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Elevator Core Reference Guide

Group 11.9 - Sequence Detection

Parameter Number

Parameter Name

Units

Default

Available Settings

Access

Change During Run

Scaling

Size (Bytes)

CAN Register

CAN Sub Index

Modbus Register

P11-23

Disable Run Sequence Error Detection

N/A

1: Disabled

0: Disabled

1: Enabled

RW

Y

N/A

1

2463h

0

1123

P11-24

STO Status Detection Time

sec

2.0s

0 0 ..10.0s

RW

Y

N/A

2

244h

0

1124

This function checks that the control commands sent from the controller to the drive are in the following expected order:

  1. Safe Torque Off inputs given

  2. Speed Selection given

  3. Direction command given.

Setting

Function

0

Run Sequence Error detection Disabled

1

Run Sequence Error detection Enabled

Sets the time that when the drive stops the Safety Chain inputs (STO1 and STO2) must open. If the STO inputs do not change state then the drive will trip Sto-S.

This is used to detect a short circuit of the drive STO ports.

Setting P11-24 to 0.0 will disable this function.