Electrical Specifications
Atlas
®
Digital Amplifier Complete Technical Reference
37
3
3.11.1 Atlas Settings Defaults and Limits
The following table provides default and limit values for all Atlas units.
Unit
All Low Power
Atlas
All Medium
Power Atlas
All High Power
Atlas
Example Usage
Amps
.231 mA/count
.763 mA/count
1.526 mA/count
To command a torque of 3.5A
to the high power Atlas a value
of 3,500mA/1.526mA/count =
2,294 counts is specified.
Volts
1.361 mV/count
1.361 mV/count
1.361 mV/count
A command request to read the
Atlas unit’s DC Bus voltage gives
a value of 12,345. This corre-
sponds to a voltage of 12,345
counts * 1.361 mV/count = 16.8
volts.
Temperature
.0039°C/count
.0039°C/count
.0039°C/count
A command request to read the
Atlas unit’s internal temperature
gives a value of 7,890. This cor-
responds to a temperature of
7,890 counts * .0039°C/count =
30.8°C.
Foldback Energy .0059 A
2
sec/count
.064 A
2
sec/count
.256 A
2
sec/count
To command a foldback energy
of 50A
2
sec to the high power
Atlas a value of 50A
2
sec/.256
A
2
sec/count = 195 counts is
specified.
Quantity
All Low
Power Atlas
All Medium
Power Atlas
All High
Power Atlas
Overtemperature
Overtemperature Limit
Default:
75.0°C
Default:
75.0°C
Default:
75.0°C
Low Limit: 0
Low Limit: 0
Low Limit:
0
High Limit: 75.0°C
High Limit: 75.0°C
High Limit:
75.0°C
Overtemperature Hysteresis
Default:
5.0°C
Default:
5.0°C
Default:
5.0°C
Low Limit: 0
Low Limit: 0
Low Limit:
0
High Limit: 25.0°C
High Limit: 25.0°C
High Limit:
25.0°C
Voltage
Overvoltage Limit
Default:
52.0 V
Default:
52.0 V
Default:
60.0 V
Low Limit: 10.0 V
Low Limit: 10.0 V
Low Limit:
10.0 V
High Limit: 52.0 V
High Limit: 52.0 V
High Limit:
60.0 V
Undervoltage Limit
Default:
10.0 V
Default:
10.0 V
Default:
10.0 V
Low Limit: 10.0 V
Low Limit: 10.0 V
Low Limit:
10.0 V
High Limit: 48.0 V
High Limit: 48.0 V
High Limit:
56.0 V
