Aimco Brakes Monitor UECD4800 Instruction Manual

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11. Functions 
11.1. Fastening control 
締付制御の仕様が２種類から選択できます。 
Control method : 3 UEP-MC Wrench Torque Control Tool
 
：５  ＵＥＰ－ＡＭＣトルクコントロール角度モニタリング    
 
1)  UEP-MC Wrench Torque control   
This is to control torque of UEP-MC wrench.   UECD starts torque measurement when detecting 
the start torque or greater torque, and switches on valve terminal to stop the tool when reaching 
torque cut level.    UECD provides judgment when judgment delay timer comes up after torque 
gets lower than start torque....

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12. Upper and Low limit judgment 
 
UECD provides judgment whether or not the detected torque, angle or pulse number is within 
upper and low limit.    Upper and low limit judgment is made against torque or pulse numbers until 
fastening is completed.    Upper and low limit of torque is set in [TORQUE LOW] and [TORQUE 
HIGH] in the BASIC SETTING screen.    Upper and low limit of pulse number is set in [PULSE 
LOW (pulse blow number lower limit)] and [PULSE HIGH (pulse blow number higher limit)] in...

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(6)    ANGLE LOW NOK judgment when the angle measurement is confirmed lower than low limit. 
(ANGLE LOW NOK) 
*  ANGLE HIGH error message 
* Buzzer sounds.  
* UECD outputs TORQUE NOK.   
 
 
(7)    Judgment when pulse number is less than pulse number low limit.    (PULSE LOW NOK) 
・Front panel displays [PLS.L.] and [Torque measurement value] by turns. 
・Buzzer sounds. 
・UECD outputs TORQUE NOK. 
 
 
  

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12.1. Torque change degree zone monitor 
 
 
 
  
 
 
 
 
 
        ０ 
 
 
 
 
 
 
Note 1: “IE error” stands for “Initial Error”.     
Note 2: Above is an example of linear torque change curve. 
 
1) Initial error [LO.E.] 
UECD provides the error when the time from start torque to cut torque is shorter than the time of 
initial error detect timer.     
［Setting value］ 
・Initial error detect select: 1 
・Initial error detect timer : 1 – 9999 [msec] 
［How to set］   
・Determine the setting value by...

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13. Torque Sensor Wiring Diagnosis 
 
UECD is capable of checking torque sensor cable’s damage, break or short circuit.    The error 
detection is made when ZERO/CAL check is in action.
 
 
 
13.1. Error detection 
1)  ZERO check 
UECD checks how much the voltage of torque sensor will change from 0(V) under no load 
condition.  UECD detects ZERO error if the voltage variation (DPM display zero point) becomes 
out of the range of plus or minus 6% of the rated torque.   
 
 
 
2)  CAL check 
UECD...

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14. Auto ZERO 
 
This is a function to do correct torque value measurement by doing automatic correction measured 
torque variation due to torque sensor’s ZERO point deviation.    UECD memorizes ZERO point 
deviation confirmed by ZERO/CAL check, includes the deviation degree in torque sensor signal, 
and converts the adjusted torque signal to torque value.      This auto ZERO will not function when 
ZERO/CAL error occurs.    
 
Examples of AUTO ZERO 
1)    When ZERO/CAL check detects plus (+) side...

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15. Torque waveform measuring procedure 
 
Following explains how to measure the torque waveform by using the memory hicorder 
or memory scoop.   
 
1)  Make sure that the setting values are correctly set up.  Check especially that the 
specifications of the torque sensor connected to the UECD-4800 agrees to the setting value of the 
torque sensor, and the CAL value is set up correctly.     
 
2)    Connect the waveform measurement equipment to UECD-4800.     
 
 
 
 
 
 
 
 
 
 
 
Note)...

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16.  ANALOG OUTPUT terminal 
 
UECD outputs the analog torque signal voltage in real time by having the torque sensor output 
signal voltage amplified by 1000 times, filtered and attenuated.    
 
1)  Torque sensor output voltage specification table 
Following is output voltage (x V) when rated load torque is applied to torque sensors.   
 
 
Torque sensor specifications ANALOG output voltage ( x V) 
UEP-MC Magnetostrictive Sensor  DC 1.5V 
 
2)    How to convert analog output voltage to torque...

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17. Error 
17.1. Error message & contents 
 
ZERO Error: [   ] and [NG measurements] are displayed alternately. 
・When more that ±6％  deviation off from rated value is detected. 
 
CAL Error: [ 
  ] and [NG measurements] are displayed alternately.  
・When more than 100±6％  deviation off from rated value is detected 
 
Buffer Full Error: [ 
  ] and [Torque measurements] are displayed alternately. 
・This error is fired when more angle data to a buffer than the memory unit can accommodate is 
flowed...

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Repair Pulse Number Error: [ 
 ] is displayed. 
・When the total pulse number reaches the repair pulse number setting value.    
 
Warning Memory Error: [ 
  ] is displayed. 
・When the memory remaining volume gets less than -10 from the maximum memory data.    
 
ROM Error: [ 
  ] is displayed.    
・When ROM of board is broken down or causes malfunction for some reasons.         
 
RAM Error: [ 
  ] is displayed. 
・When RAM of board is broken down or causes malfunction for some reasons.   
 
A/D...