Electrical installation and testing, Routing cordsets – Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 26
Electrical Installation and Testing
As with the previous section, it is important that you read, understand and follow the electrical installation and testing procedure as de-
scribed in the following subsections.
WARNING: Read this Section Carefully Before Installing the System
If all mounting, installation, interfacing, and checkout procedures are not followed properly, the EZ-
SCREEN Type 2 cannot provide the protection for which it was designed. The user has the responsibility
to ensure that all local, state, and national laws, rules, codes, or regulations relating to the installation and
use of this control system in any particular application are satisfied. Extreme care should be taken to en-
sure that all legal requirements have been met and that all technical installation and maintenance instruc-
tions contained in this manual are followed.
The user has the sole responsibility to ensure that this EZ-SCREEN Type 2 is installed and interfaced to
the guarded machine by Qualified Persons, in accordance with this manual and applicable safety regula-
tions.
There following are the main steps to electrically install the EZ-SCREEN Type 2 components and interface with the guarded machine:
1. Apply power to each emitter/receiver pair (see
Initial Electrical Connections
on page 27).
2. Perform and Initial Checkout Procedure (see
on page 28).
3. Make all electrical interface connections to the guarded machine (see
Electrical Connections to the Guarded Machine
on page
34).
4. Perform a commissioning checkout procedure (see
on page 38).
Routing Cordsets
Connect the QD connectors and route the sensor cables to the junction box, electrical panel, or other enclosure in which the Interface
Module, the redundant mechanically linked interposing relays, FSDs, or other safety-related parts of the control system are located. This
must be done per local wiring code for low-voltage dc control cables and may require installation of electrical conduit. See
page 57 for selection of Banner-supplied cordsets.
The EZ-SCREEN Type 2 is designed and manufactured to be highly resistant to electrical noise and to operate reliably in industrial
settings. However, extreme electrical noise may cause a random Trip or Latch condition; in extreme cases, a Lockout is possible. Emitter
and receiver wiring is low voltage; routing the sensor wires alongside power wires, motor/servo wires, or other high-voltage wiring may
inject noise into the EZ-SCREEN Type 2 System. It is good wiring practice (and may be required by code) to isolate emitter and receiver
cables from high-voltage wires, avoid routing cables close to “noisy” wiring, and provide a good connection to earth ground.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
26
www.bannerengineering.com - tel: 763-544-3164
122452 rev. B