FEC AFC1500 - Manual (Page 19)

FEC AFC1500 Operations Manual Chapter 1: Outline (Rev. 6: 10/09)
Page 1-5
1.3 Functions
• Fastening function.
The following fastening control methods can be selected for either clockwise (CW) or counterclock-
wise (CCW) operation:
Torque Control / Angle Monitoring
Angle Control / Torque Monitoring
Current (Amp) Torque Control (NRT – Transducerless tools only)
Current (Amp) Angle Control (NRT - Transducerless tools only)
The SAN unit used as a standalone unit (without the Multi Unit) has capability for one, two & three
step fastening. With the addition of the Multi Unit, one - three step fastening is possible and may be
repeated (using the sequence function) over multiple steps allowing for a multitude of fastening se-
quence possibilities.
As stand alone units, SAN Units can perform synchronized fastenings using the SYNC I/O signals,
which controls the simultaneous synchronization of all spindles. Thus, each spindle stops and waits
when they reach the previously defined step value. When all connected spindles have reached the
same step value, they will simultaneously start again and rundown to the next step value. When
configured with a Multi Unit, spindle synchronization is a standard function in the fastening sequence
set-up.
Note: With the use of a Multi Unit, fastening steps may be performed repeatedly in up to 99 fastening
steps in the fastening sequence.
Torque rate monitoring is available in any configuration.
• Self-Check Disable Function
The Self Check can be disabled by an external PLC signal. If the self check signal is "high"
(inactive) before the cycle starts, the check is done automatically. The zero voltage level of the tor-
que transducer and the CAL voltage levels are verified to within +/- 4%. When the torque transduc-
er's automatic check is not required, this function can be disabled by activating the SELF CHECK
signal before the cycle starts. The fastening cycle will then be performed without the self check.
• Reject / Abnormal Condition Display
When a fastening Reject has occurred, the tool stops, outputs the appropriate signal and dis-
plays the resultant data in the Detachable Keypad-Display unit if it is connected. Upon a fastening re-
ject, the unit will not require resetting prior to the next cycle.
The System will output an Abnormal signal when it detects there is a problem (Zero Check out of lim-
its, incorrect component connection, etc.) within the system itself. The output will be displayed as a
code on the affected Axis unit. Refer to Chapter 9 Troubleshooting for more details. Correction of
the abnormal cause and reset of the system is required on an abnormal before normal operation can
resume.
• Axis Bypass Function
When a PLC Bypass input signal is activated or when the RUN/BYPASS switch on the front
panel is switched to the Bypass position, the Bypass output signal is activated. In this condition, the
spindle will not START, REVERSE, CAL OR RESET. The SYNC signal will be bypassed to avoid af-
fecting synchronized operations. When the Axis unit is in the bypass mode, the "Bypass" LED on the
front panel of the Axis unit will blink. When configured with a Multi Unit, the bypassed spindle is ig-
nored as if it doesn’t exist in the multiple spindle configurations.