Ametek EC1000S, Руководство пользователя

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User Manual EC1000S
California Instruments 68
3.4.7 Using limiter functions
a) Using current limiter
The EC1000S includes an output peak current limiter function and an output average current limiter
function.
Limiter settings are retained separately for 100 V and 200 V ranges.
Setting range limits can be set for output voltage and output frequency.
See “5.3.7 Set Output peak current limiter settings”
.
See “0 Set
Output average current limiter settings
”
.
Table 0-1. Current Limiter Setting Ranges
Setting Setting Range Resolution Initial Value
Output peak current
limiter (positive)
100 V range +10.0 A to +42.0 A 0.1 A +42.0 A
200 V range +5.0 A to +21.0 A 0.1 A +21.0 A
Output peak current
limiter (negative)
100 V range

42.0 A to

10.0 A
0.1 A

42.0 A
200 V range

21.0 A to

5.0 A 0.1 A

21.0 A
Output average
current limiter
100 V range 1.0 A to 10.5 A 0.1 A 10.5 A
200 V range 1.0 A to 5.3 A 0.1 A 5.3 A
For a capacitive load or inductive load, the output peak current limiter may not achieve the peak
current value as set, due to overshooting or undershooting the set current value, or variable output
current waveforms while the limiter is operating.
For an inductive load, operation of the limiter can cause the current to vary and, as a result, an
output overvoltage may occur.
Note with caution that the output peak current limiter may allow overshooting, depending on the load,
and therefore may not achieve the peak current value as set.
For an inductive load, operation of the limiter can cause an output overvoltage, triggering the
overvoltage protection function. In this case, the peak current limiter settings (positive and negative)
should be reduced.
If the output current or frequency suddenly increases, due to an output short, etc., the limiter response
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CAUTION
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CAUTION