EUCHNER HKD - Manual (Page 3)

Operating instructions for electronic handwheel HKD
Safety precautions
EUCHNER handwheels HKD meet the EMC protection
requirements according to EN 61000-6-2 and
EN 61000-6-4.
Handwheels HKD must not be used for residential
applications, in business or commercial areas or
in small businesses.
The operator of the overall higher-level system is
responsible for conformity with the national and
international safety and accident prevention
regulations applicable to the special application.
When designing machines and using handwheels,
the national and international safety and accident
prevention regulations specific to the application
must be observed, e.g.:
EN 60204, electrical equipment of machines
EN ISO 12100, safety of machines, general
design principles
EN ISO 13849-1, safety-related parts of control
systems
Appropriate safety measures must be taken
to prevent a malfunction of the handwheel
which could cause danger to human beings
or damage to operating equipment.
Correct use
The EUCHNER handwheel is a universal pulse
generator for manual shaft positioning.
The handwheel is primarily used for positioning NC-
driven machine tools during set-up.
Handwheels are used as part of an overall higher-
level control system.
Their use, installation and operation are permissi-
ble only in conformity with these Operating Instruc-
tions.
Incorrect use
Handwheels on their own must not be used as
safety components for avoiding hazardous states
in a machine installation.
Function
Two square-wave outputs of 100 or 25 pulses per
revolution are available for the user.
A second phase-shifted output allows the connec-
ted control to detect the direction of movement.
The pulses are evaluated in the control.
The detent mechanism is magnetic and is therefore
totally wear-free.
Assembly
The unit may only be assembled by authorised
personnel.
The handwheel is installed with 3 M4 screws
(available as accessories).
Fig. 1: Handwheel installation
Electrical connection
Electrical connection may only be performed by
authorised personnel trained in EMC with the
machine switched off and in de-energised
state.
The machine must be safeguarded against
reactivation.
If connected incorrectly, the handwheel
may be damaged.
Observe electrical characteristics and the pin
assignments (see technical data)
Always shield connecting leads.
Ground the shield at the end of the lead at a central
grounding point, e.g. in the distribution board or in
the control cabinet, over a large surface, with low
resistance and with low inductance.
Original connecting leads must not be shortened.
Do not install connecting leads in the immediate
vicinity of interference sources.
When installing connections, the operator must
ensure compliance with the EMC safety require-
ments.
Authorisation according to : operation with
power supply of UL-class 2 only, housing type
UL-type 1.
Service and inspection
EUCHNER handwheels require no maintenance.
Handwheels may only be repaired by the manufac-
turer.
To clean the handwheels, only use solvent-free
cleaning agents and a soft cloth.
Disclaimer of liability
The company does not accept liability regarding
the following cases:
if the unit is not used for its intended purpose
if the safety instructions are not followed
if the units are electrically connected by unautho-
rised personnel
if the units are tampered with
Instructions for counting the handwheel
pulses: Handwheel HKD
The following options are recommended for coun-
ting the handwheel pulses:
suitable counter module
phase discriminator
Do not open the
handwheels!
Do not throw or drop the
handwheels!
Do not hit the handwheels!
Do not use tools on the
handwheels!