Installation Guide Linear Rotary Motors
ENG
Page 16 / 39
PR02-38
NTI AG / LinMot
5.1.5 Connector Wiring Torque Measuring Shaft
View: Motor connector, plug side
Connector wiring
Torque Sensor:
M12 Connector (A-coded)
Wire colour
Sensor cable
Supply GND
1
white
Supply 24V (approx. 80 mA @ 24VDC)
2
brown
Do not connect
3
green
Torque -
4
yellow
5
grey
AGND / reference ground for the torque
sensor signal (isolated from supply GND;
connect to reference GND of the analogue
input on the servo drive).
6
pink
Do not connect
7
blue
Do not connect
8
red
Bridges from Supply Ground and Signal Ground
•
PIN 4 (force -) and PIN 1 (supply GND) are internally galvanically isolated and must not
be connected to each other. This applies to sensors with a 10-digit serial number.
Format = 0123.456.789.
•
For torque sensors with 9-digit serial number (format = 123456789) PIN 4 (torque -) and
PIN 1 (supply GND) may be bridged at the supply source (not at the transducer), if
necessary, because the galvanic isolation is not present there. Make the connection as
close as possible to the drive to avoid potential differences with respect to the drive
GND
•
The 24VDC supply must be protected with a 1AT fuse.
•
The +24V supply must not be connected / disconnected when voltage is present. The
DC supply must not be switched on the secondary side of the power supply unit.
•
It is recommended to connect pin 6 (AGND) to the reference ground of the analogue
input of the drive - in case of LinMot drives pin X4.1. realise connection as close to the
drive as possible to avoid potential differences compared to the drive GND.
•
External EMC circuitry: a ceramic capacitor 100nF / 50V can optionally be soldered
between pin 4 and pin 5 on the evaluation electronics to reduce conducted interference.
