Specifications

Proper wiring and grounding are essential for the longevity and proper operation of your

Accu-Coder

. In addition, electrical noise should be minimized to prevent improper counts

and/or damage to the electronic components.

Since an Accu-Coder

can be used with a wide variety of input devices (PLC’s, counters,

servo controllers, etc.), from many different manufacturers, it is important to determine proper

wiring and connections before installation.

Common Signals

Most Accu-Coder

encoders have the following electrical connections:

Power, Common or Ground, and one or more Output Signals.

Power (Also called supply, power source, encoder power, +V, or +VDC)

• Always use a direct current (DC) voltage.

• Attach power to the positive (+) side of the power source.

• Verify that the Accu-Coder

is receiving the proper voltage, since most electrical

failures are caused by an improper or improperly regulated power source.

• The use of surge protection is highly recommended.

Common (Also called Com, supply common, and ground)

• Attach common to the negative (-) side of the power source.

Output Signals (Always at least one, but may be as many as six)

• The most common are A, B, and Z. Commutation outputs include U, V, and W.

• Encoders with a Line Driver output also have the complement (A and A’, B and B’,

etc.) as separate outputs that are used to provide differential signals for reduced

noise and greater drive capability.

• Never connect the output signals together, or to the power source!

Connections

 • Verify and match up pin numbers, wire colors, or terminal blocks with the input device.

• Be aware that identification terminology may not always be identical.

• Once proper wiring is determined, document it for future reference.

Cable Routing

 •Cable length should be minimized by using the shortest route possible.

• All cabling should be installed in dedicated metal conduits, or located at least 12” away

from other wiring.

• Route cables away from high current conductors to minimize pulses caused by

electrical transients.

• Signal wire continuity should be maintained from the encoder to the controller/counter.

Avoid junctions and splices, if possible.

ELECTRICAL CONNECTION