S74802-DNF2-NA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Kollmorgen S74802-DNF2-NA is a servo drive from the S700 Servo Drives series, designed with a continuous brake power of 8 kW and a peak output current of 96 Arms. It has a rated input power of 35 kVA, supports a voltage rating of 208 to 480V, and weighs 13 kg. The drive also features dual channel STO capability and a Devicenet isolation of 500 V with support for up to 64 nodes.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The S74802-DNF2-NA is a servo drive produced by Kollmorgen in the S700 Servo Drives series. It converts three-phase line power into precisely regulated AC output for motors that position, index, and synchronize loads in automated machinery. Rated for high-performance motion, the unit incorporates dual-channel STO hardware so that axes can be disabled safely while the bus remains energized. This arrangement allows the machine to remove torque-producing output from the motor while keeping the drive system powered for controlled operation in guarded machine zones.
Electrically, the drive draws a maximum input of 35 kVA from three-phase mains in the 208 to 480 V range. Under continuous operation, it delivers up to 48 Arms to the motor, while short-term acceleration is supported by a peak current of 96 Arms. An insulated-gate bridge switches at 8 kHz, providing fine current resolution and helping reduce audible noise during operation. The DeviceNet interface supports a 64-node network and is galvanically isolated from the control logic to limit common-mode faults. A residual direct-current path limited to 6 V across the DC bus helps keep contactors from chattering, and terminals are provided for an external brake resistor so regenerated energy can be dissipated during deceleration.
Mechanical integration is simplified by a 190 mm width, a 285 mm depth with connectors, and a 505 mm overall height, while the assembly weighs only 13 kg. The optional fan-controller expansion card activates cooling when internal temperature reaches 65 °C, and standby thermal dissipation is held to 24 W once airflow is established. For dynamic braking, the drive uses an external resistor of 15 Ω, allowing up to 8 kW of regenerated power to be absorbed without exceeding bus limits. Field wiring also benefits from DeviceNet isolation rated at 500 V, which helps separate the network from the control electronics. The switch on and off rate of 30 cycles per hour helps protect the capacitors, and standard PCBs are used in the control and power sections.
Frequently Asked Questions about S74802-DNF2-NA:
Q: What is the continuous brake power rating of the S74802-DNF2-NA servo drive?
A: The S74802-DNF2-NA has a continuous brake power of 8 kW, providing sustained energy handling for the braking system.
Q: What is the peak output current of the S74802-DNF2-NA servo drive?
A: This model offers a peak output current of 96 Arms, allowing for short bursts of high power during demanding loads.
Q: What is the rated input power of the S74802-DNF2-NA servo drive?
A: The rated input power for the S74802-DNF2-NA is 35 kVA, supporting high-powered operations and large automation systems.
Q: How many Devicenet nodes can the S74802-DNF2-NA servo drive handle?
A: The S74802-DNF2-NA supports up to 64 nodes on its Devicenet, making it suitable for integration in complex networked setups.
Q: What STO (Safe Torque Off) capability is included with the S74802-DNF2-NA servo drive?
A: The dual channel STO capability ensures enhanced safety by offering two independent channels for Safe Torque Off functionality.
