Optidrive VTC – User Guide
www.invertek.co.uk
19
Par.
Description
Range
Units
Default
Explanation
P2-28
Master / Slave Mode
Select
0 : Slave Mode
1 : Master Mode
-
0
When in Master Mode, the drive transmits its
operational status via the serial data link. All
drives on the data link must have unique
addresses. Only one drive can be programmed
as a Master
P2-29
Digital / Slave speed
reference scaling factor
0.0 to 500.0
%
100.0
Scaling factor applied to any speed reference
on the serial data link, e.g. in Master / Slave
operation, a Slave drive will apply this scaling
factor to the transmitted Master speed
reference
P2-30
Bipolar analog input
format
= 0 - 24V DC
= 0 - 10V DC
= -10 to + 10V DC
= -24 to + 24V DC
-
Configures the analog input signal to match the
reference connected to terminal 6. Only
voltage signals can be directly connected, mA
reference signals require an external resistor
connection.
P2-31
Bipolar analog input
scaling
0.0 to 500.0
%
100.0
Scales the analog input by this factor, e.g. if P2-
30 is set for 0 – 10V, and the scaling factor is
set to 200.0%, a 5 volt input will result in the
drive running at maximum speed (P1-01)
P2-32
Bipolar analog input offset
-500.0 to 500.0
%
0.0
Sets an offset, as a percentage of the full scale
range of the input, which is applied to the
analog input signal
P2-33
2
nd
analog input format
= Digital
= 0 to 10V DC
= 4 to 20mA
= 0 to 20mA
-
Selects the format for the 2
nd
analog input
Selecting
sets the input up as a
digital input
P2-34
2
nd
analog input scaling
0.0 to 500.0
%
100.0
Scales the 2
nd
analog input by the factor set in
this parameter
P2-35
Digital speed reference
scaling control
0 : Disabled (No Scaling)
1 : Scaled by P2-29
2 : Scaled by P2-29, then bipolar
analog input added as an offset
3 : Scaled by P2-29
and
by
bipolar analog input
-
0
Active in Keypad mode (P1-12 = 1 or 2) and
Master / Slave mode only.
1 : Actual Speed = Digital Speed x P2-29
2: Actual Speed = (Digital Speed x P2-29) +
bipolar analog reference
3 : Actual Speed = Digital Speed x P2-29 x
bipolar analog reference
P2-36
Analog output format
= 0 to 10V
= 4 to 20mA
= 10 to 0V
= 20 to 4mA
-
Selects the analog output signal format
P2-37
Extended menu access
code
0 to 9999
-
101
Defines the access code which must be entered
in P1-14 to access parameter groups above
Group 1
P2-38
Parameter Lock
0 : Unlocked
1 : Locked
-
0
When locked, all parameter changes are
prevented
P2-39
Hours Run Counter
0 to 99999
Hours
Read Only
Indicates the number of hours for which the
drive has run
P2-40
Drive Type / Rating
N/A
-
Read Only
Read only parameter, showing the drive type
and power rating
