Description
Core Product Summary
The Kollmorgen Seidel Digifas 7202 is a high-performance digital AC servo amplifier engineered for precise motion control, speed regulation, and torque loop management in automated industrial environments. Operating directly from a 3-phase 400V mains utility supply, the unit delivers dynamic response and tight loop closure for brushless servo motors, integrating advanced microprocessor control algorithms within a compact panel-mount housing.
The amplifier features a rated connected load of 1.7 kVA, supporting a continuous rms output current of 2.8 A and a peak output current of 5.6 A for high-acceleration machine profiles. It incorporates an internal DC-link circuit operating at 560 VDC with bus-compatible power distribution capabilities, built-in ballast circuitry, and flexible option card slots for analog setpoints, digital control, and serial or fieldbus communication networks.
Key Technical Specifications
| Parameter | Specification |
| Product Type | Digital AC Servo Amplifier / Drive |
| Series | Kollmorgen Seidel Digifas 7200 Series |
| Rated Connection Voltage | 3 × 80–400 V AC, 50/60 Hz (+max. 10%) |
| Connected Load (S1 Operation) | 1.7 kVA |
| Rated DC-Link Voltage | 560 V DC |
| Rated Output Current (rms) | 2.8 Arms |
| Peak Output Current (max. 5 s) | 5.6 Arms |
| Control Architecture | Digital current, speed, and position loops |
| Command Interface | Analog setpoint (1 mV resolution), optional fieldbus / position connect modules (SPS, CAN, STEP, DP) |
| Enclosure Protection | IP20 (for switchgear cabinet integration) |
| Ambient Operating Temperature | 0 °C to +45 °C |
Detailed Product Overview
The Kollmorgen Seidel Digifas 7202 functions as a core motion controller designed to command brushless AC synchronous motors across multi-axis production systems. By operating directly off standard industrial 400V utility grids without requiring external matching transformers, the amplifier streamlines power distribution architecture and reduces cabinet footprint requirements.
Internal digital signal processing manages current, velocity, and positioning loops simultaneously, ensuring minimal settling times and high path fidelity during complex motion profiles. The drive’s DC-link circuit is bus-compatible, allowing multiple axes to share intermediate circuit power and regenerate energy back across a common DC bus during rapid deceleration cycles, thereby optimizing overall system energy efficiency.
The unit supports various control interface configurations through plug-in connect modules, accommodating standard analog setpoints alongside industrial fieldbus protocols (such as CAN or PROFIBUS/DP) and specialized step-direction or encoder feedback options. Diagnostic visibility is maintained via integrated LED status displays and optional front-panel keypad operators, while parameterization is executed via PC setup software tools.
Digifas 7202
Digifas 7202
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Mains Power Supply | 3-phase 80–400 V AC, 50/60 Hz supply | Requires appropriate line fusing and incoming mains EMC filtering. |
| Motor Compatibility | Compatible brushless AC synchronous servo motors (such as Kollmorgen/Seidel motor series) | Motor power and feedback lines must utilize shielded cabling. |
| DC-Bus Integration | Bus-compatible intermediate DC-link (560 V DC nominal) | Enables multi-axis energy sharing and shared external ballast control. |
| Engineering / Setup Tool | PC running compatible configuration software via serial/printer port | Requires dedicated interface cables for parameter setup and tuning. |
| Cabinet Installation | Vertical mounting inside an electrical switchgear enclosure | Requires clearance above and below the chassis for proper thermal convection airflow. |
Dimensions, Mounting & Connection Notes
- Mounting Orientation: Vertical panel mounting inside a grounded metal switchgear cabinet to ensure proper thermal dissipation via natural convection.
- Shielding & Grounding: Requires dedicated shield connection terminal clamps for motor power leads and encoder feedback cables to satisfy EMC requirements.
- Terminal Layout: Front-accessible plug-in terminals handle power mains, DC-link access, motor phases, holding brake control, and analog/digital I/O lines.
- Cooling Clearances: Minimum clearance distances must be maintained above and below the drive housing to prevent thermal throttling.
FAQ
What is the primary function of the Kollmorgen Digifas 7202?
The Kollmorgen Digifas 7202 is a digital AC servo amplifier designed to govern speed, torque, and position for industrial brushless servo motors.
What input voltage does the Digifas 7202 require?
The drive operates directly off a 3-phase utility mains supply ranging from 80V AC to 400V AC at 50/60 Hz.
What are the continuous and peak current ratings for this drive?
The drive provides a rated continuous rms output current of 2.8 Arms and a peak output current of 5.6 Arms for up to 5 seconds.
Can multiple Digifas units share a common DC bus?
Yes, the intermediate DC-link circuit is bus-compatible, allowing power sharing and shared braking energy distribution across multi-axis systems.
How is the servo drive configured and commissioned?
Configuration, tuning, and diagnostics are handled via PC setup software connected through serial or printer communication ports, backed by front-panel LED indicators.
Documented Performance Data
| Metric | Value / Range | Operating Condition / Note |
| Continuous Connected Load | 1.7 kVA | S1 continuous operation |
| Rated RMS Output Current | 2.8 Arms | ±5% tolerance |
| Peak Output Current | 5.6 Arms | Maximum duration 5 seconds |
| Intermediate DC-Link Voltage | 560 V DC | Internal nominal bus level |
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