ITOH DENKI CBV30 - Page 12

12
Safety precautions
Advance preparation
Check ProductInstallation/Wiring
Maintenance/Inspection
Specifications Control/Operation
4. Advance preparation
Theotherdevicesneedtobeprepared
■
The safety circuit includes the emergency stop equipment and magnet
contactor.
CBV30
24VDC
powersupplyunit
Safetycircuit
Breaker
ACpower
■
As for the sensor input, and input/output signals of driver cards, adopt
the number of inputs/outputs based on operation.
MDR
Controller,
suchasPLC
CBV30UserManual
Wiring image
Environment for installation
The described devices in this manual are defined as “Open Type” complying with
UL61800-5-1 standard. Therefore, in order to conform to UL on the installation,
the devices must be installed in the proper enclosure, which tooling to open must
be required to restrict access inside to prevent unintended contact failure.
Reference: Required enclosure structure in general.
As far as general motorized roller conveyor, driver card and its wiring are
protected by the enclosure that is composed of conveyor frame and frame cover
as drawing below. Due to this enclosure, the worker has to use tooling for inten-
tional opening the frame cover. The protective level of this enclosure must be
conformed to UL50 Type 1 or over.
Motorized roller
Sensor
Frame Cover
(It is usually made from nonflammable plastic or steel, and removed from conveyor using tool.)
Example of general enclosure’s structure
Following is conditions to comply UL standard
Idler
Idler
CBV30
（
It is usually made from
aluminum or steel,
）
Frame