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Operation
NOTE
It is not possible to reset errors or warnings on the
connection box itself. An active error can only be deleted
by:
•
NMT-Reset
•
Restarting the connection box
•
Error reset via the ISD Toolbox software or
CoDeSys
See 12.3 Emergency Codes for further information.
7.1.4 <SET> Push Button
The <SET> push button can be used to scroll through the
list of messages and to set IDs.
The CAN-ID is shown when the push button is pressed for
3 seconds.
7.1.5 <CAN-ID> BCD Switch
The <CAN-ID> BCD switch is used to assign the ID
manually. See 6.2 CAN-ID Setting.
7.1.6 Service Interface
CAUTION
The service interface is only for use by Danfoss Service.
7.2 Display via Toolbox and CoDeSys
In addition to the display on the ISD connection box, it is
possible to query the status of the connection box via ISD
Toolbox.
In order to do this, it is necessary to connect to the CAN
bus network via a PC/laptop. A CAN dongle is required,
which realises the physical connection between the CAN
bus network and the connection box.
The ISD Toolbox enables the individual ISD components to
be displayed directly and thereby information about the
ISD components to be attained.
The parameters of the ISD components can also be read
via CoDeSys on the master controller.
The ISD Toolbox software, firmware updates, EDS files and
CoDeSys libraries can be downloaded from the Danfoss
website (www.danfoss.com).
®
VLT
ISD Connection Box Operating Instructions
7.3 Machine States
Illustration 7.3 Machine States
Illustration 7.3 shows the main state machine transitions.
The states 'Under Voltage' and 'Over Voltage' are sub-
states of state 'Operation Enabled'. Therefore these states
inherit all transitions of their base state.
State 'Init' performs checks related to state 'Voltage
Disabled' and makes a direct transition into state 'Fault
Charged' if the capacitors are found charged.
An emergency message is sent whenever the connection
box enters into any fault state. Each commanded
transition, that has been rejected because proper
operation can't be guaranteed, results in a warning
emergency message being sent. Emergency messages are
added to the history and displayed on the connection box
display.
All measurements and derived values are accessible via the
CAN object dictionary in all states.
Servicing operations, such as firmware flash, connection
box reset or CAN-ID setting are only allowed in unpowered
states.
®
MG75G102 - VLT
is a registered Danfoss trademark
Init
Voltage
Disabled
Switch On
Switch O
Power
Up
Fault
Charged
Operation
Enabled
Under
Voltage
Error Reset
Fault
Discharged
Power
Down
7
Switch O
Over
Voltage
37
7
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