FEC AFC1500 - Manual (Page 169)

AFC1500 Operations Manual Chapter 9: Troubleshooting (Rev. 6: 10/09)
Page 9-15
9.11 AFC1500 SAN Unit Fastening Faults and Causes
REFER TO SECTION “6.2 Monitoring Functions” for detailed descriptions of Fastening
Faults and causes related to all monitoring functions.
9.11.1 Torque Accept Conditions
The Accept LED will light for the three following reasons:
1. The RESET input is active on either the display/programming unit or via a PLC input, and the re-
set condition (ZERO LEVEL) of the TRANSDUCER is within acceptable limits.
2. The CAL input is active on either the display/programming unit or via a PLC input, and the calibra-
tion condition (CAL LEVEL) of the transducer is within acceptable limits.
3. The previous fastening was completed within all preset limits (TORQUE, ANGLE, 1st RATE, 2nd
RATE, 3
rd
RATE and TIME).
9.11.2 Torque Reject Conditions
The Reject LED will light for the following reasons:
1. The ZERO Level is outside acceptable limits.
2. The CAl Level is outside acceptable limits.
3. The final fastening torque is not between the low and high Torque limits, low and high angle limits,
low and high rate 1, 2 and 3 or the time 1st or final time limits set in the parameter presets.
The Reject LED will blink for the following reasons:
1. Flashes fast indicating an Angle reject. ( on 100 msec – off 300 msec)
2. Flashes Slow indicating a Torque rate or time reject. (on 100 msec – off 700 msec