VM 500
VERSION 09/2018
ORDER NUMBER DOC 2318724
20
6.5
LOCATION OF THE CONTROL UNIT
DANGER
Incorrect installation of the device!
Explosion hazard and damage to the device.
Set up the device outside the spray booth/spray zone.
If possible, set up the device outside the Ex zone (Ex zone 2 is permissible).
Protect the device from significant temperature and moisture changes.
Protect the device from contamination.
Lay and fix the connecting cable correctly.
Ensure that the local mains voltage and tension of the device match.
WARNING
Sparks form when live components are separated or connected!
Explosion hazard from electric sparks.
Do not disconnect plug connections under voltage.
Do not open fuse holders under voltage.
Do not remove the service plug cover under voltage.
All sealed elements on the control unit must be present and undamaged. During operation,
all electric connections of the control unit have to be tightly sealed with the corresponding
plug connectors or closing elements. While under voltage, neither plug connectors nor
closing elements may be separated or opened.
6.6
GROUNDING
Perfect grounding of all conductive parts such as floors, walls, roofs, barriers, work pieces,
transport devices, coating product tank, coating product supply or construction parts
in the spray area with exception of the high-voltage parts during normal operation is
important for optimum coating and safety.
Parts of the booth must be grounded in accordance with EN 12215.
A poorly grounded work piece causes:
- very bad wrap around
- uneven coating
- back spraying to the spray gun (contamination) and coater
Prerequisites for perfect grounding and coating are:
- Clean suspension for the workpiece to be coated.
- Grounding of spray booth, conveyor system and suspension equipment on the building
side in accordance with the operating manuals or the manufacturer's information.
- Grounding of all conductive parts within the working area.
- The grounding resistance of the work piece may not exceed 1 MΩ (megohm).
(Ground leakage resistance measured at 500 V or 1000 V)
- Connect the control unit to the signal ground.
- Connect all grounding cables using a short and direct route.
- Safety shoes and gloves, if used, must be static dissipative.
