AMI 420, Installation, Operation And Maintenance Instructions, Page: 81 / 134

Rev. 7
63
Operation
Summary of Operational Limits
3.6 Summary of Operational Limits and Default Settings
Table 3-6 provides a summary of the operational limits and the default
setting for all Model 420 parameters. If the operator attempts to enter a
value outside of the limits, the Model 420 will beep once and revert to the
previous setting.
References to the specifications on page 7 indicate that the absolute limit
is determined by the specific configuration of the Model 420 purchased.
Table 3-6. Summary of limits and defaults for the Model 420.
Model 420 Setting (Units) Absolute Limits
Default Setting
a
a. Unless preset by factory.
Min Output Voltage (V)
0.000 to
−
20.000
0.000
Max Output Voltage (V) 0.001 to +20.000 12.000
Min Output Current (A) (see page 7) 0.000
Max Output Current (A) (see page 7) 100.000
V-V Mode Input Range (V)
−
10.000 to +10.000
0.000 to +10.000
Stability Setting (%) 0.0 to 100.0 0.0
Coil Constant (kG/A) 0.001 to 999.99999 0.0
PSwitch Current (mA) 0.1 to 100.0 10.0
PSwitch Heated Time (sec) 5 to 120 15
Current Limit (A)
≥
Min Output Current and
≤
Max Output Current
80.000
Display Contrast (%) 0 to 100 80
Voltage Limit (V)
≥
0.001 and
≤
Max Output Voltage
2.000
Ramp Rate (A/sec) (see page 7) 0.100
Programmed Current (A)
≤
Current Limit
5.000