CR03251

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The CR03251 servo drive delivers smooth motion control with a 12-bit analog output at ~10V. Operating at a line frequency of 47-63 Hz, it maintains stability across varying power inputs. The drive also features a fast fault contact response, closing within 3 ms and opening within 2 ms for enhanced safety.

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Product Description:

The Kollmorgen CD Servostar CD Drive CR03251 is a motion control unit. It is specifically engineered for high performance in industrial automation applications. The digital and analog outputs are one of the key features of this CD drive. The digital output is limited to 0 to 48 V and 60 mA with an open collector, while the analog output delivers a range of ~10 V- voltage with 12-bit resolution along with a sensitivity of 4.9 mV. The drive's ability to control high-performance motors with high accuracy ensures high precision.

The CR03251 provides high efficiency in single-phase (1?) and three-phase (3?) systems, which makes it an effective solution for use in a variety of industrial applications. It has a power rating of 0.35 kVA for a single phase and 0.6 kVA for three phases at 115V. The power ratings increase to 0.8 kVA for a single phase and 1.2 kVA for three phases at 230V, which is a more flexible power rating for various operation environments. The drive with single and three-phase systems at 115 V can run continuously with 1.2 A current (AC) and a peak current of 6 A for 500 ms or 6 A for 2 ms. It also provides surge-resistant capability when needed.

The CR03251 servo star drive is designed to meet high-performance standards, including fault contact time of ? 3 ms for closing and ? 2 ms for opening providing a fast response in case of any fault. To facilitate the efficient operation of the drive, it is best to use the SF7, 3H Series*, FN258-7/07 EMI line filter to reduce any electromagnetic interference (EMI).

Analog Output
~10 V, 12-bit, 4.9 mV sensitivity
Continuous Current (Amps)
1.2 (1?), 1.2 (3?) A at 115V
Digital Output
0-48 V, 60 mA max, open collector
Fault Contact Closing Time
Close ? 3 ms, Open ? 2 ms
Line Frequency
47-63 Hz
Line Fuses
FRN-R, LFN, or equivalent
Logic Input Current
1.5 A
Logic Input Voltage
22 to 27V DC
Peak Current (Amps for 2 sec)
6 (1?), 6 (3?) A
Peak Current (Amps for 500 ms)
6 (1?), 6 (3?) A
Power Ratings (kVA at 115V)
0.35 (1?), 0.6 (3?) KVA
Power Ratings (kVA at 230V)
0.8 (1?), 1.2 (3?) KVA
Recommended EMI Line Filter
SF7, 3H Series*, FN258-7/07
Soft Start (Max Surge Current)
2.5 A max
Voltage (VAC, Nominal ~10%)
110 to 230V

Frequently Asked Questions about CR03251:

Q: What is the digital output of the CR03251?

A: The digital output of the CR03251 is 0-48 V, with 60 mA max, and open collector.

Q: What is the analog output of the CR03251?

A: The analog output of the CR03251 is ~10 V, 12-bit, with 4.9 mV sensitivity.

Q: What is the recommended EMI line filter of the CR03251?

A: The recommended EMI line filter of the CR03251 is SF7, 3H Series*, FN258-7/07.

Q: What is the voltage (vac, nominal ~10%) of the CR03251?

A: The voltage (vac, nominal ~10%) of the CR03251 is 110 to 230V.

Q: What is the line frequency of the CR03251?

A: The line frequency of the CR03251 is 47-63 Hz.


Internal Product Review

  • ‘‘The CR03251 delivers precise motion control with its 12-bit analog output and fast fault response, making it a reliable choice for high-speed automation. Its wide voltage range ensures flexible integration in various industrial setups.’’

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