V-855: High-Speed, Direct-Drive Linear Modules for Industrial Precision Automation

The V-855 high-speed direct-drive linear modules from PI are for industrial precision automation.

Features

  • Long travel (up to 800 mm) with narrow profile (107 mm width)
  • Highly dynamic, easy-to-use linear motor with velocities ranging up to 4 minutes/second
  • Perfect for gantry systems
  • Strong industrial design for a long lifetime
  • Permanent load capacity of 600 N
  • High-precision incremental or absolute linear encoder available
Linear Motor Stages for High Throughput & Economical Positioning in Precision Industrial Automation

Video Credit: PI (Physik Instrumente) LP

V-855, dimensions in mm.

V-855, dimensions in mm. Image Credit: PI (Physik Instrumente) LP 

Compact Industrial Design for Applications with Low Power Requirements

For industrial applications, the V-855 is a heavy-duty and highly dynamic linear stage. Its design has been constantly geared to challenging industrial conditions. It is specified by high stiffness and the usage of high-quality components: a 3-phase linear motor, recirculating ball bearing guides, and incremental or absolute linear encoder.

The high resolution of the encoders enables outstanding tracking performance, short settling times, and small tracking errors. The optional motion platform provides flexible assembly options with a triple M6 hole pattern.

Linear Motor with Direct Drive

The availability of 3-phase magnetic direct drives does not use the drivetrain's mechanical components. They transmit the drive force to the motion platform instantly and without friction. The drives reach high accelerations and velocities.

Ironless motors are ideal for positioning tasks with the most significant demands on accuracy because there is no unwanted interaction with the permanent magnets.

This enables smooth running even at the lowest velocities, and simultaneously, there is no vibration at high velocities. Nonlinearity in control behavior has been prevented, and it is possible to control any position efficiently. The drive force could be set freely.

Options

Optional accessory: V-855.TT1 motion platform

Application Fields

  • Electronics manufacturing: PCB manufacturing, printed electronics
  • Advanced manufacturing: Robotic manipulation and microassembly, industrial inkjet printing
  • Test & inspection: Noncontact 2D measurement, position sensor testing, sensor and camera placement for inspection, vibration, and acceleration testing

