Danfoss VLT Series Programming Manual page 180

Programming
Variable Data
name type
VAR_IN_OUT
Chapter 6.5.4.1
Axis
AXIS_REF_ISD
51x
VAR_INPUT
Enable BOOL FALSE If this input is TRUE, power is being
TimeLimit TIME
6 6
VAR_OUTPUT
Status BOOL
Valid BOOL
Error BOOL
ErrorInfo DD_ERROR_IS
D51x
Table 6.3 MC_Power_ISD51x
If the MC_Power_ISD51x function block is called up and the
variable Enable is TRUE while in PLCopen state Disabled,
the axis state changes to Standstill.
Error is set to TRUE if the Enable input is TRUE for the time
specified in the input TimeLimit, while the Status remains
FALSE. It indicates a hardware problem with the power
stage. If power fails (also during operation), it generates a
transition to the ErrorStop state.
Only 1 MC_Power_ISD51x function block can be issued per
axis.
The Enable input in this function block is not an Enable
input as described in chapter 6.5.2.2 Function Blocks with
Enable Input. Therefore, the general rules for the Enable
input do not apply here. This function block is implicitly
enabled. The Enable input of this function block controls
the power stage of the servo drive. All outputs are always
updated (so Valid can be TRUE, even if Enable is FALSE).
The input TimeLimit represents the maximal duration of
functionality. If the TimeLimit is exceeded during switching
on the servo drive, an Error is signaled on the outputs.
However, the functionality according to the Enable input is
continued. This means that the function block still tries to
enable the servo drive, if Enable is set to TRUE, and/or to
disable the servo drive if Enable is set to FALSE. If the servo
drive starts reacting again, the Error output can change to
FALSE again without a new rising edge of Enable. Set the
value to 0 to disable the limiting functionality.
178
®
VLT
Defau Description
lt
value
Reference to the axis.
See chapter 6.5.4.1 AXIS_REF_ISD51x.
enabled.
t#0ms Time after which an error is
signaled, if Status has not changed
to TRUE while Enable is TRUE. Set
the value to 0 to disable the time
limit.
Effective state of the power stage.
If TRUE, the function block has a
valid set of outputs.
An error has occurred within the
function block.
Error identification and instance
identifier.
See chapter 6.5.2.3 Error Indication.
Danfoss A/S © 01/2017 All rights reserved.
®
Integrated Servo Drive ISD 510 System
The command is transferred immediately, but it can take
some time until the axis is powered up and the output
Status becomes TRUE.
6.5.4.3 MC_Reset_ISD51x
This function block commands the transition from the state
ErrorStop to Disabled by resetting all internal axis-related
errors. It does not affect the output of the function block
instances.
The command is transferred and executed immediately.
AXIS_REF_-
ISD51x
BOOL
Illustration 6.26 MC_Reset_ISD51x
Variable Data
name type
VAR_IN_OUT
Axis AXIS_REF_ISD
51x
VAR_INPUT
Execute BOOL FALSE Resets all internal axis-related errors.
VAR_OUTPUT
Done BOOL
Busy BOOL
Error BOOL
ErrorInfo DD_ERROR_IS
D51x
Table 6.4 MC_Reset_ISD51x
MC_Reset_ISD51x
Axis
Execute Done
Busy
Error
ErrorInfo
Defau Description
lt
value
Reference to the axis.
See chapter 6.5.4.1 AXIS_REF_ISD51x.
Error was reset and state Disabled
reached.
The function block is not finished
and new output values are to be
expected.
An error has occurred within the
function block.
Error identification and instance
identifier.
See chapter 6.5.2.3 Error Indication.
BOOL
BOOL
BOOL
DD_ERROR_-
ISD51x
MG36D102