Ndrive CP Hardware Manualvvv

1.2.1. System Power Requirements

The following equations can be used to determine total system power requirements. The actual power required from the mains supply will be the combination of actual motor power (work), motor resistance losses, and efficiency losses in the power electronics or power transformer. An EfficiencyFactor of approximately 90% should be used in the following equations.

Brushless Motor

rushless Motor Output Power Rotary Motors Pout [W] = Torque [N·m] * Angular velocity[rad/sec] Linear Motors Pout [W] = Force [N] * Linear velocity[m/sec] Rotary or Linear Motors Pout [W] = Bemf [V] * I(rms) * 3 Ploss = 3 * I(rms)^2 * R(line-line)/2 Pin = SUM ( Pout + Ploss ) / EfficiencyFactor

DC Brush Motor Pout [W] = Torque [N·m] * Angular velocity[rad/sec] Ploss = I(rms)^2 * R Pin = SUM ( Pout + Ploss ) / EfficiencyFactor

1.2.2. Power Dissipation

The amplifier power dissipation under continuous power supply and output current conditions is shown in Figure 1-3. The values on the graph represent the peak current that the amplifier would provide during operation. When the bus voltage and output current are known, the amplifier power dissipation is found using this graph. Figure 1-4 shows the maximum recommended ambient temperature as a function of amplifier power dissipation. Use this graph along with the power dissipation obtained from the first graph to determine the maximum ambient temperature. If the result is lower than the known operating ambient temperature, additional measures are required to cool the Ndrive CP. Mounting it to a large metal plate for extra heatsinking and providing additional fan flow are suggested

1.3. Mechanical Design

Install the unit into a construction compliant for unlimited circuits enclosure. Each unit should be separated from other drives and surrounded by 25 mm (1") of free air space. A space of 100 mm (4") should be allowed along the front of the unit for cable connections.

Environmental Specifications

The environmental specifications for the Ndrive CP are listed below

Chapter 2: Installation and Configuration2.1. Communication Channel SettingsUse the Device Number switches to assign a communication channel number to the Ndrive CP. If you are using multiple drives, each drive must be assigned a unique communication channel. Multiple drives are typically configured using sequential communication channels.

N O T E : The drive assigned to the first communication channel number (all switches set to ON) will be configured by the Axis 1 parameters defined in the software. The drive assigned to the second communication channel will be configured by the Axis 2 parameters, etc.

Motor Supply Connections (TB102)

N O T E : This product requires two power supply connections. The Motor Supply and Control Supply must both be connected for proper operation.

Motor power is applied to the Ndrive CP Motor Supply connector (refer to Figure 2-2 for locations). Refer to local electrical safety requirements to correctly size external system wires and match wires to fuses or circuit breakers. The AC1 input is internally fused (5A CP10, 10A CP20/30). External fuses or a circuit breaker (15 A maximum, time delay type) are required for the AC1 and AC2 inputs. The AC2 input can be connected directly to Neutral without a fuse for single phase power systems

W A R N I N G : Do not operate the Ndrive CP without the safety ground connection in place

W A R N I N G : Do not operate the Ndrive CP without proper branch protection.An AC Line Filter may be required for CE compliance and should be located as close as possible to the drive. For more information about the AC Line Filter, refer to Section 2.2.4. Wiring between the filter and drive can be twisted and/or shielded to reduce radiated emissions