Design, Production, Sale, Spare parts, Service and Repair electrodrive and motor to 1000kW

Converters

Frequency converters

ONDA 2 dynamic test bench system

ONDA 2 is a system designed to control and regulate the torque/speed of three-phase asynchronous motors (for dynamic testing bench systems). The converter is water-cooled.

Technical data

Nominal current	see chart
Output voltage	380-520 Vac with regenerative bridge 380 - 420 Vac with dynamic braking
Input voltage	400 - 440Vac +/-15% tree-phase 47-63Hz
Max. output frequency	500Hz
Serial line	RS485 115.200 baud.
Torque response	<2ms at 100% load (+/-10%)
Current harmonic distortion	<4,5%
Efficiency	95% at full load
Cooling	water cooling
Overload	vsee chart
Output frequency accuracy	+/- 0.01% with feedback +/-0.05 without feedback
Torque control accuracy	+/-2% of max. value with feedback +/-0.1% with external torque loop
Drive response rime at torque/speed set	150ms
Control	vector current control
Reference regulation	CEI EN 61800

The ONDA drive with dynamic braking

Typ	fPWM[kHz]	Nom. current [A]		overload 60s every 300s [A]		overload 30s every 300s [A]
		brake	motor	brake	motor	brake	motor
ONDA T10	5	180	90	260	130	320	160
ONDA T20	5	270	135	380	190	460	230
ONDA T30	5	350	175	490	245	600	300
ONDA T31	5	500	250	700	350	900	450
ONDA T40	5	560	280	780	390	960	480
ONDA T50	5	700	-	980	-	1200	-
ONDA T60	5	1250	-	1500	-	1800	-

The ONDA drive with regenerative bridge

Typ	fPWM[kHz]	Nom. currentA]	overload 60s every 300s [A]	overload 30s every 300s [A]
ONDA T10	5	180	260	320
ONDA T20	5	270	380	460
ONDA T30	5	350	490	600
ONDA T31	5	500	700	900
ONDA T40	5	560	780	960
ONDA T50	5	700	980	1200
ONDA T60	5	1250	1500	1800