Specifications

Source: PI (Physik Instrumente) LP

Motion V-855.556023E0 V-855.566023E0 V-855.576023E0 V-855.556211E0 V-855.566211E0 V-855.576211E0 Tolerance
Active axes X X X X X X  
Travel range in X 200 mm 400 mm 800 mm 200 mm 400 mm 800 mm  
Acceleration in X, unloaded 50 m/s² 50 m/s² 50 m/s² 50 m/s² 50 m/s² 50 m/s² max.
Maximum velocity in X, unloaded 4000 mm/s 4000 mm/s 4000 mm/s 4000 mm/s 4000 mm/s 4000 mm/s  
Straightness (Linear crosstalk in Y with motion in X) ± 8 µm ± 12 µm ± 20 µm ± 8 µm ± 12 µm ± 20 µm max.
Flatness (Linear crosstalk in Z with motion in X) ± 10 µm ± 10 µm ± 10 µm ± 10 µm ± 10 µm ± 10 µm max.
Pitch (Rotational crosstalk in θY with motion in X) ± 75 µrad ± 100 µrad ± 150 µrad ± 75 µrad ± 100 µrad ± 150 µrad max.
Yaw (Rotational crosstalk in θZ with motion in X) ± 125 µrad ± 150 µrad ± 200 µrad ± 125 µrad ± 150 µrad ± 200 µrad max.
Positioning V-855.556023E0 V-855.566023E0 V-855.576023E0 V-855.556211E0 V-855.566211E0 V-855.576211E0 Tolerance
Integrated sensor Absolute linear encoder Absolute linear encoder Absolute linear encoder Incremental linear encoder Incremental linear encoder Incremental linear encoder  
Bidirectional repeatability in X ± 1 µm ± 1 µm ± 1 µm ± 1 µm ± 1 µm ± 1 µm max.
Positioning accuracy in X, uncalibrated ± 10 µm ± 15 µm ± 20 µm ± 10 µm ± 15 µm ± 20 µm max.
Minimum incremental motion in X 0.1 µm 0.1 µm 0.1 µm 0.1 µm 0.1 µm 0.1 µm max.
Sensor signal BiSS-C BiSS-C BiSS-C Sin/cos, 1 V peak-peak Sin/cos, 1 V peak-peak Sin/cos, 1 V peak-peak  
Sensor resolution 5 nm 5 nm 5 nm        
Sensor signal period       20 µm 20 µm 20 µm  
Limit switches       Hall effect, N/C contact, 5 V, NPN Hall effect, N/C contact, 5 V, NPN Hall effect, N/C contact, 5 V, NPN  
Drive Properties V-855.556023E0 V-855.566023E0 V-855.576023E0 V-855.556211E0 V-855.566211E0 V-855.576211E0 Tolerance
Drive type Ironless 3-phase linear motor Ironless 3-phase linear motor Ironless 3-phase linear motor Ironless 3-phase linear motor Ironless 3-phase linear motor Ironless 3-phase linear motor  
Nominal voltage 60 V 60 V 60 V 60 V 60 V 60 V  
Peak voltage 60 V 60 V 60 V 60 V 60 V 60 V  
Nominal current, RMS 3.2 A 3.2 A 3.2 A 3.2 A 3.2 A 3.2 A typ.
Peak current, RMS 7.3 A 7.3 A 7.3 A 7.3 A 7.3 A 7.3 A typ.
Drive force in negative direction of motion in X 39 N 39 N 39 N 39 N 39 N 39 N typ.
Drive force in positive direction of motion in X 39 N 39 N 39 N 39 N 39 N 39 N typ.
Peak force in negative direction of motion in X 90 N 90 N 90 N 90 N 90 N 90 N  
Peak force in positive direction of motion in X 90 N 90 N 90 N 90 N 90 N 90 N  
Force constant 12.4 N/A 12.4 N/A 12.4 N/A 12.4 N/A 12.4 N/A 12.4 N/A  
Motor constant 5.39 N/√W 5.39 N/√W 5.39 N/√W 5.39 N/√W 5.39 N/√W 5.39 N/√W typ.
Time constant 0.36 ms 0.36 ms 0.36 ms 0.36 ms 0.36 ms 0.36 ms  
Resistance phase-phase 3.5 Ω 3.5 Ω 3.5 Ω 3.5 Ω 3.5 Ω 3.5 Ω typ.
Inductance phase-phase 1.2 mH 1.2 mH 1.2 mH 1.2 mH 1.2 mH 1.2 mH  
Back EMF phase-phase 10 V·s/m 10 V·s/m 10 V·s/m 10 V·s/m 10 V·s/m 10 V·s/m max.
Pole pitch N-N 24 mm 24 mm 24 mm 24 mm 24 mm 24 mm  
Mechanical Properties V-855.556023E0 V-855.566023E0 V-855.576023E0 V-855.556211E0 V-855.566211E0 V-855.576211E0 Tolerance
Guide Recirculating ball bearing guide Recirculating ball bearing guide Recirculating ball bearing guide Recirculating ball bearing guide Recirculating ball bearing guide Recirculating ball bearing guide  
Moved mass in X, unloaded 800 g 800 g 800 g 800 g 800 g 800 g  
Permissible push force in Y 60 N 60 N 60 N 60 N 60 N 60 N max.
Permissible push force in Z 600 N 600 N 600 N 600 N 600 N 600 N max.
Overall mass 3800 g 6800 g 10500 g 3800 g 6800 g 10500 g  
Material

Aluminum, black anodized, steel (guide rail)

Aluminum, black anodized, steel (guide rail)

Aluminum, black anodized, steel (guide rail)

Aluminum, black anodized, steel (guide rail)

Aluminum, black anodized, steel (guide rail)

Aluminum, black anodized, steel (guide rail)

 
Miscellaneous V-855.556023E0 V-855.566023E0 V-855.576023E0 V-855.556211E0 V-855.566211E0 V-855.576211E0 Tolerance
Connector HD D-sub 26-pin (m) HD D-sub 26-pin (m) HD D-sub 26-pin (m) HD D-sub 26-pin (m) HD D-sub 26-pin (m) HD D-sub 26-pin (m)  
Sensor connector D-sub 15-pole (f) D-sub 15-pole (f) D-sub 15-pole (f) D-sub 15-pole (f) D-sub 15-pole (f) D-sub 15-pole (f)  
Cable length 1 m 1 m 1 m 1 m 1 m 1 m  
Operating temperature range 5 to 40 °C 5 to 40 °C 5 to 40 °C 5 to 40 °C 5 to 40 °C 5 to 40 °C  
Recommended controllers / drivers

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

G-901: G-901.R319, G-901.R3199, G-901.R4199

ACS modular controller

 

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