AXIS#.SAFEPARAM.SBT.MAXMOTIONBRAKE#

Description

Indicates the amount of rotation that should occur for the shaft attached to the specified brake. If the amount of motion detected is larger than this specified amount, the Safe Brake Test (SBT) will enter a failed state and the Safe Brake Acknowledge (SBA) signal is low.

 

Parameters Editor with Maximum Motion Brake 1 and 2 circled

The drive will still be allowed to be enabled and command motion. It is up to the safety system to prevent motion in the event of a failed/expired SBT (ie: SBA signal).

Context

For complete SBT information refer to SBT (Safe Brake Test).

Related safety parameters:

Versions

Action

Version

Notes

Implemented

02-01-02-000

General Information

  SMM1

Type

Read/Write

Units

Arc minutes

Range*

1 to 4294967295 arc minutes

Default Value

300 arc minutes

Data Type

Integer

Stored in Non-Volatile Memory

No

*Note: MAXMOTIONBRAKE cannot be set to a greater or equal value than 10800 arcminute. Otherwise, the SMM will return an error code once SBT function is started. The error code can be read by the keyword AXIS#.SAFE.SBT.ERROR, which will report “0x6 – SMM System Error”.

Fieldbus Information

EtherCAT CoE and CANopen

Command

Index

SubIndex

Data Type

Units

Float Scale

Access

PDO Mappable

AXIS1.SAFEPARAM.SBT.MAXMOTIONBRAKE1

3157h

04h

Unsigned32

-

-

Read/Write

No

AXIS1.SAFEPARAM.SBT.MAXMOTIONBRAKE2

3157h

05h

Unsigned32

-

-

Read/Write

No

AXIS2.SAFEPARAM.SBT.MAXMOTIONBRAKE1

3257h

04h

Unsigned32

-

-

Read/Write

No

AXIS2.SAFEPARAM.SBT.MAXMOTIONBRAKE2

3257h

05h

Unsigned32

-

-

Read/Write

No