BNC-446
CNC LATHE
OPERATION MANUAL
NCT Ipari Elektronikai Kft.
9/95
Date: 08.10.2015
H-1148 Budapest, Fogarasi út 7.
Tel.: +36 1 467 6300
www.nct.hu
Desirable Independent Grounding
Earth resistance: Less than 100 ohms
Common grounds
Resistance to ground = 100 the number of devices connected to the grounding
(Q)
Never ground equipment as shown in the left side figure
1.4.3.
Environmental conditions
Generally, the machine will be installed on the following conditions. However, these may
change over a period of time or in response to seasonal changes.
1.
Supply voltage:
90% to 110% of nominal supply voltage
2.
Source frequency:
+2 Hz of nominal frequency
3.
Ambient temperature:
0 °C to 45 °C (32 °F to 113 °F)
4.
Relative humidity:
Less than 80%
Temperature changes should not cause condensation.
5.
Atmosphere:
Free from excessive dust, acid fumes corrosive gases and salt.
6.
It should be avoided to expose the machine to direct sunlight or heat rays which can
change the environmental temperature.
7.
Avoid exposing the NC machine to abnormal vibration.
If it is difficult to observe meet these conditions, contact us immediately.
1.5.
Safety precautions
This machine is provided with a number of safety devices to protect operator and equipment
from being injured and damaged. Operators should not, however, rely solely upon these safety
devices but should operate the machine after fully understanding what special precautions to
take by reading the following remarks thoroughly.
Basic operating practices
DANGER!
1.
Some control panels, transformers, motors, junction boxes and other parts have high-
voltage terminals, these should not be touched or a severe electric shock will be sustained.
2.
Do not touch a switch with wet hands. This, too, can cause an electric shock.
WARNING!
1.
The emergency stop push-button location should be well known so that it can be operated
at any time without having to look for it.
2.
Before replacing a fuse, switch off the machine.
3.
Provide sufficient working space to avoid hazardous falls.
