YASKAWA GA700 Technical Manual page 766

High performance type; 200 v class: 0.4 to 110 kw; 400 v class: 0.4 to 355 kw

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Table of Contents

11.8 H: Terminal Functions

20 to 2F: External fault

External fault

EFx [External fault (terminal S1)] is displayed on the keypad when external fault is input. The keypad will

display EFx where x is the number of the terminal (terminal Sx) to which the external fault signal is input. For

example, when an external fault signal is input to terminal S3, EF3 will be displayed on the keypad.

Select the value set in H1-xx from a combination of the following three conditions.

• Signal input method from peripheral devices

• External fault detection method

• Motor stopping method (operates after an external fault is detected)

The following table shows the relationship between the combination of conditions and the value set to H1-xx.

Signal input method

from peripheral devices

Determine whether fault detection for the input signal method is either N.O. (external fault when switched ON) or N.C. (external

fault when turned OFF).

Decide whether detection for the fault detection method should be enabled only during run or always detected.

30: PID integral reset

PID integral reset

Refer to "PID control block diagram" for details.

Selects the drive operation that was active at the time the failure or fault was detected in the

external device connected to the drive from any of the patterns between 20 to 2F.

Table 11.48 Stopping Method upon Detection of External Fault

External fault detection

Resets the value of the PID control integral to 0 while the terminal is ON, and holds the value.

YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual

OLV/PM AOLV/PM CLV/PM EZOLV

Stop (fault)

OLV/PM AOLV/PM CLV/PM EZOLV

Stopping Method

Stop (fault)

Troubleshooting