Rockwell Automation 440L GuardShield Type 4 and Remote Teach User Manual - Manual (Page 17)

R
GuardShield™ Safety Light Curtain User Manual
15
Original instructions
Optional Middle Mounting Bracket (440L-AF6108)
Figure 10: Middle mounting brackets
Note: Middle mounting brackets should be used in vibration
applications for protective heights of 1120 mm and larger.
GuardShield Remote Teach Receiver Bracket
Figure 11: Remote teach receiver bracket
Electrical Installation
Connections
Power Supply
The external voltage supply (+24V DC) must meet the requirements
of IEC 61496-1. In addition, the following requirements have to be
fulfilled:
• A short-term power failure of 20 ms must be bridged by the
power supply.
• The power supply has double insulation between the primary
and the secondary side.
• The power supply is protected against overload.
• The power supply corresponds to the guidelines of the EWG
(industrial environment).
• The power supply corresponds to the Low Voltage Directives.
• The grounded conductor of the power supply device must be
connected to a grounded conductor PE.
• The maximum deviation of the voltage levels is 24V DC +/-
20%.
EDM Connection
Figure 12: Connecting the contact elements to the EDM
Figure 13: Connecting the reset button/restart button
49.2 (1.93)
40.2
(1.58) 62
(2.44)
24
(0.94)
30 (1.18)
20 (0.78)
Double insulation
This part of the insulation provides
supplementary insulation against
hazardous voltage levels.
Motor, etc.
Hazardous voltage level
Basic insulation
Hazardous voltage
level
Hazardous voltage
level
Reinforced
insulation or
double insulation
Unit 1
Power Supply
Unit 2
Output (pink and
grey)
Basic insulation
(See note.) Basic insulation
0V (blue)
+24V (brown)
K1 K1 K2 K2
Guard
Shield
24V
Pin 4 5
6
K1
K2
k2 k1
Contactor Contacts
Contactor
Coils
Not available for GuardShield with ArmorBlock
Guard I/O connectivity.
IMPORTANT
Reset/restart button
Pin 8
24V