FEC DSP1500 Main Unit - Manual (Page 43)

enFORCE DSP1500 Main Unit Hardware Manual
PAGE 5 - 3 (Rev. 4.0)
Chapter 5: Control Interfaces
5.2 Signal Timing Charts
5.2.1 Sequence Operation
Signal Timing
STOP OFF
ON
READY OFF
ON
RESET OFF A
ON
START OFF
ON
(PRESSING)
Pressing
Operation
Pressing
Operation
BUSY OFF
ON
ACCEPT OFF
ON
REJECT OFF
ON
ABNORMAL OFF
ON
END OFF
ON
COUNT UP OFF A
ON
ƒ Because the RESET input clears all pressing data and discrete outputs, it should only be
activated to clear a system Abnormal or to perform a Zero Level Check. The system will
automatically reset with each press start. A manual RESET activation between cycles could
result in data loss.
ƒ The START signal will not operate during RESET, HOME or ABNORMAL signal activation. The
START signal must be maintained for the duration of the pressing cycle (until BUSY goes low).
ƒ The STOP input is normally closed and enables all other functions. When open (OFF), all
operations cease and all inputs / outputs become inactive.
ƒ When the ABNORMAL signal is activated, the system must be RESET before normal operation
will resume.
ƒ REJECT & ACCEPT signals are maintained until the start of the next cycle or on a RESET.
ƒ READY indicates when the system is ready to start.
ƒ It is recommended when changing sequences that the Select outputs be used to verify that the
sequence has been changed before issuing a start signal. Delay from Sequence Select input to
Sequence Select output is approximately 5ms.
Sequence Select Timing
Select Bit 0 OFF
ON
Select Bit 1 OFF
ON
Select Bit 2 OFF
ON
Select Bit 3 OFF
ON
Bit 0 Selected OFF
ON
Bit 1 Selected OFF
ON
Bit 2 Selected OFF
ON
Bit 3 Selected OFF
ON
START OFF
ON
200 ~ 500ms (A)
Allow a minimum of 20ms to interlock the
Sequence Select Command and the Start signal.
Sequence No. 6 Selected
(Main Outputs)
* No bit selected = Sequence No. 1
Sequence Select No. 6
(Main Inputs)