Copley Controls Xenus R10 Manual page 180

CURREnT lIMIT InPUTS
Two inputs are provided for setting the peak and continuous current limits. The I-Peak and I-Cont inputs each have equivalent circuits shown below.
Limits can be set either by applying a voltage (Vset) to the input or by connecting a resistor (Rset) between input and signal ground. The tables below
show values for Rset and Vset that give 10~100% of the rated peak and continuous current ratings.
amplifier models and ratings
peak current limit settings
% Vpeak Rpeak
100 4.80 <oUT>
90 4.32 86400
80 3.84 38400
70 3.36 22400
60 2.88 14400
50 2.4 9600
40 1.92 6400
30 1.44 4114
20 0.96 2400
10 0.48 1067
To use the table, find the % value
as follows:
% = PeaklimitCurrent * 100
AmpPeak Current
continuous current limit settings
% Vcont Rcont
100 4.87 <oUT>
90 4.38 88189
80 3.90 39195
70 3.41 22864
60 2.92 14698
50 2.44 9799
40 1.95 6533
30 1.46 4199
20 0.97 2450
10 0.49 1089
To use the table, find the % value
as follows:
% = ContlimitCurrent * 100
AmpContCurrent
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
Tech Support: E-mail: sales@copleycontrols.com, Internet: http://www.copleycontrols.com
Bantam R30
Model I-Peak
R30-055-20
R30-090-10
equivalent circuit
+4.80 V
9600
J1-4
Vpeak
Ipeak
Rpeak
Control
equivalent circuit
+4.87 V
9799
J1-6
Vcont
Icont
Rcont
Control
I-Cont T-Peak I2T
20 10 400
1
10 5 100
example i-peak setting
If a voltage Vpeak is used to control the peak-limit
current, it can be found like this:
Vpeak = 4.80 * PeaklimitCurrent
Example: find Vpeak for a 6 A PeakLimitCurrent
using a R30-090-20:
Vpeak = 4.80 * 6 = 1.44 V
Vpeak
To use a resistor for setting Peak-limit current,
calculate the value as follows:
Rpeak =
Example: find Rpeak for a 14 A PeakLimitCurrent:
Rpeak =
example icont setting
If a voltage Vcont is used to control the peak-limit
current, it can be found like this:
Vpeak = 4.80 * ContlimitCurrent
Example: find Vcont for a 3 A ContLimitCurrent
using a R30-090-10:
Vpeak = 4.87 * 3 = 2.92 V
To use a resistor for setting Cont-limit current,
Vcont
calculate the value as follows:
Rpeak =
Example: find Rcont for a 2 A ContLimitCurrent:
Rpeak =
Tel: 781-828-8090
R30
AmpPeakCurrent
20
9600 * PeaklimitCurrent
(AmpPeakCurrent - PeakLimitCurrent)
9600 * 14 = 22,400 ohms
(20 - 14)
AmpContCurrent
5
9799 * ContlimitCurrent
(AmpContCurrent - ContLimitCurrent)
9799 * 2 = 6,533 ohms
(5 - 2)
Fax: 781-828-6547
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