PY Traditional Servo System Overview

Fully-digital and high-performance ac servo systems from Sanyo Denki offer a rich set of features. These traditional ac servo systems offer a choice of command sources including analog (+/-10 volt) velocity or torque commands, pulse and direction with electronic gearing, and master encoder following with electronic gearing.

These ac servo drives have complete built-in functionality including dynamic braking and handling of regenerative energy. Extra regeneration energy handling capability can be added to each ac servo drive with standard external regeneration resistors. The universal remote operator or the PC set-up software is used for setting servo drive parameters and for checking the status of the servo system. Standard cables for motor power and encoder feedback are available that have all the necessary connections made on both ends of the cables. There is also an optional breakout board with screw terminals and a connection cable to facilitate all other connections to the servo drives.

The P Series Motors can be paired with the compacy PY2 drive, or the rugged and economical PY0.

The following systems are available for each drive:

PY0 Drive Systems

A total of 10 systems are available using the PY0 Drive:

Low Inertia Systems


Medium Inertia Systems (1)

Medium Inertia Systems (2)

Compact PY2 Drive Systems

A total of 7 systems are available using the PY2 Drive:

Low Inertia Systems


Medium Inertia Systems

Each system operates to a maximum speed of 4500 r.p.m. The motors have a built-in 2000 line (8000 count per revolution) encoder and optional 24 VDC spring-set holding brakes. The PY2 drives offer the ultimate in compact size with a continuous output power range from 100 to 1500 watts.  The standard size PY0 drives can provide a continuous output power range of 100 to 5,000 watts.

Sanyo Denki ac servo systems are suitable for a broad range of applications including: Packaging Machines, Chip Mounters, Winding Machines, X-Y Tables, Feeding Machines, Semiconductor Processing Machines, and most other types of general purpose industrial machinery.

PY2 Drive Overview

The compact size PY2 drives include 15, 30, and 50 amp peak ratings with common height and depth dimensions. The PY2 drives operate from 230 VAC input (single or three phase setting is available) and have built-in functions such as dynamic braking and regenerative energy processing (external regenerative resistor must be used in some applications). The PY2 drives are manufactured in an ISO-9001 facility and have UL, cUL, and CE marks.

The PY2 drives are fully-digital and use the same set-up tools as the PY0 drives. The PY2 drives have almost the same functionality as the PY0 drives but are less than half the size.

PY0 Drive Overview

The PY0 family includes five models that operate from a 230 VAC supply (single or three phase setting is available) All PY0 drives have a uniform height and built-in functions such as dynamic braking, regenerative energy processing (external regenerative resistor is used in some applications), and holding brake timing control. The PY0 drives are manufactured in an ISO-9001 facility and have UL, cUL, and CE marks. The PY0 drives provide for traditional command interfaces such as +/- 10 volt velocity or torque commands, pulse and direction position command, and master encoder following. The fully-digital PY0 drives have programmable functions including auto-tuning, load vibration suppression, fault history, electronic gearing, and many digital input/output functions. A remote operator or PC set-up software provides for quick and easy set-up.

Low Inertia P3 Motor Overview

The compact and low-inertia P3 brushless servo motors are available in three sizes: the 40mm square 100 watt size, the 60mm square 400 watt size, and the 80mm square 750 watt size. All of the P3 motors can operate to 4500 r.p.m., include a built-in 2000 line "wire-saving" optical encoder, and have optional 24 VDC spring-set holding brakes. The P3 motors have connectorized leadwires and an IP-43 environmental rating.

The P3 motors have a unique magnetic design and very efficient thermal management that results in motors that are about one-half the volume of conventional motors. The compact size and low-inertia of these motors make them ideal for applications requiring fast response.

Low Inertia P2 Motor Overview

The compact and low-inertia P2 brushless servo motors are available in four sizes. The 100mm square frame is available in a 1.5kW size for use with the 50 amp PV drive.  Additional sizes of the P2 motor are available (up to 5kW) for use with the standard size PE series drives.   All of the P2 motors operate to 4500 r.p.m., include a built-in 2000 line "wire-saving" optical encoder, and have optional 24 VDC spring-set holding brakes. The P2 motors have water-tight connectors, shaft seals, and sport an IP-67 environmental rating.

