input

Communication

Function

Chapter 8 MODBUS CommunicationsASDA-AB Series

Digital Input Contact Control:

Default: 0

Range: 0~FFFF (hexadecimal number)

The setting of this parameter determines how the Digital Inputs (DI) accept commands and signals.

Input commands or signals through the DI can be either from an external source, through the CN 1 interface connector, or via communication, (RS-232, RS-485, RS-422). If the Digital Input Contact Control parameter for the DI 1 ~ 8 is set to "0", command is external, and via CN1; if it is set to "1" (decimal number) the DI signal is via communication. Each of the eight Digital Inputs are accessed individually and can be set independently of each other. They can be programmed either via the drive's keypad or via communication and computer UI. If they are programmed via the keypad a hexadecimal number is entered; if programmed via communication or UI a decimal or hexadecimal number can be used. In both methods of programming, a single number is used for all eight Digital Inputs. The following example shows how each DI is addressed and converted to a single decimal or hexadecimal number.

The eight Digital Inputs are noted from the right, DI 1 to left, DI 8 with their desired input command or signal method, 0 or 1. Once all eight Digital Inputs have been noted this binary number is converted to a decimal or hexadecimal number and entered into P3-06.

Bit	8	7	6	5	4	3	2	1
Decimal value	128	64	32	16	8	4	2	1
Input	DI8	DI7	DI6	DI5	DI4	DI3	DI2	DI1
State	1	1	0	1	1	0	0	0	= D8 Hex
									(Keypad, Communication or UI)
(External CN1								or	= 216 Dec (Communication or UI only)
Communication)

Please see Chapter 4.4.5 DI Signal Display Diagnosis Operation for display layout of the Digital Signal selection.

The Digital Input Control Contact parameter, P3-06 also works in conjunction with the Multi Function Digital Input parameter P4-07 which has several functions.

The contents of P4-07 is "read only" via the drive keypad and will display the state on or off ("blank" or "") of the eight Digital Inputs which have been set in accordance to P3-06. For Example; if P3-06 has been set to 0 (All DI is external and via the CN 1 interface) and the P4-07 display is indicating the following:

_ _ _ _ (for the manual this picture should be similar to the one shown on page 4-8 (Ch 4.4.5))

The Digital Inputs 1, 5, 6, & 7 are "on" (high) and Digital Inputs 2, 3, 4, & 8 are "off" (low).

Revision March 2008, Doc. Name: 2007PDD23000011 8-7