Delta RMC151 - Manual (Page 722)

RMC70/150 and RMCTools User Manual
consider what value of ramp rate your application requires. 100 V/sec may be a very
abrupt stop on some systems.
Why Bother?
Use the Direct Output command to test the Control Output when you are setting up the
system.
Target Generator State Bits
The Target Generator bits in the Status Bits register indicate which portion of the move
the axis is currently in. These bits are useful when programming complex motion
sequences.
Target Generator Done bit
This bit indicates the move is complete, which occurs when the Control Output has
reached the Requested Output.
Target Generator State A and B bits
B A Description
0 0 Constant Control Output at 0 volts
0 1 Ramping Control Output away from 0 volts
1 0 Constant Control Output at a non-zero voltage
1 1 Ramping Control Output toward 0 volts
8.4.3.2. Command: Open Loop Rate (10)
Supported Axes: Control Axes
Supported Control Modes: All
Firmware Requirement: 1.00 or newer
See the Commands Overview topic for basic command information and how to issue
commands from PLCs, HMIs, etc.
Command Parameters
# Parameter Description Range
1 Requested Output (V) -10≤V≤10
2 Output Ramp Rate (V/sec) >0
Description
This command puts the axis in open loop control and ramps the Control Output linearly to
the Requested Output at the rate specified by the Output Ramp Rate.
This command is identical to the Direct Output (9) command, except that this command
does not disable the Auto Stops. Therefore, the Open Loop Rate (10) command should be
used in all cases where open loop is required during the regular machine cycle, and the
Direct Output (9) command should only be used to test the Control Output during setup.
When choosing the Open Loop Rate (10) command, the default value of the Ramp Rate is
100 V/sec, which may be a very abrupt stop on some systems. You should consider what
value of ramp rate your application requires, and not necessarily use the default value.
Why Bother?
702 Delta Computer Systems, Inc.