2 operation mode selection, 1 operation mode selector (oms), Operation mode selection – Lenze E84Dxxxxx User Manual
Page 31: Operation mode selector (oms), 3safe configuration
Lenze · 8400 protec · Drive-based safety · Software Manual · DMS 2.4 EN · 05/2013 · TD05
31
3
Safe configuration
3.5
Safety functions
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3.5.2
Operation mode selection
Short overview of "Safety functions Operation mode selection" parameter group:
3.5.2.1
Operation mode selector (OMS)
Parameter
Information
Lenze setting
Value Unit
OMS: Stop function
STO
OMS: Motion function
Free traversing
Operation Mode Selector / OMS
Description
This function serves to switch between normal operation and "special operation" of the drive.
The special operation enables the overriding of a standard stop (
) by release
Conditions
• A safe input must be parameterised and interconnected as an operation mode selector. You
can only connect and parameterise one operation mode selector. The OMS bit of the safety
bus must be deactivated. (
• The special operation can also be selected via the safety bus with the OMS bit unless a safety
input is set as an operation mode selector.
• The plausibility check rejects ambiguous settings until you have parameterised them
correctly.
Function
Basic status of normal operation
If special operation is requested, the stop function parameterised for special operation
(
) is activated.
A release through the enable switch enables the motion function ( free traversing)
parameterised for the special operation.
Parameter
OMS: Stop function
OMS: Motion function
• The "Free traversing" setting must be suitable for the application!
Requesting the
special operation
How to request the special operation:
• "ON state" at a safe input to which the "operation mode selector" function has been assigned
by parameter setting.
• Only if no safe input is used, the function can be activated via the safety bus by sending a data
telegram with a corresponding content to the controller.
Deactivating the
special operation
A change-over from special operation to normal operation is only possible when the drive is at
standstill (stop function
active).
• For a restart, the restart must be acknowledged (AIS) via terminal or safety bus.
• The automatic restart is not permitted. If the "Automatic restart" is parameterised, this must
be prevented by special measures, e.g. programming in the master control.
Error behaviour
• The emergency stop function can be triggered in both operating modes.
Normal operation
Acknowledge (AIS)
for restart
Special operation
Stop function
Enable switch (ES)
Motion function
Activate OMS
Deactivate OMS
0
1
2