Chapter 5: Auxiliary Functions

ES2 Series Servo User Manual Lite V1.0

5.4 Digital signal forced input and output function

The servo drive has DI/DO force input and output function. The forced DI input can be used to

test driver DI function, and the forced DO output can be used to check the DO signal connection

between the host computer and the driver. When using digital signals force input and output functions,

the logic of physical DI and virtual DI is given by forced input.

1) DI signal forced input

When this function is turned on, each DI signal level is only controlled by the forced input (P11-11)

setting, not related to external DI signal status.

a) Method of operation

Figure 5-1 Diagram of the DI signal forced input setting procedure

Related function code

Function

code

Name

Setting range

Min Factory

unit setting

Effective

time

0-no operation

DIDO forced 1- forced DI enable

P11 10 input and output 2-forced DO enable 1

0

Immediately

enable

3- forced DI and DO

enable

P11

11

Set DI

input

forced

0-0x01FF

1

0x01FF Immediately

P11

12

Set DO forced

output

0-0x001F

1

0

Immediately

Type

Set

when

running

Set

when

running

Set

when

running

Related

mode

PST

PST

PST

Among them, P11-11 is used to forcibly set the DI level, and the panel is displayed in

hexadecimal. After converting to binary, “1” indicates high level and “0” indicates low level.

The DI terminal logic selection is set by the P02 group parameter. P18-21 is used to monitor the

status of the DI terminal. The panel displays the level. The P18-21 read by the background software is a

decimal number.

For example:

The setting method of “DI1 terminal is valid, and DI2~DI8 terminal is invalid” is as follows: (9 DI

terminal logics are “low active”)

Since "1" indicates a high level and "0" indicates a low level, the corresponding binary is

"111111110", which corresponds to the hexadecimal number "1FE", so

Set the "P11-11" parameter value to "1FE" via the panel.

P11-21 monitor DI level status:

If the DI function is not faulty, the display value of P11-11 is always the same as P18-21.

Therefore, the DI1 terminal is low on the panel and the DI2~DI8 terminals are high.

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