4 signal timing chart, Signal timing, Chapter 4: installation & wiring – FEC AFC1500 User Manual

Page 42: Stop, Ready, Reset, Reverse, Start, Fastening, Fastening operation fastening operation

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AFC1500 Multi-2 Unit Hardware Manual (Rev. 2)

PAGE 4 - 18

Chapter 4: Installation & Wiring

4.7.4 Signal Timing Chart

Signal Timing

STOP

OFF

ON

READY

OFF

ON

RESET

OFF

A

ON

REVERSE

START

OFF

A

ON

FASTENING

Fastening

Operation

Fastening

Operation

BUSY

OFF

ON

ACCEPT

OFF

ON

REJECT

OFF

ON

ABNORMAL

OFF

ON

END

OFF

ON

COUNT UP

OFF

A

ON


Because the RESET input clears all fastening 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 fastening start. A manual RESET activation between cycles could result in data loss.

The REVERSE signal must be maintained for the duration of the desired REVERSE function.

The STOP input is normally closed and enables all other functions. When open (OFF), all

operations cease and all inputs / outputs become inactive.

The START signal will not operate during RESET, REVERSE or ABNORMAL signal activation. A

pulse of 200~500 milliseconds is required for AUTO START mode. For DEADMAN mode (Used

mainly in handheld applications), the signal must be maintained for the complete fastening cycle

(until BUSY goes low).

When the ABNORMAL signal is activated, the system must be RESET before normal operation will

resume.

REJECT & ACCEPT signals are maintained until the start of the next cycle or on a RESET.

READY indicates when the system is ready to start.

It is recommended when changing sequences that the Sequence 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.

Seq. Sel. Bit 0

OFF

ON

Seq. Sel. Bit 1

OFF

ON

Seq. Sel. Bit 2

OFF

ON

Seq. Sel. 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 20ms to interlock the Sequence Select
Command and the associated result signal.

Sequence Select No. 6
(Multi-2 Inputs)

Sequence No. 6 Selected
(Multi-2 Outputs)

* No bit selected = Sequence No. 1

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