Product Description

TRD-N60-RZ — Koyo / JTEKT Incremental Rotary Encoder, 60 PPR

Precision feedback starts with choosing the right encoder. The TRD-N60-RZ is a medium-duty incremental quadrature rotary encoder from Koyo Electronics — now operating under the JTEKT Electronics brand — and it represents one of the most field-proven encoder families in industrial automation today. Manufactured in Japan, it combines a compact 50mm body with an 8mm solid shaft and wide-voltage push-pull output, making it a dependable choice for motion control systems across a broad range of machine types.

Technical Specifications

Parameter	Value
Catalog Number	TRD-N60-RZ
Manufacturer	Koyo / JTEKT Electronics
Encoder Type	Incremental (Quadrature)
Duty Rating	Medium Duty
Resolution	60 Pulses Per Revolution (PPR)
Output Phases	2-Phase + Origin (A, B, Z)
Output Type	Push-Pull (Totem Pole)
Supply Voltage	5–30 VDC
Output Voltage (H)	Supply Voltage − 4V or more
Output Voltage (L)	2V or lower
Output Current (Sink)	30 mA max
Output Current (Source)	10 mA max
Max Response Frequency	100 kHz
Shaft Diameter	8mm (Solid)
Body Diameter	50mm
Body Depth	37mm
Mounting Pitch	40mm
Radial Shaft Load	50N
Enclosure Rating	IP50 (Dust Proof)
Cable Length	0.5m, tinned ends
Country of Origin	Japan
Weight	Approx. 150g

60 PPR — What It Means in Practice

Resolution tells you how many pulses the encoder generates per full shaft revolution. At 60 PPR with quadrature (A+B) decoding, a controller can resolve up to 240 counts per revolution in 4x counting mode. For a 60 PPR encoder running at 3,000 RPM, the output frequency stays well within the 100 kHz electrical response limit — giving you comfortable margin for most general-purpose speed and position feedback tasks without risking signal dropout at operating speed.

This makes the TRD-N60-RZ particularly well suited for conveyor speed monitoring, motor shaft feedback, and any application where moderate resolution and reliable signal quality matter more than ultra-high PPR counts.

Push-Pull Output: Why It Works Over Long Cable Runs

Unlike open-collector outputs, the push-pull (totem-pole) configuration actively drives the signal both high and low. The practical result is better noise immunity and the ability to drive longer cable runs without external pull-up resistors — an important advantage in real panel wiring environments where encoder cables often run alongside motor cables and power conductors.

The TRD-N60-RZ's push-pull output is directly compatible with most PLC high-speed input modules and motion controllers that accept 5–30VDC differential or single-ended encoder signals.

Construction & Durability

The TRD-N series uses a metal slit disk rather than a glass disk — a deliberate design choice that improves shock and vibration resistance without sacrificing accuracy at this resolution level. The die-cast aluminum housing handles the mechanical demands of typical machine mounting, while IP50 dust protection covers the most common panel and cabinet installations.

For applications with direct coolant exposure or washdown requirements, the RZWD variant of this same encoder offers IP65 protection with a 2-meter pigtail cable instead of the short tinned-end termination on the RZ.

Typical Applications

The TRD-N60-RZ sees regular use across a wide variety of industrial environments:

Conveyor belt speed feedback and synchronization
Packaging machine shaft position monitoring
Motor speed control loops in VFD-based systems
Winding and unwinding tension control
Printing and labeling machine registration
General-purpose machine tool feedback

Frequently Asked Questions

Q: What is the difference between TRD-N60-RZ and TRD-N60-RZWD?

A: Both share the same core electrical and mechanical specifications — 60 PPR, 8mm solid shaft, 50mm body, 5–30VDC push-pull output. The key difference is termination and protection rating. The RZ version comes with a 0.5m cable with tinned ends and an IP50 (dust proof) rating. The RZWD version has a 2-meter pigtail cable and an IP65 (splash-proof/waterjet) rating. Choose RZ for dry cabinet installations with custom cabling, and RZWD where pre-made cable length and higher ingress protection are needed.

Q: What control output does the TRD-N60-RZ produce?

A: It produces a 2-phase quadrature output (Phase A and Phase B, 90° apart) plus an origin/index pulse (Phase Z) once per revolution. This combination allows the controller to determine both speed and direction of rotation, and to establish a homing reference point.

Q: Is the TRD-N60-RZ compatible with my PLC's high-speed counter input?

A: The push-pull output at 5–30VDC is compatible with the vast majority of PLC high-speed counter (HSC) inputs from brands including Koyo/AutomationDirect, Siemens, Mitsubishi, Omron, and Rockwell. Always confirm your PLC's input voltage range and whether it requires NPN (sink), PNP (source), or push-pull signal logic before wiring.

Q: What is the maximum speed at which this encoder can operate reliably?

A: The maximum electrical response frequency is 100 kHz. For a 60 PPR encoder, the maximum rotational speed before signal dropout is calculated as (100,000 Hz ÷ 60 PPR) × 60 = 100,000 RPM theoretically. In practice, the mechanical maximum speed of the shaft bearing is the real limiting factor at this resolution — the electrical limit is effectively not a constraint for any normal motor application.

Q: Does the TRD-N60-RZ require an external pull-up resistor?

A: No. The push-pull (totem-pole) output drives both logic high and logic low actively, so no external pull-up resistor is required. This is one of the advantages of push-pull over open-collector outputs in noisy industrial environments.

Q: What does "New Original" mean for this listing?

A: The unit is factory-new and in its original manufacturer packaging, sourced directly — not refurbished, reconditioned, or previously installed. Koyo/JTEKT is the manufacturer of origin; the encoder ships in the condition it left the factory.

Q: Can this encoder be used as a direct drop-in replacement for other TRD-N series models with the same connector suffix?

A: If you are replacing a TRD-N60-RZ with another TRD-N60-RZ, it is a direct one-for-one replacement. If you are considering a different PPR variant (e.g., TRD-N100-RZ), the mechanical and electrical interface is identical — only the resolution changes, so your controller's pulse counting parameters would need to be updated accordingly.

TRD-N60-RZ New Original KOYO Rotary Encoder TRDN60RZ