Stop Ramp With Deceleration - GE VersaMax Manual

Mixed Module, 24VDC Positive Logic Input 20 Points / Output 12 Point /

Stop Ramp with Deceleration

The graphics below show how stopping a Ramp early affects the Ramp output if the output
is configured for deceleration. The example on the left shows what happens when the
Enable Bit is set OFF during the "at velocity" part of the output. The righthand example
shows the impact when the Enable Bit is set OFF during the "ramp up" part of the output.
Note that if the Ramp output is already decelerating when the Enable Output bit transitions
from On to Off, there is no change to the operation of the Pulse Train output.
Configuration
When the module powers up or receives a new configuration, it automatically sets up all
Ramp channels to decelerate when the Output Enable bit goes OFF. If a Ramp output
should stop immediately, the channel can be reconfigured with a Data command or a
COMREQ. The data block is the same for both:
Command word
Data word (LSW)
Data word (MSW)
"0n" is the channel number from 1 to 4.
"3B" is the command (in hexadecimal): Load Stop Mode
"dddd" is the Stop Mode parameter. It can be "1" for Decelerate and "2" for
Stop Immediately. If any other value is specified, error code 13 (hex) is placed in
the Module Status Word.
GFK-1504K Chapter 13 Mixed Discrete/High-speed Counter Module
(4) High Speed Counter, PWM, or Pulse Train Configurable Points
Time Time
MSB LSB
0n 3B
dddd
Always zero
13
IC200MDD841
13-19