DIGIFAS 7116-SPS Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen DIGIFAS 7116-SPS is part of the DIGIFAS 7000 Servo Amplifiers series and delivers a peak output current of 32 Arms with a minimum motor inductance of 2.5 mH. It features an intermediate circuit voltage of 560 V DC and a current controller bandwidth of 1 kHz. The servo amplifier offers a PLC I/O count of 10 and has a quiescent power loss of 15 W.
Internal Product Review
The DIGIFAS 7116-SPS is a Kollmorgen servo amplifier that delivers 16 Arms output current and 32 Arms peak output current. A 1 kHz current controller bandwidth and 8.33 kHz output stage clock support sharp current regulation and stable dynamic response. Excellent electrical headroom and clean control tuning make the amplifier a strong fit for demanding servo axes.
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Product Description:
The DIGIFAS 7116-SPS servo amplifier is manufactured by Kollmorgen and belongs to the DIGIFAS 7000 Servo Amplifiers series. Installed inside a control cabinet, it interfaces between a shared DC link and a servo motor, translating motion commands from a CNC or PLC into precisely metered phase currents. By delivering vector-controlled drive power, it allows machinery such as gantry stages, feeders, and winders to achieve repeatable speed and position profiles under varying mechanical loads.
The power section is built around a DC bus rated for 560 V DC. When regenerated energy raises the bus above 720 V DC, a braking chopper turns on, while it turns off once the voltage falls to 680 V DC; this prevents an excessive rise toward the overvoltage trip threshold of 750 V DC. Internal ballast capacity is 200 W, and an external resistor can be added for additional dissipation as long as its resistance is not less than 50 Ω. Current is modulated by a digital regulator with a bandwidth of 1 kHz, providing a fast torque response, and the amplifier delivers a continuous output of 16 A RMS to the motor windings. The control loop operates with an output-stage clock of 8.33 kHz. The design supports motors with a minimum phase inductance of 2.5 mH, helping maintain stable current feedback.
During dynamic events, the device can supply a peak current of 32 A RMS for short acceleration or load-change demands. External braking power may reach 2000 W when heavy deceleration returns more energy than the internal ballast can dissipate. Power loss is 180 W at rated current and decreases to 15 W while the amplifier is idle, providing the values needed to plan cabinet cooling and ventilation. Ten digital PLC I/O points support machine interlocks and communication with external control devices. The SPS interface uses a Mini Combicon 3.81 mm, 12-pin connector that accepts conductors with a cross-sectional area of up to 1.5 mm² for field wiring.
