The signal levels applied to activate the functions via the virtual terminals of control word 2 are the
same as those for the standard terminal strip. Consequently, a function, which is activated by applying
a signal level of “+24 V” on the input terminals, requires a logic “1” to be applied on the virtual terminal.
Functions which are active when low (e.g. /delay monitoring) must be activated by applying a signal
level of “0V” on the input terminals and a applying a logic “0” on the virtual terminals.
The following table lists the terminal functions which can be activated via the virtual terminals and
their connection to the real terminals.
Function
Connecting of terminal and control word bit
CCW/Stop
OR + AND relation with basic control block (
→
Fig. 23)
Enable/Stop
OR + AND relation with basic control block (
→
Fig. 23)
Parameter set selection
*)
OR
Fixed setpoint n11 (n21)
OR
Fixed setpoint n12 (n22)
OR
Reset
OR
Motor potentiometer Up
OR
Motor potentiometer Down
OR
/Deceleration monitoring
OR
Ramp generator selection
OR
/Controller inhibit
OR + AND relation with basic control block (
→
Fig. 23)
/External fault
OR
CW/Stop
OR + AND relation with basic control block (
→
Fig. 23)
No Function
OR
/Hold control
*)
OR
/Limit switch CW
*)
OR
/Limit switch CCW
*)
OR
Reference cam
*)
OR
Reference travel
*)
OR
Fixed setpoint selection
OR
Setpoint active
OR
Characteristic selection
OR
*)
Not available for MOVITRAC
®
31.., size 0
Functions which cannot be used, can also not be selected (e.g. synchronous operation, master-slave).
Inverter Control
with Process Data
3
38
MOVITRAC
®
31.. Fieldbus Unit Profile
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
