Initial electrical connections, Apply power to each emitter/receiver pair (see – Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 27
Sensor QD cabling and any interconnect wiring should meet the following specifications. The wires used should have an insulation tem-
perature rating of at least 90°C (194°F).
Maximum Machine Interface cable length versus total current draw (including both OSSD loads)
Cable Size
Current Draw
0.5A
0.75A
1.0A
1.25A
0.823 mm
2
(18 AWG)
375'
250'
188'
148'
0.518 mm
2
(20 AWG)
240'
160'
120'
95'
0.326 mm
2
(22 AWG)*
150'
100'
75'
59'
NOTE: Cable length includes power (+24V dc) and return (0V dc) wires at +25˚C, and is intended to ensure
that adequate power is available to the EZ-SCREEN Type 2 System when the supply is operating at +24V dc -
10%.
Initial Electrical Connections
WARNING: Proper Electrical Hookup
Electrical hookup must be made by Qualified Personnel and must comply with NEC (National Electrical
Code) and local standards.
Connection of other wiring or equipment to the EZ-SCREEN Type 2 System could result in an increased
risk of harm.
Lockout/tagout procedures may be required (refer to OSHA1910.147, ANSI Z244-1, or the appropriate standard for controlling hazardous
energy). Following relevant electrical standards and wiring codes, such as the NEC, NFPA79 or IEC60204-1, always connect earth
ground (green/yellow wire. Do not operate the EZ-SCREEN Type 2 System without an earth ground connection.
Make the electrical connections in the order described in this section. Do not remove end-caps; no internal connections are to be made.
All connections are made through the M12 Eurostyle quick-disconnects.
Emitter Cordset
Receiver Cordset
EZ-SCREEN Type 2 emitters have an 8-pin cordset, but only three
conductors are required:
• Brown = +24V dc
• Blue = 0V dc
• Green/Yellow = GND
Do not connect any wires to the machine control circuits (that
is, OSSD outputs) at this time.
For the initial checkout, only the following EZ-SCREEN Type 2 re-
ceiver conductors should be connected:
• Brown = +24V dc
• Blue = 0V dc
• Green/Yellow = GND
Additionally, connect the external reset switch, if used, or test sig-
nal contact to the Reset/Test wire (violet) and to 24V dc.
NOTE: The reset switch must be a normally closed switch that is held open for approximately 1/4 second, then
closed to accomplish the reset. The switch must be capable of switching 10 to 30V dc at 30 mA.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
122452 rev. B
www.bannerengineering.com - tel: 763-544-3164
27