The P2 motors have a special design that results in about a 40% size reduction over conventional designs. The P2 motors are ideal for high response control of low-inertia loads.

Medium Inertia P5 Motor Overview

The compact and medium-inertia P5 brushless servo motors are available in two sizes: the 200 watt size with NEMA 23 mounting and the 1kW size with NEMA 34 mounting. All P5 motors can operate to 4500 r.p.m., include a built-in 2000 line "wire-saving" optical encoder, and have optional 24 VDC spring-set holding brakes. The P5 motors have connectorized leadwires, shaft seals, and an IP-55 environmental rating.

The P5 motors have a unique magnetic design and very efficient thermal management that results in motors that are about 70% smaller than conventional designs. The compact size, medium-inertia, and NEMA mounting flanges make these motors ideal for applications with higher load inertia and standard response.

Medium Inertia P6 Motor Overview

The compact and medium-inertia P6 brushless servo motor is available with 130mm square frame and 1.5kW rating. The P6 motor operates to 3000 r.p.m., includes a built-in 2000 line "wire-saving" optical encoder, and has an optional 24 VDC spring-set holding brake. The P6 motor has watertight connectors, shaft seal, and sports an IP-67 environmental rating.

The P6 motor has a special design that results in a 50% size reduction over conventional designs. The P6 motor is ideal for applications that direct drive higher load inertia and have standard response.

Accessories

Breakout Terminal Board & Interface Cable

Another very useful accessory is the Breakout Screw Terminal Board and interface cable to the CN1 connector on the drive. This accessory makes all the I/O signals from CN1 available for user connection at the screw terminal board. There is a 10 foot limit on the length of the interface cable. This breakout board and interface cable should be contained within your control cabinet. Please consider this accessory to make your interface connections to the drive easy and trouble-free.

Remote Operator

The handheld remote operator and 2 meter connection cable are common to the PE, PV, and PY servo drives. The remote operator is used for setting the servo drive parameters and for checking the internal status of the servo drive.

The easy-to-use remote operator has a 2 x 16 character LCD display. Each character is a 5 x 7 dot matrix. This allows for a more complete message display than the typical 8 character display provided by the competition. The compact remote operator is easy for anyone to use and is an excellent tool for the factory floor. One remote operator can be used for multiple servo drives because it is completely independent of the drive and can be quickly attached and removed as required.

The Remote Operator has four modes: parameter mode, monitor mode, alarm tracing mode, and test mode. Five test points are also available on the bottom of the remote operator: speed command, alarm status, motor excitation status, and two programmable test points - M1 & M2 (which allow the monitoring of additional drive signals).

Cables

The most common cause of start-up problems is faulty cabling. This is why we offer and require factory tested and fully terminated cables for all connections between the drive and motor. We offer motor power cables and motor feedback cables in several standard lengths. We also offer custom cable lengths in one foot increments at the same price per foot as standard length cables.

Regeneration Resistors

A range of regeneration resistors are available for applications that require regeneration capability in excess of the drive’s built-in regeneration resistor (15A and 30A PY2 drives do not have a built-in regeneration resistor). All external regeneration resisters are equipped with built-in thermostats. Please contact our Technical Support Engineers to evaluate your application and any need for external regeneration resistors.

Panel Mounting Brackets (for 50A, 100A & 150A PY0 Drives ONLY)

The 50A, 100A and 150A PY0 Drives are panel mountable without these brackets but they each require a large rectangular cut-out in the panel (and clearance behind the panel) for the heat sinks.   Using these brackets eliminates the need to cut the panel, and the mounting hole pattern is identical to the standard mounting hole pattern for the drive (shown in the catalog). The approximate depth of either drive with this bracket installed is 320mm. These brackets replace the existing brackets that come with their respective drives.