M2CP Digital Futronic User Manual
84829 Rev F
EIM Company, Inc 13840 Pike Road Missouri City, TX 77489 (281) 499-1561 Page 7
Turn-off Delay = 10 Seconds = Delay after motor stops before turning off Open or Close reversing
contactor outputs unless a reversal in direction is required. If reversal in direction, then Modulation Delay
time is used. Valid only when Futronic III or Futronic IV modes are selected. This delay prevents
excessive operation of the contactor while modulating or the 4-20mA command signal is being ramped by
a PID control loop.
Accel = Time required to accelerate motor speed from zero to full speed when motor is started due to
Error greater than Deadband. The purpose of Accel is to soft-start the motor and to help prevent control
overshoot when making small position changes. Accel is inversely proportional to Error and is
automatically adjusted by the controller.
Decel = Time required to decelerate motor speed from full speed to zero while Position is approaching
Command position setpoint. Valid only when Futronic III or Futronic IV modes are selected. Decel is
proportional to Error. If motor is at full speed (Accel time expired) and Error is less than tuned parameter
then the controller begins decelerating motor speed over a period of time where Decel=(Error-
Deadband)*T Sec. Decel is activated only when Accel time has expired. This prevents motor stall when
making small position changes. If Error is less than Deadband then Decel=0.
DC Motor Speed Control = Full speed of the motor is set at the factory using a potentiometer on the
SCR motor control module. The Digital Futronic module regulates full speed of the motor, maintaining
accurate speed/valve travel time regardless of high or low power line conditions and varying load
conditions. Valid only for Futronic III.
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