User Manual

Publicatio n 1000-UM001B-US-P - July 20 00
Certification Documentation A-19
Table A.F LED Explanation
Item Description Indicator Explanation
1 Power Su pply LED DC on w hen 120V is applied
2 C ontr ol Transformer
Sec. Fuse
Blown
Fuse
On when fuse is blown
3 C ontr ol 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 S 10 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 S 10 to S11 is closed
because all SLS switches are in the ON
position
•
CH2 on when circuit S 10 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 vo ltage L1 to grou nd is above 10V
•
VL2-N on vo ltage L2 to grou nd is above 10V
•
VL3-N on vo ltage L3 to grou nd is above 10V
•
SYSTEM FAI LU R E on when on e of the e ight
volt age sen sin g connections is open or
there is an inte rnal fault in the PU3Z
•
VOLTAGE HAZARD on when measured
vol tage is gr eate r 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 Termi na l Blo ck LED On when IC and 1CR are off , PVSR ou tp ut 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