Rockwell Automation 1000 Safety Lockout System - Manual (Page 49)

Publication 1000-UM001B-US-P - July 2000
Certification Documentation A-19
Table A.F LED Explanation
Item Description Indicator Explanation
1 Power Supply LED DC on when 120V is applied
2 Control Transformer
Sec. Fuse Blown
Fuse On when fuse is blown
3 Control Transformer
(2) Pri. Fuses Blown
Fuse On when fuse is blown
4 Safety Relay 1SR LED
•
POWER on when 24V DC is applied
•
CH1 on when circuit S10 to S11 is closed
•
CH2 on when circuit S21 to B2 is closed
•
K1 on when internal relay K1 is energized
•
K2 on when internal relay K2 is energized
5 Safety Relay SR LED
•
POWER on when 24V DC is applied
•
CH1 on when circuit S10 to S11 is closed
because all SLS switches are in the ON
position
•
CH2 on when circuit S10 to S11 is closed
because all SLS switches are in the ON
position
•
K1 on when internal relay K1 is energized
•
K2 on when internal relay K2 is energized
6 Pilz Relay PVSR LED
•
POWER on when 24V DC is applied
•
VL1-L2 on voltage L1 to L2 is above 10V
•
VL2-L3 on voltage L2 to L3 is above 10V
•
VL1-L3 on voltage L1 to L3 is above 10V
•
VL1-N on voltage L1 to ground is above 10V
•
VL2-N on voltage L2 to ground is above 10V
•
VL3-N on voltage L3 to ground is above 10V
•
SYSTEM FAILURE on when one of the eight
voltage sensing connections is open or
there is an internal fault in the PU3Z
•
VOLTAGE HAZARD on when measured
voltage is greater than 10V
7 ++ Terminal Block LED On when the timer contact is closed
8 – Terminal Block LED On when the 24V DC power supply output is
on
9 12 Terminal Block LED On when IC and 1CR are off, PVSR output is
closed, and an SLS switch is off
10 Timing Relay TR LED On when time delay is complete and output
N.O. contact is closed