20
2.2
Digital Control Board
The A77 is equipped with a microprocessor controller. This makes the A77 more user friendly and provides new
helpful features to the user.
After the A77 has completed the startup sequence, the “AC ON” and “FLOAT” LEDs should be on and the
display should show the output voltage and current as pictured above in Figure 13. The parameter displayed
can be changed by pressing either the UP or DOWN arrows on the membrane.
The parameters viewable on the “idle display” (sequence assuming only the down arrow is used) are as follows:
System DC Output
Temperature of SCR
Heatsink
Output Voltage Balance
*Only available as part of option 19U
Internal/External Probe
Temperature
Ground Current
*Only available as part of option 19U
Temperature
Compensation Status
Phase 3 AC Metering
*Only available as part of option 19V
Unit Clock Date and
Time
Phase 2 AC Metering
*Only available as part of option 19V
Equalize Timer Status
and Length
Phase 1 AC Metering
*Only available as part of option 19V
Time Until Next Equalize
Cycle
Charger AC Input
Selected Equalize Timer
Mode
Logging Status
Voltage 130.8 V
Current 19.1 A
Over Temp Probe
34C/94F
POS-GND 65.4 V
GND-NEG 65.4 V
Temp Comp Probe
31C/87F
POS GND 0.00 mA
NEG GND 0.00 mA
Temp Comp
OFF
PHASE3 241.3 VAC
/LINE3 10.3 AAC
Date 2/5/2015
Time 11:54:19
PHASE2 241.3 VAC
/LINE2 10.2 AAC
EQ Timer OFF
8 Hour EQ
PHASE1 241.4 VAC
/LINE1 10.3 AAC
Next Auto EQ in:
OFF
AC Voltage
241.4V 60.0Hz
EQ Timer Mode PO
Auto EQ OFF
Logging Status
Not Enabled
Figure 13 – A77 Front Panel
Содержание A77
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