CONTREX ML-TRIM - Manual (Page 3)

FOLLOWER OPERATION
Complete the “Scaling” and “Tuning” procedures for Master mode (Page 2) before proceeding with Follower opera
tion. To enable Follower operation, follow the procedure below:
1. Wiring additions:
2. Enter the pulses-per-revolution of the lead (master) sensor into CP-30 (PPR Lead).
3. Enter the maximum system operating RPM of the lead motor (or sensor shaft if not directly connected to the
motor) into CP-33 (Max RPM Lead).
4. The ML-Trim is now scaled for ratio follower operation. Setpoint and display values are in ratio of
follower/lead. If engineering unit setpoints and/or displays other than ratio are desired, refer to Chapter 3 of the
“ML-Trim User Manual”.
5. Enter the desired operating ratio into CP-3 (Follower Setpoint).
TROUBLE-SHOOTING
Master Mode: Motor Will Not Run
Step 1: Check MP-53 (Control State).
a) Should be “0010” (Run).
b) If not “0010”, check the Run, R-Stop and F-Stop wiring.
Step 2: Check MP-45 (Scaled Reference).
a) Should not be zero.
b) Press “SETPOINT” and enter a midrange value setpoint.
Step 3: Check MP-46 (Ramped Reference).
a) Should not be zero.
b) If MP-46 is zero, check MP-50 (Active Scaling Mode) for a value ”0010" (Master Mode).
c) If MP-50 is not “0010", check J5 Pin 12 wiring according to Chapter 2 of the “ML-Trim User Manual”.
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O N T R E X , I N C . O N T R E X , I N C . O N T R E X , I N C . O N T R E X , I N C . O N T R E X , I N C .
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