FEC AFC1200 - Manual (Page 21)

)(& ,QF
4.7.7 Signal Timing Chart
A. Basic Control Signals
MAIN UNIT SIGNALS
STOP
READY
RESET
START
FASTENING FASTENING FASTENING
BUSY
REJECT
ACCEPT
ABNORMAL
AXIS UNIT SIGNALS
AXIS 2
BYPASS
AXIS 2
BYPASS
AXIS 1 ACCEPT
AXIS 1 REJECT
AXIS 2 ACCEPT
(INPUT)
(OUTPUT)
5 0 MSEC
FIG. 4-7-7a Basic Control Signals - Main Unit and Axis Unit
P Because the RESET input clears all fastening data, discrete outputs, and
communication buffers, it should be activated only to clear a System Abnormal or
to perform a required Zero Check. The System will automatically reset with each
fastening, and a Manual RESET activation between cycles could result in data loss.
The RESET signal requires a pulse of 200~500 milliseconds.
P The STOP input is Normally Closed, and enables all other functions. When STOP
is Open, all operations cease and all inputs and outputs become inactive.
P The READY signal enables Main Unit inputs and allows System operation.
P The START signal will not operate during RESET, REVERSE, OFFSET CHECK,
SELF-CHECK, or ABNORMAL signal activation. The START signal requires a
pulse of 200~500 milliseconds.
P When the ABNORMAL signal is active, all other signals are disregarded. RESET
is an exception, because RESET must be input to clear an Abnormal output.
P REJECT, ACCEPT, ABNORMAL, READY, and BUSY output signals must be
interlocked with BANK 1 and activated only when BANK 1 (Main) is selected.
P When a BYPASS signal is input to the Axis Unit from the PLC, the Axis Unit will
return a BYPASS output signal as a confirmation. When making the final fastening
judgment, the Main Controller does not consider the status of Axis Units set to IN
BYPASS. Axis Units should be monitored to ensure that all required spindles are
functioning, and that none have been bypassed in error. The PLC can be
programmed to output a message whenever an "active" spindle has been set to IN
BYPASS, or the equipment operator can visually monitor each Axis Unit.
Chapter 4: System Setup and Wiring User Console Version A3.53
Page 4-21