Vicking electronics
Pag. 5
Input / Output
Relays
The timemate has the following relays :
•
Relays 1 has a normal open (NO) and a normal closed (NC) contact and drives up to 220V
1A.
•
Relays 2 has only a normal open (NC) contact.
•
Relays 3 driver is a pin on the ‘extra connection’ connector that can drive an external relay
with a 5V Coil.
•
Relays 4 driver is a pin on the green terminal block connector located on the processor board,
that can drive an external relay with a 5V Coil.
See the drawings at the end of the manual.
Be careful when switching inductive loads with the relays, when the power to a coil is switched
off it will generate a large voltage spike that can burn out the relays contacts, especially when
switching a DC voltage.
Never switch the primary coil of a 220V transformer, always place the relay contacts in the
secondary circuit.
Led’s
The timemate can drive 2 LED’s typically a green and a red.
Can be used to indicate correct or false input or other special applications.
Inputs
The timemate has 2 non isolated binary inputs located on the ‘Extra connection’ connector of
the power supply. And 1 isolated binary input located on the processor board.
Their main use is for connecting a switches to the timemate.
Connect a powerless switch between ‘switch input 1’ and ‘+5V for input’
or ‘switch input 2’ and ‘+5V for input’.
The isolated input can handle both powerless contacts or switched external voltages.
See the drawings at the end of the manual.
Card readers
Barcodes :
There are 2 barcodes ports, 1 for an internal reader and 1 for an external reader.
Both ports can be used simultaneously.
These codes are recognized : 2/5 interleaved, code 39, UPC and EAN bar-codes.
A CCD scanner can be programmed to translate other types of barcodes to Code 39.
You can connect :
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Barcode badge reader for infrared or visible light
−
Barcode wand
−
CCD scanner.
