OPERATING INSTRUCTIONS
4618 - 021
99
tm3[G] TIMER - GATED MODE
!
CAUTION
Ensure you have read the REJECT TIMERS
INTRODUCTION section on page 78
Introduction
The tm3G timer is used on variable speed product
lines or product lines that may be stopped or started
by external equipment.
The tm3G gated timer is used to give precise rejection
of packaged or individual products.
The use of gating via a pack sensor ensures that the
rejection is independent of the position or size of the
metal contaminant.
This timer type is suitable for reject devices which
include air-blast diverters, drop/lift flap diverters etc.
NOTE
Remember to record all settings on the Settings
Sheets at the rear of the manual.
NOTE
EXPLANATORY NOTE
The tm3 and tm3G timer modes continually refer to
terms such as 'SIGNAL SHIFT', 'REJECT SHIFT',
'SYNC SHIFT' etc. The word shift when used in these
context refers to the distance the product will move (or
shift) between successive pulses on the speed sensor
input. Thus if a speed sensor has a shift of 10 cm
then a REJECT SHIFT of 5 is equivalent to a product
moving a distance of 5x10 cm = 50 cm.
For instructions on calculating the shift distance for
your application refer to Appendix A.
tm3G settings
1)
Signal Shift
This is the number of speed sensor pulses taken
for a metal contaminant to travel from the metal
detector to the reject device.
2)
Reject Time
This is the time required by the reject device to
reject the contaminated product.
3)
Window Shift
This number is equal to twice the number of
speed sensor pulses a single pack takes to pass
by the pack sensor
This value is measured and calculated
automatically by the detector during the timer
setup.
4)
Sync Shift
This is the number of speed sensor pulses taken
for the pack to travel from the pack sensor to the
reject device.
Содержание Signature
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Страница 26: ...INSTALLATION 10 4618 021 Fig 5 Typical Metal Detector Conveyor ...
Страница 31: ...INSTALLATION 4618 021 15 Fig 10 Cable Gland Assemblies for Power Supply Unit ...
Страница 52: ...OPERATING INSTRUCTIONS 36 4618 021 Fig 14 Supervisor Mode Flow Chart ...
Страница 55: ...OPERATING INSTRUCTIONS 4618 021 39 Fig 15 Engineer Mode Flow Chart ...
Страница 71: ...OPERATING INSTRUCTIONS 4618 021 55 Fig 16 Pack Sensor Mode Flow Chart ...
Страница 82: ...OPERATING INSTRUCTIONS 66 4618 021 Fig 18 QA Inspector And Operator Flow Chart ...
Страница 92: ...OPERATING INSTRUCTIONS 76 4618 021 Fig 19 Viewing Mode Flow Chart ...