Banner MULTI-BEAM Series - Manual (Page 4)

2PBR Power Blocks
L1 L2
V ac
1 2
3 4
Load
V ac/dc
Figure 9. Connections
Regulated
Power Supply
2
1
AC Supply
Voltage
Drive
Circuit
A
C
D
+
−
+6 V dc
Common
No Connection B
Signal from
Logic Module
on
off
Power to 2-Wire Logic Module
& Scanner Block
CR
3
4
CR
Relay Contact
5 Amp Max.
Figure 10. Functional Schematics
L1 L2
105–130 V ac
1 2
3 4
Load
250 V ac max.
30 V dc max.
5 amp max.
2PBR
Figure 11. Wiring for 2PBR Power Block
Model 2PBR requires a 4-wire hookup, even though it only works with 2-wire scanner
blocks and logic modules. It is powered by 120 V ac across terminals 1 and 2, and offers an
SPST "hard" relay contact between terminals 3 and 4. This configuration allows a MULTI-
BEAM sensor to directly interface large loads that draw more than 3/4 amps, like clutches,
brakes, large contactors, and small motors.
The 2PBR also eliminates the problem of voltage drop from series strings of sensors
operating low voltage ac loads.
Install an appropriate value metal oxide varistor (MOV) transient suppressor across power
block terminals 3 and 4 when switching an ac inductive device.
Banner Engineering Corp Limited Warranty
Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following
the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture
which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty
does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR
IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR
TRADE USAGE.
This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO
EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR
ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR
SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE
PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY,
NEGLIGENCE, OR OTHERWISE.
Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any
obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp.
MULTI-BEAM 2-Wire AC Power Block Modules
www.bannerengineering.com - tel: 763-544-3164