Aerotech NDrive CP10 Servo Drive Guide

Unable to activate or emergency stop alarm

ESTOP detection input requires an external relay to remove the AC power supply. Check emergency stop terminals such as TB201/TB101, external safety relays, and 24V logic. If the emergency stop circuit is not closed, the driver will not be activated. Software enable bits, control words, and FireWire node status should also be confirmed.

Motor shaking, runaway, or incorrect direction

Firstly, check the encoder or rotary feedback connection, shielding, and grounding. Encoder A/B reverse connection, Hall phase sequence error, and commutation angle deviation can all cause jitter or runaway. Confirm the number of motor poles, encoder resolution, and commutation method. If using MXU, check the multiplier settings and output direction. If using a spinor, confirm that the RDP card carrier frequency matches the spinor.

FireWire communication failed

Check the sequence of IEEE-1394 cables, ports, and nodes. FireWire networks are sensitive to topology and cable quality. Confirm that all node addresses are unique and the controller has recognized the new drive. If communication is not possible after replacing the drive, check if the firmware version and configuration file are compatible.

Overcurrent, over temperature or shut-down faults

Overcurrent may be caused by rapid acceleration, load jamming, motor short circuit, high gain, or commutation error. Overheating is usually related to poor heat dissipation, ambient temperature exceeding 50 ° C, fan failure, or excessive continuous current. If frequent braking occurs, check the dissipation and regenerative energy of the brake. CP10's - S requires good heat dissipation internally, while HL requires external cooling.

PSO does not trigger

Confirm if PSO is optional, PSO is not available when CP/MP uses MXU. Check the PSO output wiring, optoelectronic isolation options, trigger position, and controller configuration. The dual axis or three-axis PSO of HP/HL requires - DUALPSO or - TRIPLEPSO, and may require - IO to provide encoder feedback connection.

Analog I/O scaling exception

The CP10 standard analog input is a 12 bit differential, and the analog output is a 16 bit single ended. HP/HL can provide 16 bit differential input and 18 bit single ended output. If the analog instruction ratio is incorrect after replacement, check the resolution, range, differential/single ended wiring, and software scaling.

In terms of maintenance, it is recommended to regularly clean the air duct, check the fan, tighten the terminals, measure the logic power supply, backup configuration files, record motor parameters and feedback settings. For old equipment, it is possible to prepare good inventory of the same model in advance or develop a plan to upgrade to HP/HL/CP new configuration.

Ordering options and configuration suggestions

The ordering information for NDrive typically consists of a base, output current, control options, rotary options, and power level options. For example, the HP series ordering example can be represented as NDrive HP 20-ENET RDP1-10K-AUXPWR. Among them, 20 represents the output current level, - ENET is the Ethernet control option, RDP1-10K is the single channel 10 kHz carrier rotary feedback card, and - AUXPWR is the auxiliary power supply option.

The CP series control options include - IO and - MXU. -IO provides 16 channels of optoelectronic isolation input, 16 channels of output, 1 channel of 12 bit analog input, 1 channel of 16 bit analog output, and brake relay. -MXU provides up to x1024 encoder multiplication, but does not provide real-time output and is mutually exclusive with the PSO function of CP/MP. The CP power level option is - S, which means a 100 W internal shunt resistor network. The control options for CL and CP are similar, also - IO and - MXU. The control options for MP are - IO and - MXU, where - IO provides 8 inputs, 8 outputs, 1 12 bit analog input, 1 16 bit analog output, brake relay, and PSO output.

HP/HL offers a wider range of control options: - IO is an expansion board that provides 8 inputs, 8 outputs, 2 18 bit analog outputs, and 2 16 bit differential analog inputs SSINET、 Absolute encoder interface and brake relay; -IOH is a high-power expansion board with an output of 1 A per channel; - DUALPSO is a dual axis PSO; -TRIPLEPSO is a three-axis PSO and requires - IO to provide feedback connection for the three-axis encoder; -PSOPTO2, - PSOPTO3, and - PSOPTO4 are optoelectronic isolators with different speeds/currents/voltages; -MXH is the highest x2048 programmable encoder multiplier, supporting single/dual axis PSO and real-time encoder orthogonal output; -ENET is a 10/100 BASE-T Ethernet port. The rotation options for HP/HL include RDP1-10K, RDP1-7.5K, RDP1-5K, RDP2-10K, RDP2-7.5K, and RDP2-5K, corresponding to single or dual channels and different carrier frequencies, respectively. The power level options include - S, - EXTSHUNT, - AUXPWR, - HS, -3P, - FAN-115, - FAN-230. Among them, - S is a 100 W internal damper, - EXTSHUNT is an external damper connector, - AUXPWR is an auxiliary power supply, - HS is a heat sink, -3P is a three-phase AC input, and - FAN-115 and - FAN-230 are external cooling fans.