Rtlc20-S Scale Technical Specifications; Reference Mark; Limit Switches - Renishaw TONiC FS T3 Series Functional Safety Installation Manual And Safety Manual

RTLC20-S scale technical specifications
Form (H × W)
Pitch
Accuracy (at 20 °C)
(includes slope and linearity)
Linearity
Supplied lengths
Material
Coefficient of thermal expansion (CTE)
(at 20 °C)
Installation temperature
Thermal expansion mismatch
Datum fixing
† For lengths >2 m RTLC20 with FASTRACK is recommended.
TONiC RTLC20-S Functional Safety installation guide and safety manual
0.4 mm × 8 mm (includes adhesive)
20 µm
±5 µm/m calibration traceable to International Standards
±2.5 µm/m achievable with 2 point error correction
20 mm to 5 m †
Hardened and tempered martensitic stainless steel fitted
with a self-adhesive backing tape
10.1 ±0.2 µm/m/°C
10 °C to 35 °C
(CTE − CTE ) × ∆T × L
substrate scale
Where ∆T is the temperature range between installation and
the extreme of operating or storage and L is the scale length
between datum and its furthest end.
NOTE: If there is more than ±1 mm of thermal expansion
mismatch in a system please contact Renishaw for further
assistance
Loctite 435 with A-9585-0028 clamp

Reference mark

Type
Selection
L ≤100 mm Single reference mark at scale centre
L >100 mm Reference marks at 50 mm spacing (first reference mark 50 mm from
Mounting
Repeatability

Limit switches

Type
Trigger point
Mounting
Repeatablity
Original instructions
Customer selected IN‑TRAC reference mark, directly embedded into
incremental track. Bi-directional position repeatability.
Single reference mark selection by selector magnet
(A-9653-0143) customer positioned
scale end)
Self-adhesive backing tape or bolted
Unit of resolution repeatability (bi-directional) across full system rated speed
and temperature ranges
Magnetic actuators; with dimple triggers Q limit, without dimple triggers P limit
(see 'RTLC20-S scale installation drawing' on page
The limit output is nominally asserted when the readhead limit switch sensor
passes the limit magnet leading edge, but can trigger up to 3 mm before
that edge
Customer placed at desired locations
Self-adhesive backing tape or bolted
< 0.1 mm
7).
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