FEC AFC1500 - Manual (Page 127)

AFC1500 Operations Manual Chapter 7: System Operations (Rev. 6.1: 1/13)
Page 7-13
Data No.05 Fastening Option 1
0200: Offset check External gear preload torque is checked to confirm that it is less than or
equal to the prescribed value. When this function is selected, fastening operation is
unavailable for parameter 1.
0400: 1/4 Torque recovery operation
1000: Tool reactive force reduction operation after fastening
0001: Offset torque correction
Fastening is conducted with the torque value which passed the previous offset check.
This function is unavailable when offset check is not selected.
0002: Fastening ends due to the FAS.END signal input, and judged.
0004: 1P Reverse operation is conducted after fastening to prevent sticking or locking of socket.
* When combining multiple functions, add the data numbers in hex.
Example: 0400 + 0002 + 0004 = 0406
Data No.06 Fastening Option 2
Select the results to be outputted by the RS485 communication between your PC.
2000:
No output at BYPASS
1000: No output at STOP
0400: No output at ABNORMAL
0200: No output at REJECT
0100: No output at ACCEPT
* When combining multiple functions, add the data numbers in hex.
Example: 0400 + 0200 + 0100 = 0700
Data No.10 Calibration torque
The calibration value is set according to the tool type (capacity). However, depending on the applica-
tion characteristics or the prevailing torque generated external to the tool output shaft, the value of the
applied torque and the torque display by the SAN unit may mismatch. In this case it is possible to
adjust the FULL SCALE TORQUE (CAL) value, so the displayed torque matches the installation
torque registered by an external torque transducer (Master).
The CAL value can be adjusted up to

%

of the FULL SCALE TORQUE value.
Example:
Consider the NFT-801RMA3-S tool. Nominal CAL value = 8.0 Kg.m.
Range of adjustment: from 6.2 Kg.m to 9.4 Kg.m.
Use the following formula on a collection of at least 10 fastenings when a calibration correc-
tion is necessary:
New CAL value = Master transducer mean/ FEC transducer mean x Existing CAL value
Note: The torque unit (Kgm, Nm, Ft.Lbs, etc.) must be the same for all terms. Do not
mix torque units in calculation or errors will result.
If the new CAL value is out of the adjustable range, the [Err] message will be displayed.
Example.
Tool Full Scale value (EXISTING CAL) is 78.4 Nm.
STD torque is 49.0 Nm.
Master transducer mean for 10 piece run is measuring only 47.5 Nm.
FEC transducer mean for 10 piece run is measuring 49.0 Nm.
The new CAL value is obtained as follows:
(47.5/49.0 x 78.4) = 76.0
The FULL SCALE TORQUE (CAL) value must be corrected to 76.0 Nm and en-
tered at [PARM} 1~16 [D-NO] 10.