Voltage 0 - 400 Vdc 0.25% FS 0.1 Volt
Current 0 - 200 Adc 0.5% FS 0.01 Amp
Power 0 - 10 kW 1% FS 10 W
Note: Accuracy specifications are valid above 100 counts. For current and power measurements,
specifications apply from 2% to 100% of measurement range.
2.1.5 Harmonic Measurements
Harmonic measurement specifications apply to RS90-3Pi in three-phase mode. See notes for
other models and configurations.
Parameter Range
Accuracy (
±
)
Resolution
Frequency fundamental 16.00 - 820 Hz 0.03% + 0.03 Hz
±0.25 % for the FC option
0.01 Hz
Frequency harmonics
32.00 Hz – 16 KHz 0.03% + 0.03 Hz 0.01 Hz
Phase 0.0 - 360.0° 2° typ. 0.5°
Voltage Fundamental 0.1% FS 0.01V
Harmonic 2 - 50 0.1% + 0.1%/kHz FS 0.01V
Current Fundamental 0.5% FS, < 100 Hz
1.0% FS, > 100 Hz
0.1A
Harmonic 2 - 50 1.0% + 0.5%/kHz FS 0.1A
Note: For current measurements, specifications apply from 2% to 100% of measurement range.
2.1.6 System Specification
External Modulation: 0 to 10%
Synchronization
Input:
Isolated TTL input for external frequency control. Requires 5V at 5 mA for logic
high. Note: Not available with FC option
Trigger Input: External trigger source input. Requires TTL level input signal. Triggers on negative
edge. Response time 80 - 100 µs.
Trigger Output:
Programmable through transient list system. 400 µs pulse for voltage or frequency
change. Isolated TTL output. Output reverts to Function strobe when not uses as
Trig Out. This function is mutually exclusive with the Function Strobe output.
Function Strobe:
Active for any voltage or frequency program change. 400 µs pulse for voltage or
frequency change. Isolated TTL output. This function is mutually exclusive with the
Trigger Output. Same output is used for Trigger Output if Trigger Output is
programmed as part of list system.
Output Status: Monitors status of output relay. Isolated TTL output. High if output relay is closed,
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