2 - 6 Operation Requirements 704-0212-209 VM Series Maintenance and Safety Manual
Machinery Safety
The Hurco machine’s safety circuit is designed to provide safe and reliable operation.
Tamper-resistant fasteners are used to hold combination door lock/switches in place and
to prevent access to internal wiring.
If the owner or operator modifies the hardware or software by removing, altering,
disabling, or tampering with any safety circuit, safety switch, or other safety operation
and operates the machine with those modifications, such operation is extremely
hazardous and is a foreseeable misuse of the machine, and voids the Hurco warranty. In
addition, it may be in violation of federal or local regulations, directives, codes, or
ordinances. If such modifications are discovered, the machine must be immediately shut
off and not used. Contact a Hurco-certified Service Engineer for assistance in restoring
the machine to safe operation.
Following are basic rules governing operation. Please refer to Operation Requirements,
on page 2 - 7 for details about operation limitations with doors open.
• The spindle cannot operate unless all enclosure doors are closed, excluding
doors that are fastened shut with bolts or screws.
• When the Limited Manual Operations are Enabled in the CE Diagnostics
screen, the spindle can be run and the axes can be jogged with the enclosure
door open at a limited RPM when the Start Cycle button is pressed and held
down.
• Enclosure doors must be closed and locked during automatic operation, such
as run program, warm-up cycle, calibration cycle, automatic tool changes, or
probing.
• In the event that an enclosure door is opened during automatic operation, an
immediate command to stop all motion will be executed, changing modes
from Auto to Interrupt.
• Redundancy is included in electrical design to detect single point failures
(e.g., switch contact, relay coil).
• After turning off control power, and after a deceleration delay of
approximately 7 to 10 seconds, the spindle drive will be disabled.
• When the Emergency Stop button is pressed, power is removed from the
spindle and axis drives, and the door locking mechanism is enabled.
• ATC electrical circuits will be isolated from source power when any door is
open.
Pressing the Emergency Stop button will lock the enclosure doors.
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