Output Signals; Speed - Renishaw RGH24 Installation Manual

Output signals

RGH24 D, X, Z, W, Y, H, I, O RS422A digital
Function Signal Colour
5 V Brown
Power
0 V White
+
Green
A
-
Yellow
Incremental
signals
+ Blue
B
-
Red
Reference
Z + /Q-
Pink
mark/Limit
Z - / Q+ Grey
switch
Inner Inner shield
Shield
Outer Outer shield
Green N/A
Remote
LED driver
N/A
Red
3-state Alarm
For RGH24D, X, Z, incremental channels forced open circuit for >20 ms when signal too low for
reliable operation.
For RGH24W, Y, H, I, O incremental channels forced open circuit for >10 ms when signal too low or
speed too high for reliable operation.
RGH24B 1Vpp analogue
Function Signal
5 V
Power
0 V
V + /I +
1 1
V - /I -
Incremental
1 1
signals
V + /I +
2 2
V - /I -
2 2
V + /I +
Reference
0 0
mark
V - /I -
0 0
Inner
Shield
Outer
RGH24 RGS20 installation guide
9 pin D type JST 15 pin D type
(A) (Z)
5 9
1 10
2 8
6 7
2
4
8 1
3 5
7 6
9 N/A
Case N/A Case
N/A 4
N/A
N/A 3
N/A
Colour 9 pin D type (A) 15 pin D type (L)
Brown 4, 5
5
White 12, 13
1
9
Green 2
Yellow 6 1
Blue 4 10
Red 8 2
Pink 3 3
Grey 11
7
– 15
9
Case
– Case
52
(D)
7,8
2,9
9 pin D type plug (Termination code A)
14
6
13
10 pin JST plug
(Termination code Z)
5
12

Speed

4
Digital readheads
15
Non-clocked output readheads
Head type
D (5 μm)
X (1 μm)
Z (0.5 μm)
Clocked output readheads
The RGH24W, Y, H, I and O readheads are available with a variety of different clocked outputs.
Customers must ensure they comply with the lowest recommended counter input frequency.
JST
Standard
connector
connector
options
options
(A, D and F) (Z)
60 –
61 –
62 –
30 35
31 36
32 37
33 38
NOTE: Maximum speeds of clocked output variants assume 3 m maximum cable length and minimum 5 V supply at
readhead connector.
Analogue readheads
RGH24B – 4 m/s (-3dB)
52
16
31
15 pin D type plug (Termination code D, L)
Lowest recommended counter input
Maximum speed (m/s)
8.0
5.0
3.0
Maximum speed (m/s)
W Y H
(0.2 μm) (0.1 μm) (50 nm) (20 nm)
– 3.0 –
3.0 1.6 –
1.6 0.8 –
– 0.7 0.35
– 0.5 0.25
0.7 – –
0.5 0.25 0.12
16
40
frequency (MHz)
Encoder velocity (m/s)
x 4 safety
Resolution (μm)
factor
Lowest
recommended
counter input
I O
frequency (MHz)
(10 nm)
– – 50
– – 20
– – 10
12
0.13 0.65
8
0.09 0.045
– – 6
0.04 0.02 4
7