CONTREX CX-1200 - Manual (Page 48)

Page 46
R-Stop (Ramp Stop) has the second highest operating priority. Use R-Stop to stop the drive with a
deceleration ramp. The velocity command is ramped down to “0”. If the loop is “Closed”, the ramp is
executed with velocity loop control (with feedforward, using Kff ). If the loop is “Open”, the ramp is
executed with feedforward only (using Kff ). The deceleration rate for the ramp is determined by Dcl Tm
RStp (CP-310) and Ref StopRmp (CP-210) or by the Dcl Rt RStp (CP-311). Once the ramp reaches “0”, the
feedback is monitored. When the feedback is less than the Zero Speed (CP-332), the Drive En (PLC bit 41)
resets to “0”. The PLC program routes the PLC bit to an output that is disables the drive. If the feedback
does not reach the Zero Speed (CP-332) within 1/2 second, then the Drive EN PLC bit automatically resets
to “0”. The integral, trim and feedforward set to “0” and the loop sets to “Open Loop” (OL).
To activate R-Stop:
• Activate High (Open), Level Sensitive, Latched
• Use momentary contact - does not need to be maintained to remain active
R-Stop
1 F-Stop
R-Stop
Common
Open Momentarily
F-Stop
2
3
J6
Figure 2-47 R-Stop Input