48
420HE Installation Manual
1.10 Regulatory Mode Functions
1.11 LED Functions
The following is a list of diagnostic LEDs for the
420
Plus
. See Figure 1-3 7 for locations on the
420 Plus
CPU board.
Serial Port Status
LED1 (EDP Port)
Flashing red = TXD activity
Flashing green = RXD activity
On steady or off = No activity
LED2 (PRN Port)
Flashing red = TXD activity
Flashing green = RXD activity
On steady or off = No activity
Power Supply
LED (+5AV)
Excitation/ADC supply on
LED (+5V & +3.3V)
Digital logic supply on
Operation Status
LEDHB (Microprocessor)
Flashing green = Active
Red = Fault
LED AD (ADC)
Green = Active
Red = Fault
LED MEM (Memory Test)
Green = Pass
Red = Fail
LED ANA
Red = Not Implemented
(Analog Option Card)
Digital Input/Output Status
DO 1 (Digital Out 1)
On when lit (active low)
DO 2 (Digital Out 2)
On when lit (active low)
DI 1 (Digital In 1)
On when lit (active low)
DI 2 (Digital In 2)
On when lit (active low)
REGULAT
Parameter Value
Weight on Scale
Tare in System
Front Panel Key Function
TARE
ZERO
NTEP
zero or negative
no
no action
ZERO
yes
CLEAR TARE
positive
no
TARE
yes
TARE
CANADA
zero or negative
no
no action
TARE
yes
CLEAR TARE
positive
no
TARE
yes
no action
OIML
zero or negative
no
no action
ZERO
yes
CLEAR TARE
ZERO and CLEAR TARE
positive
no
TARE
ZERO
yes
TARE
ZERO and CLEAR TARE
NONE
zero or negative
no
TARE
ZERO
yes
CLEAR TARE
positive
no
TARE
yes
CLEAR TARE
Table 1-8. TARE and ZERO Key Functions for REGULAT Parameter Settings
Summary of Contents for Revolution SURVIVOR 420HE
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