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Rev G 

Page 8 

5/9/2017 

Copyright © 2017 by Certified Cirus Control Systems.   All Rights Reserved. No part of this material may 
be reproduced in any form without the express written permission of Certified Cirus Control Systems 

 

Table 1 Set Point PWM Frequency Calibration 

 

9.) Click the engage switch to the “off” position (non-red bar) and then back to the “on” 
position. This saves the frequency value. 
 
 
 

The red LED should now be blinking slower (around 3 times per second). 

10.) The controller is now in minimum voltage calibration:   

a. Turn the set point dial to the minimum value that allows for the blade to just 
start to lift off of the ground. Or where the blade just starts to reduce pressure off 
of the ground. 

Default is #1. 

b

. Click the engage switch to the “off” position (non-red bar) and then back to the 

“on” position. This saves the minimum trim value. 
 
 

The red LED should now be blinking faster (approximately 10 times per second).   

11.) The controller is now in maximum voltage calibration:   
 

a. Turn the set point dial to the maximum value that allows for the blade to lift off 
of the ground. Or where the blades movement is to your preference.

 Default is 

#10. 

 

b

. Click the engage switch to the “off” position (non-red bar) and then back to the 

“on” position. This saves the maximum trim value. 

 

12.) Turn the engage switch to the “off” position. 
 
13.) Calibration is now complete.  Turn the engage switch “on”.   Move the set point 
knob to the desired setting. 
 

*Note:

 

If the red LED is still blinking, this signifies that the minimum output voltage set point was greater than the maximum set 

point during calibration, the process needs to be restarted at step 1. 

 

Trouble Shooting Guide

Complaint 

Cause (s) 

Correction (s) 

Red LED blinks whether the 
engage switch is on or off, and 
regardless of the set point value  

Miscalibration.  The calibrated 
minimum pwm value is greater 
than the calibrated maximum 
pwm value. 

Recalibrate the controller. 

Power Isn’t On 

a) Master Power Off; 
b) Bad Power or Ground 
connection; 

a) Turn on power;   
b) Verify power/ground 
connections. 

MORAY cuts out or acts 
strange; 

Low power supply voltage from 
truck battery/alternator; 

Minimum truck voltage must be 
> 12.0 volts. 

 

Summary of Contents for SCMC

Page 1: ... by Certified Cirus Control Systems All Rights Reserved No part of this material may be reproduced in any form without the express written permission of Certified Cirus Control Systems Single Channel Motor Control TM SCMC Operation Manual ...

Page 2: ...s written permission of Certified Cirus Control Systems Contents Limited Warranty 3 Revision Level of this Manual 4 Package Contents 4 Functional Overview 4 Feature Overview 5 Features 6 Power Switch 6 Set Point 6 Engage Switch Trigger 6 Red LED 6 Power 6 Valve Power 7 PWM Output Signal 7 Calibration 7 Trouble Shooting Guide 8 Appendix A Standard System Drawings 9 ...

Page 3: ...urned to Certified Cirus Controls factory The repair or replacement of defective parts under this warranty will be made without charge to the owner except for transportation of the part to our authorized repair location What is not covered under this warranty Certified Cirus Controls will not assume any expense or liability for repairs made outside our plant without our prior written consent We ar...

Page 4: ...K 2005 5 Trigger cable JP 1002 6 This manual If any of these items are missing please contact your distributor for replacement parts Functional Overview SCMC TM is a manually regulated plow controller which adjusts the contact weight down force that the moldboard of a snowplow exerts on a road surface The system decreases or increases the contact weight of the snowplow depending on the position of...

Page 5: ...n system power switch Engage Enables the SCMC TM to take control of the contact weight Set Point Dial used to set the contact weight of the implement Red LED Voltage output signal on or off SCMC TM Control Panel Back View POWER Provides power and ground to unit MK 1003 cable PWM Voltage signal output to the valve controlled by the set point SF 1005 cable VALVE POWER On Off output signal to the val...

Page 6: ...ut will be off 0 volts Set point dial setting 1 9 output will be linear between 1 12 volts Set point dial set to 10 output will be fully on 13 volts Note the above output references are based on a calibration setup of minimum trim 1 and maximum trim 10 Output voltages will vary based upon min and max calibration settings Engage Switch Trigger The engage switch and trigger allow the set point dial ...

Page 7: ...igurable to provide optimum user performance To modify and or change these values follow the below process 1 Turn the engage switch off Red part of the switch is NOT showing 2 Turn the power off on the SCMC TM 3 Rotate the set point dial to number 10 4 Turn the power switch on a Within 1 seconds turn on the ENGAGE switch red bar of switch showing b Within in 1 seconds rotate the set point dial to ...

Page 8: ...ration a Turn the set point dial to the maximum value that allows for the blade to lift off of the ground Or where the blades movement is to your preference Default is 10 b Click the engage switch to the off position non red bar and then back to the on position This saves the maximum trim value 12 Turn the engage switch to the off position 13 Calibration is now complete Turn the engage switch on M...

Page 9: ...ight 2017 by Certified Cirus Control Systems All Rights Reserved No part of this material may be reproduced in any form without the express written permission of Certified Cirus Control Systems Appendix A Standard System Drawings ...

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