Object 0x6040: controlword – ElmoMC CANopen DSP 402 Implementation Guide User Manual

Page 32

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CANopen DSP 402 Implementation Guide

MAN-CAN402IG (Ver. 1.2)

26

Illegal Transition
After initiation of a drive by either power on or NMT node reset, the drive automatically
performs transitions 0 and 1 to the SWITCH ON DISABLED state. The controlword can
then be used to cause any of the transitions defined previously. If a transition is illegal
(such as requesting a QUICK STOP in a FAULT state), the controlword is rejected with
abort code 0609 0030, “Value range of parameter exceeded.” If an RPDO is used to
control the drive, an RPDO style emergency is transmitted with the error code. The
emergency structure and meaning is illustrated in the

SimplIQ

CANopen Implementation

Manual. This emergency can be masked in accordance with object 2F21h. In case of an
illegal transition, bit 7 in the statusword
(warning) is set for at least the next
transmission of this statusword
. The bit is after a legal transition of the controlword.

The resolution for statusword transmission is approximately 3 milliseconds. Events

that are modified during this time are sensed and responded to, but no notification
of them is made by the statusword.

Object 0x6040: Controlword
The controlword contains bits for:

Controlling the state

Controlling operating modes

Manufacturer-specific options

Object description:

Index 6040h

Name Controlword

Object code

VAR

Data type

UNSIGNED16

Category Mandatory

Entry description:

Access Read/write

PDO mapping

Possible

Value range

UNSIGNED16

Default value

No

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