Owner manual

18
Table 10a – MotorGuard Technical Specifications – General Purpose
Current ratings Continuous current: 55 to 600 amps. See Rating and Dimension tables
Intermittent current: 150% for 1 minute out of every 60 minutes
VFD Drive output voltage 460/480 and 575/600 V, 3 ph, at fundamental base frequency
VFD Drive output
frequency
0 to 80 Hz
VFD Drive carrier
frequency
2 kHz and 12 kHz, Ideally 4 kHz to 8 kHz
Control power input For fan operation.
Filter performance Maximum peak voltage of output waveform – 480 V models: 1000 V
– 600 V models: 1500 V
Maximum dv/dt of output waveform – 480 V models: 500 V/μs
– 600 V models: 1500 V/μs
Maximum elevation 3,000 feet (1,000 meters) as standard. Product must be equipped with
special cooling provisions for operation above this level
Maximum ambient
operating temperature
40 °C (104 °F) as standard. Product must be equipped with special
cooling provisions for operation above this temperature.
Maximum ambient storage
temperature
50 °C (122 °F)
Maximum humidity,
operating or storage
95%, non-condensing.
Enclosure options
General Purpose 3R enclosure
Insertion impedance Approximately 6.5% at 60 Hz & full load current
Capacitors Oil filled high endurance design (no PCBs)
Table 10b – Only with Board Option
Status indication LEDs Green LED indicates: "Control Power ON"
Yellow LED indicates: "Normal Operation" (not faulted)
Fault relay De-energized when a fault is detected.
Form C contact for customer use.
Rated 0.6 A at 125 VAC and 110 VDC, 2 A at 30 VDC.