5
STATUS OF CONTACTSSTATUS OF CONTACTS
Status of control unitStatus of control unit
GUARDGUARD CLEARCLEAR BREAKBREAK FAILFAIL FAIL (FAIL K1-K2)FAIL (FAIL K1-K2)
8-138-13
9-129-12
AU S-TWINAU S-TWIN
outputsoutputs
10-1110-11
K1-1K1-1
Relay K1Relay K1
K1-2K1-2
K2-1K2-1
Relay K2Relay K2
K2-2K2-2
INDICATOR LIGHTSINDICATOR LIGHTS
UNITUNIT LED No.LED No. COLOURCOLOUR STATUSSTATUS INDICATIONINDICATION
AU S-TWINAU S-TWIN
STATUSSTATUS
1 Green On
Danger zone clear, AU S-TWIN
output relays closed
GUARD
2 Yellow On
Danger zone clear, AU S-TWIN
output relays open
CLEAR
3 Red On
Danger zone intercepted, AU S-
TWIN output relays open
BREAK
3 Red Flashing
System malfunction, AU S-TWIN
output relays open
FAIL
3 Red
AU S-TWIN
CONTROL
UNIT
4 Red
Flashing
External relays K1 and K2 fault,
AU S-TWIN output relays open
FAIL
(FAIL K1-K2)
(*) With AU S-TWIN in normal operating condition
1 2 3 4
Figure Figure 22
Indicator lights on the control unitIndicator lights on the control unit