Rail Order Code Structure
Rail Order Code Format
AMS 4B S [Size]-[Type]-[Acc]-[Cover]-[Ref]-[L3]-[L5]-[L10]
| Field | Description | Options |
|---|---|---|
| AMS 4B S | Product Series | Fixed value |
| Size | Size | 15, 20, 25, 30, 35, 45 |
| Type | Rail Type | N = Standard, C = Corrosion Resistant, ND = Fully Hardened Standard, CD = Fully Hardened with Cover |
| Acc | Accuracy Grade | G0, G1, G2, G3 |
| Cover | Cover Strip | KC = With Cover, OC = Without |
| Ref | Reference Marks | R1 = Every 50mm, R2 = Single |
| L3 | Rail Length (mm) | As required |
| L5 | First Hole Position (mm) | Standard value by size or custom |
| L10 | Last Hole Position (mm) | Standard value by size or custom |
Carriage Order Code Structure (AMSA Analog)
AMSA Carriage Code Format
AMSA 4B W [Size]-[Type]-[Reading head position]-[Accuracy]-[Preload]-[Reference side]-[Coating]-[Lubrication connection]-[Factory lubrication]-[Interface]
| Field | Description | Options |
|---|---|---|
| AMS 4B W | Product Series | Fixed value |
| Size | Size | 15, 20, 25, 30, 35, 45 |
| Style | Carriage Style | A, B, C, D, E, F, G |
| Reading head position | Reading head position | P1 = Top right, P3 = Bottom left |
| Accuracy class | Accuracy class | G0 = Highly accurate, G1 = Very accurate, G2 = Accurate, G3 = Standard |
| Preload | Preload | V0 = Very low, V1 = Low, V2 = Medium, V3 = High |
| Reference side | Reference side | R1 = Reference bottom (below or right), R2 = Reference top (top or left) |
| Coating | Coating | CN = None, CH = Hard chromium |
| Lubrication port position | Lubrication port position | S10 = Left center, S20 = Right center, S11 = Top left, S21 = Top right, S12 = Lower left side, S22 = Lower right side, S13 = Upper left side, S23 = Upper right side, S32 = Left side (separate lubrication on both sides), S42 = Right side (separate lubrication on both sides), S49 = |
| Lube | Lubrication | LN, LG, LV |
| Interface | Read head cable outlet type | TSU / TRU / TMU (analogue 1 Vpp) |
Carriage Order Code Structure (AMSD Digital)
AMSD Carriage Code Format
AMSD 4B W [Size]-[Type]-[Reading head position]-[Accuracy]-[Preload]-[Reference side]-[Coating]-[Lubrication connection]-[Factory lubrication]-[Interface]-[Interpolation]-[Frequency]-[Reference pulse]
| Field | Description | Options |
|---|---|---|
| Interface | Read head cable outlet type | TSD / TRD / TMD (digital RS 422) |
| Interpolation – Frequency | Resolution | -010-80 = 5 µm (10×) / -050-80 = 1 µm (50×) / -250-80 = 0.2 µm (250×), maximum output frequency 8 MHz in each case |
| Reference pulse | ZN / ZF | ZN is strictly synchronous with the incremental signals; ZF is extended to 550 µs ± 50 µs |
Carriage Style Description
| Illustration | Style | Width | Length | Load Capacity | Suitable Applications |
|---|---|---|---|---|---|
 | A | Wide | Short | Standard | General applications |
 | B | Wide | Long | High | High load applications |
 | C | Narrow | Short | Standard | Space-constrained applications |
 | D | Narrow | Long | High | Space-constrained high load |
Order Code Examples
Rail Example
AMS 4B S 25-N-G1-KC-R1-1000-25-25
- AMS 4B S - AMS 4B Rail
- 25 - Size 25
- N - Standard Rail
- G1 - Accuracy Grade G1
- KC - With Cover Strip
- R1 - Reference Marks Every 50mm
- 1000 - Length 1000mm
- 25-25 - First/Last Hole Position 25mm
Carriage Example (Analog Output)
AMSA 4B W 25-B-P1-G1-V1-R1-CN-S11-LV-TSU
- AMS 4B W - AMS 4B Carriage
- 25 - Size 25
- B - Long Carriage (Wide)
- V1 - Light Preload
- S11 - Sealing Both Ends
- LV - Standard Grease Lubrication
- TSU - AMSA analogue 1 Vpp interface
Carriage Example (Digital Output)
AMSD 4B W 30-A-P1-G1-V2-R1-CN-S11-LV-TSD-050-80-ZN
- AMS 4B W - AMS 4B Carriage
- 30 - Size 30
- A - Short Carriage (Wide)
- V2 - Standard Preload
- S11 - Sealing Both Ends
- LV - Standard Grease Lubrication
- TSD-050-80-ZN - AMSD digital interface, interpolation 50× (resolution 1 µm), synchronous reference pulse
Output Type Selection Guide
| Application Requirement | Recommended Selection | Reason |
|---|---|---|
| Highest Resolution | AMSA (analogue 1 Vpp) | Resolution is determined by the downstream evaluation electronics, up to 0.0625 µm |
| System Simplification | AMSD -050-80 / -250-80 | Interpolation performed inside the read head, direct connection to controller |
| Long Distance Transmission | AMSD (RS 422) | Differential signal for noise immunity |
| High Speed Motion | AMSA (TSU) or AMSD -010-80 | Lower resolution suitable for high speed |
| Cost Consideration | AMSD -050-80 / -010-80 | No additional interpolator required |
Standard First/Last Hole Positions by Size
| Size | L5/L10 (mm) | L4 Hole Pitch (mm) |
|---|---|---|
| Size 15 | 20 | 40 |
| Size 20 | 25 | 60 |
| Size 25 | 25 | 60 |
| Size 30 | 30 | 60 |
| Size 35 | 30 | 60 |
| Size 45 | 40 | 80 |
Ordering Notes
Important Reminders
- Size 15 only available in ND/CD fully hardened rail types
- AMS 4B carriages have integrated read heads, output interface type must be specified
- The resolution of the analogue AMSA is determined by the interpolation capability of the downstream evaluation electronics
- Digital output (DR) requires separate digital cable purchase
- Incremental systems require homing procedure after power-on
- For absolute measurement, select AMSABS 4B series