117
SERIES 8000 BOARD LED RELAY FUNCTION
POWER SUPPLY
(772039)
+30VAC LED2 GREEN, AC OUTPUT FROM TRANSFORMER.
SHEET 1 +27VDC LED4 GREEN, RECTIFIED, UNREGULATED SUPPLY.
F5 LED3 YELLOW, ON WHEN FUSE IS BLOWN.
LIGHT SUPPLY
LED1
GREEN, 27VAC LIGHTING SUPPLY
OVERLOAD
LED6
YELLOW, ON WHEN MWTC OR OL1 OPEN.
DOWN VALVE
LED5
RED ON WHEN DOWN SIGNAL PRESENT.
REGULATOR
(772022)
F4 LED3 GREEN, ON WHEN FUSE IS GOOD.
SHEET 3 F5 LED4 GREEN, ON WHEN FUSE IS GOOD.
F6 LED5 GREEN, ON WHEN FUSE IS GOOD.
F7 LED6 GREEN, ON WHEN FUSE IS GOOD.
+27V LED1 GREEN, ON WHEN REGULATED SUPPLY AVAILABLE
TO SYSTEM.
AL LED7 RED, AUTO LIGHT (AL) RELAY INDICATOR. ON WHEN
AUTO-LIGHT IS OFF.
AL SWITCHES CAB LIGHTING ON AND OFF.
EM LED9 RED, EMERGENCY POWER (EM) RELAY INDICATOR.
ON WHEN AC LIGHTING SUPPLY PRESENT TO POWER
SUPPLY BOARD.
EM SWITCHES ON EMERGENCY LIGHTS AND TURNS OFF
EM1 RELAY, ON TIMER, WHEN LIGHTING SUPPLY NOT
PRESENT.
LVC LED8 RED, LOW VOLTAGE CUT-OFF (LVC) RELAY
INDICATOR.
LVC SHUTS DOWN ENTIRE SYSTEM WHEN BATTERY
SUPPLY DROPS TOO LOW DURING POWER FAIL
CONDITION.
SYS CALL
LED2
GREEN, INDICATES SUPPLY THROUGH SAFETY
CIRCUIT TO CALLS.
OUTPUT (772005)
SHEET 11
GATE OPEN
LED904
RED, ON WHEN GATE IS OPEN.
SHEET 12 DZ LED901 RED, DOOR ZONE (DZ) RELAY INDICATOR. ON WHEN
DOOR ZONE SIGNAL PRESENT FROM OPTO-READER OR
SWITCHES.
DZ ENABLES LEVELLING.
SHEET 12 LU LED902 RED, LEVEL UP (LU) RELAY INDICATOR. ON WHEN
LEVELING UP.
LU SWITCHES UP SIGNAL WHEN IN DOOR ZONE.
SHEET 12 LD LED903 RED, LEVEL DOWN (LD) RELAY INDICATOR. ON WHEN
LEVELING DOWN.
LD SWITCHES DOWN SIGNAL WHEN IN DOOR ZONE.
SHEET 11 UP2 LED913 RED, UP PILOT 2 (UP2) RELAY INDICATOR. ON WHEN
“UP PILOT” SIGNAL PRESENT AND DOORS CLOSED.
UP2 SWITCHES UP SIGNAL FOR TRAVEL AND POWER TO
PUMP UNIT CONTACTORS.
SHEET 11 DP1 LED905 RED, DOWN PILOT 1 (DP1) RELAY INDICATOR. ON
WHEN “DOWN PILOT” SIGNAL PRESENT AND DOORS
CLOSED.
DP1 SWITCHES DOWN SIGNAL FOR TRAVEL AND POWER
TO DOWN SOLENOID.
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