68
IMS-MN-LMDE42C_A
I/O Operation
Liberty MDrive Ethernet TCP/IP
Analog Input
NOTE:
The absolute encoder variant does not have an analog input.
The analog input is a 12-bit input which operates in one of two modes.
• Voltage mode can be set to be 0 to 5 V or 0 to 10 V.
• Current mode will operate at either the 4 to 20 mA or the 0 to 20 mA level.
Function is defined using the
INPUT _ SETUP
parameter (
IS
) as:
IS=[5],[FUNCTION],[PARAMETER]
Point
Function
Parameter
5
9 = Voltage mode*
0 = 0 – 5 V*
1 = 0 – 10 V
10 = Current mode
0 = 0 – 20 mA*
1 = 4 – 20 mA
* Default
The value of the analog input is read using the
I5
command which will read in counts.
Signal (Trip) Output
The signal output is an isolated high speed dedicated function output for monitoring trip
events. The output may be programmed to trigger on a single trip event or any combination of
events. The available events are:
• Trip on input
• Trip on absolute position
• Trip on capture
• Trip on time
• Trip on relative position
• Trip on hMT status
• Trip on main power loss
The trip output may also be set to any other output function.
NOTE:
While the output is high speed, it is lower current and can only sink 5.5 mA, where
outputs 1 and 2 are 100 mA and over-current protected. Outputs 1 and 2 are not available on
the NEMA 17 (42 mm) device.
The function and active logic state is defined using the command or function appropriate to the
protocol being used.
Point
Function
Alternate Function
Active
3
28 = Trip
16 = General Purpose
17 = Moving
18 = Software error
20 = Velocity changing
21 = Locked rotor
23 = Changing position
24 = hMT active
25 = Make-up active
0 = Low True
1 = High True
The logic state of the trip output may be set by a programmed trip event or using the
O3
command.
