AMETEK CSW Series - Manual (Page 16)

User Manual California Instruments
16 CSW Series
Function Specification
External Gain Control, RPV 0 to +7.07 VDC for 0 to programmed output. 0 to full-scale output for CSW.
(±2% of full scale output
External Input Impedance 40K for each of the three inputs.
XLOAD The CSW5550 is guaranteed to be stable for power factors from 0 leading to 0
lagging. The most difficult load for most amplifiers is driving large capacitive
loads (10-10,000
µ
F).Though stable with its normal loop compensation, the
CSW can provide additional phase/gain margin with these unusual loads by
selecting XLOAD On. This significantly improves the transient response of the
amplifier.
X-Load should only be used for reactive loads, and with programmed
frequencies of less than 1000 Hz.
-HF option All of the specifications for the standard CSW5550 apply for frequencies up to
and including 5000 Hz. Note: If the load is disconnected while at maximum
current, voltage below 40V and frequencies above 5,000Hz voltage spikes of
up to 45V could be present. To avoid voltage spikes program the source to
0V then remove the load.
The following specifications apply for frequencies above 5000 Hz:
Voltage Range: Derate the maximum voltage from 156 Vrms at 5 KHz to 106
Vrms at 7990 Hz. For the high voltage range derate the maximum voltage of
312 Vrms at 5 KHz to 202 Vrms at 7990 Hz.
Output Distortion (Full linear Load): The same as the standard CSW5550 to 5
KHz. Above 5KHz add 0.5% additional distortion to the standard specification.
Output Current Per Phase: The same as the standard CSW5550 to 5 KHz.
Above 5 KHz the maximum current with the specified voltage regulation is
reduced to 10.4 amps at 7990 Hz and 106 volts on the low voltage range and
5.1 amps at 7990 Hz and 202 volts on the high voltage range.
Voltage Program and Measurement Accuracy: The same as the standard
CSW5550 to 5KHz and stated spec de-rating to 7990 Hz.
-ELF option The following specifications apply for frequencies below 40 Hz.
Frequency Programming Resolution: 0.01Hz<81.9Hz – standard CSW
specification. 1.0Hz in Clock and Lock mode.
Frequency Accuracy: 0.01% at 25ºC ±0.001%/ºC
Output Distortion (Full linear Load): 1% maximum THD. No de-rating in
voltage.
Line Regulation: ±0.025% for full scale at ±10% input line change.
Output Current Per Phase: 16 amps at 115V in 156V range; 8 amps at 230V
in 312V range. Derate maximum output current from 100% at 40 Hz to 50% at
10 Hz and to 44% at 2 Hz
Load Regulation: 0.40%
-LF option Upper frequency limited to 500 Hz
Output current for which specifications apply is de-rated for frequencies above 400Hz as a function of
voltage, and for maximum power of 1850 VA per phase, as shown in Figure 2-1 and Figure 2-2.