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ISS57 integrated closed-loop stepper

Manufacturer catalogue image · Series illustration

Stepper motors

ISS57 integrated closed-loop stepper

SYN-TRON logoSYN-TRONView manufacturer →
Voltage
24–60 V DC
Interfaces
Modbus RTU / CANopen variants
Architecture
Motor with integrated closed-loop drive
Power
Confirm configuration

Catalogue series · Exact configuration and availability confirmed by the manufacturer.

Choose an ISS57 by the required motion and the length available behind the flange

ISS57 is a family of integrated closed-loop stepper assemblies, not one torque rating. The manufacturer’s selection table lists different two- and three-phase variants, communication suffixes and body lengths. The comparison below keeps those combinations intact so a compact unit is not ordered with the torque figure of a longer one.

Compare complete catalogue references

These are selected rows from the November 2022 ISS manual. Torque is holding torque, not torque available throughout a motion cycle. Length is reproduced as motor section + rear section; shaft projection and cable clearance are additional checks.

ReferenceBus / phasesHolding torqueShaftListed length
ISS57C250CR00 CANopen / two-phase 1.6 N·m 8 mm 64 + 37 mm
ISS57C350B CANopen / three-phase 0.9 N·m 8 mm 54 + 37 mm
ISS57R350C RS485 Modbus RTU / three-phase 1.50 N·m 8 mm 79 + 37 mm
ISS57C350C CANopen / three-phase 1.50 N·m 8 mm 79 + 37 mm
ISS57R350E RS485 Modbus RTU / three-phase 2.60 N·m 8 mm 100 + 37 mm
ISS57C350E CANopen / three-phase 2.60 N·m 8 mm 100 + 37 mm
ISS57R250D RS485 Modbus RTU / two-phase 2.00 N·m 8 mm 76 + 37 mm
ISS57C250D CANopen / two-phase 2.00 N·m 8 mm 76 + 37 mm

Turn the shortlisted reference into a workable axis

ISS57 accepts a published 24–60 V DC supply, but voltage range, holding torque and mechanical size answer different questions. An axis selection needs all three, together with its controller and operating cycle.

Check torque at the actual speed and supply

The ISS57R350C graph shows separate 24, 36 and 48 V curves, and the available torque falls as speed rises. The higher-voltage curves retain more torque in much of the plotted running range. Compare your acceleration and running points against the curve for the exact supply; do not use the 1.50 N·m holding value as the torque available at every speed. The supply’s allowable range does not create a verified 60 V performance curve.

Keep the revision on the curve with the offered model

The table lists ISS57R350E, while a plotted curve is labelled ISS57R350EA. The naming diagram reserves a final character for the design revision. Request the matching curve and drawing for the full delivered reference before using an EA plot to approve an E offer. This is particularly relevant when replacing an older machine’s motor.

Allow for the rear drive and its power connector

The ISS57 350B/C/E drawing shows a 57 mm motor face, 47.14 mm mounting-hole spacing and a 37 mm rear section; the side-view overall height is 76 mm. The manual also specifies a separate two-pin power terminal for ISS57. Check the rear enclosure and cable exit against the machine, rather than assuming that a 57 mm face means the whole assembly fits inside that outline.

Select the communication version before controller setup

R uses RS485/Modbus RTU and C uses CANopen. The manual describes point-to-point motion, speed operation and cyclic position control, but their setup and command definitions are protocol-specific. Include the controller model, chosen mode and full motor suffix in the inquiry; request the matching register information or EDS file rather than treating the two buses as interchangeable wiring options.

Review a repeated acceleration/deceleration cycle

Give travel, transmission ratio, moving load, target speed, acceleration/deceleration time and pause time. The manual states there is no built-in energy-dissipation control circuit and calls for an external module where regeneration is substantial. Have the supplier review supply headroom and braking-energy handling for that cycle. Natural convection is the default cooling arrangement, with extra airflow where necessary; an enclosed machine needs a thermal check as well as a torque check.

CATALOGUE OVERVIEW

About this motor series

SYNTRON ISS57 integrates a stepper motor and closed-loop control electronics into one assembly. The product line offers bus-controlled variants, including Modbus RTU and CANopen configurations. Its published supply is 24–60 V DC.

Confirm the exact communication suffix, motor torque, connector orientation and supported operating mode before selecting the assembly. An integrated drive reduces external wiring but requires appropriate cabinet power, grounding and thermal clearance. Send the travel profile and controller interface with your inquiry.

Model / series reference: ISS57

Published specifications

Specifications describe a series range; confirm which ratings apply together to the quoted model.

Voltage
24–60 V DC
Interfaces
Modbus RTU / CANopen variants
Architecture
Motor with integrated closed-loop drive
Power
Confirm configuration
Speed
Model dependent
Selection
Confirm bus suffix and torque-speed curve
Catalogue Type
Product series

Confirm mounting and shaft dimensions against the drawing for the quoted configuration.

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