5
ND 120 QUADRA-CHEK
Installation Instructions
Complete Operating Instructions available at
www.heidenhain.de
Notice
Do not engage, or disengage any connections while the unit is under power.
Damage to internal components may result.
Notice
It is necessary to connect the earth (ground) terminal on the rear of the product
to the star point of machine ground. Minimum cross section of the connecting
wire: 6 mm
2
. Never use this equipment without proper grounding.
Electrical connection
Warning! Risk of electrical shock
A risk of electrical shock exists if this product is not properly grounded.
To avoid the hazard, always use a 3-conductor (grounded) power cord and
ensure the ground is properly wired to the building installation.
Warning! Risk of fire
A risk of fire exists if a power cord not meeting minimum specifications is
used.
To avoid the hazard, always use power cords that meet or exceed the minimum
listed specifications.
Connecting a power cord
To connect a power cord:
X
X
Verify that the power switch is in the off position
X
X
Verify that the power cord is not plugged into the main power supply
X
X
Insert the female end of the power cord into the power connector on the rear of the
product
Data interface connections
Notice
This product contains components that can be damaged by
electrostatic
discharge (ESD)
. Observe precautions for handling ESD sensitive devices and
never touch connector pins unless properly grounded.
Connecting an encoder
This product can be used with HEIDENHAIN linear, and rotary encoders that provide
digital TTL level signals. The connecting cable must not exceed 30 meters in length.
To connect an encoder:
X
X
Verify that the power switch is in the off position
X
X
Connect the axis encoder tightly to its connector. An input label is provided near the
connector.
Connecting a USB cable
The USB port is used to communicate with a computer. For more information on USB
communications, refer to the
ND 120 QUADRA-CHEK Operating Instructions
.
To connect a USB cable:
X
X
Verify that the power switch is in the off position
X
X
Connect a computer USB port to the products USB port located on the rear of the
product, using a USB (type A) to USB (type B) cable
Observe ESD handling precautions
5
Encoder connector
4
USB connector
Summary of Contents for ND 120 QUADRA-CHEK
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