Mitsubishi Interface (Bml-S1G0-M - Balluff BML-S1G0-7-M5EG-0 Serie Manual De Instrucciones

BML-S1G0-_7_ _-M5EG-_0-_ _
Absolute magnetic encoder system
6
Interfaces (continued)
6.3

Mitsubishi interface (BML-S1G0-M...)

The Mitsubishi interface is described in the
document Interfaces for BML Magnetic
Encoder System. The document is part of this
guide and must be used.
The Mitsubishi interface was qualified by Mitsubishi using
the MR-J4-_B_-140J controller. This is a fast,
asynchronous, unidirectional, byte-increment organized
interface.
The bits in the status byte Tab. 6.11 are also represented
by LED blink sequences (see section 8 on page 27).
The in- and outputs have the following data:
Signal name
+TxD/RxD
In-/output
–TxD/RxD
Tab. 6-9: In- and outputs
Resolution [µm]
0.976 (1000/1024)
1
2
5
10
Tab. 6-10: The relationship between the resolution, interpolation factor
and the maximum travel speed
2A.8 2A.7
POS_ERR 0
1)
POS_ERR: Invalid position data
1)
2) VLTG_LOW: Internal undervoltage
SIG_LOW: Sensor signals too low, air gap too great, no tape
3)
SEARCH: Sensor head is not yet completely above the magnetic tape
4)
INCONS: Inconsistency error, tape damaged
5)
NRDY: Sensor head is not yet ready (switch-on sequence), internal defect
6)
Tab. 6-11: Bits in status byte (Mitsubishi alarm code)
Data formats
The sensor head is factory set to the ordered settings for
resolution. They can only be changed using the BML
Configuration Tool (see section 10.6 on page 32).
The relationship between the resolution, interpolation factor
and the maximum travel speed is defined in Tab. 6-10 on
page 21.
www.balluff.com
Name in the interface document
Request signal / Datasignal
Interpolation factor
2048
2000
1000
400
200
2A.6 2A.5
VLTG_LOW SIG_LOW
2) 3)
Shown in interface document as
high
+TxD/RxD > –TxD/RxD
V [m/s] Max. measuring length [m]
max
5
10
2A.4 2A.3
SEARCH 0
4)
48
2A.2 2A.1
INCONS NRDY
5) 6)
english 21