Sequoia / Tahoe Series User Manual California Instruments
M447352-01 REV-A 25
2.20 Frequency Options
HF, option
High frequency option: output frequency range of 16 Hz to 905 Hz.
Note: With HF option installed, during SINK mode (Grid simulator and
electronic load) frequency would be restricted to 550 Hz.
FC , option
High frequency and reduced frequency control option is combined.
In this option frequency range would be 16 Hz to 905 Hz.
With FC option installed, For frequency greater than 550Hz, accuracy
reduces to ±0.25%.
With FC option installed external waveform programming signal feature is
disabled
2.21 Clock and Lock Mode Option
LKM , option
(Clock and Lock Mode)
Clock and Lock interface option for Leader unit.
multi-phase configurations could be formed with up to three units using the
Clock and Lock signal interface. One-unit acts as the Leader and provides
the reference signals to the other Follower units.
Note: The frequency of operation in restricted to 550 Hz if the power supply
is configured to operate in LKM mode.
LKM mode is not supported in SINK- Grid simulator and Electronic Load
mode.
LKS , option
(Clock and Lock Mode)
Clock and Lock interface option for follower unit.
multi-phase configurations could be formed with up to three units using the
Clock and Lock signal interface. One-unit acts as the Leader and provides
the reference signals to the other Follower units.
Note: The frequency of operation in restricted to 550 Hz if the power supply
configured to operate in LKS mode.
LKS mode is not supported in SINK- Grid simulator and Electronic Load
mode.
2.22 Analog/Digital Signal Characteristics
Function Characteristics
External Analog
Programming of
Output Voltage
Waveform
Signal input for output voltage waveform programming by external analog reference;
Signal ranges: 0-7.07 V(RMS) for zero to full-scale RMS output voltage, with AC input
waveform at 16Hz to 550Hz;
programming accuracy, ±2% of full-scale output;
individual inputs provided for each output phase; input impedance, 40 kΩ, typical;
safety isolation SELV-rated, referenced to chassis;
NOTE: External Analog waveform programming function is not supported in SINK-
Electronic Load mode
External Analog
Programming of
Output Voltage
Amplitude –
Source and SINK-
Grid Simulator
Signal input for output voltage amplitude programming of waveform that is set by internal
controller reference;
Signal ranges: 0-10 VDC for zero to full-scale RMS of internally programmed output
voltage;
programming accuracy, ±2% of full-scale output;
individual inputs provided for each output phase; input impedance, 40 kΩ, typical;
safety isolation SELV-rated, referenced to chassis;
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