6
4 Installation
4.1 Fixing the sensor
►
Choose a plane mounting surface�
►
Fix the unit using 4 screws, tightening torque 1�5���2�5 Nm�
Recommendation:
M6 hex-head screws (steel or stainless steel)
►
Adjust M12 connectors precisely and screw them fully into the unit, tightening
torque 1�5 Nm�
5 Electrical connection
The inclination sensor is connected via a 5-pin M12 connector�
4
2
1
3
5
1: CAN_GND Ground
2: CAN_V+ Supply voltage 24 V DC (+UB)
3: GND
4: CAN_H High bus cable
5: CAN_L Low bus cable
M12 connector CAN-In
3
1
2
4
5
1: CAN_GND Ground
2: CAN_V+ Supply voltage 24 V DC (+UB)
3: GND
4: CAN_H High bus cable
5: CAN_L Low bus cable
M12 socket CAN-Out
5.1 Bus termination
One terminating resistor is required
●
if the sensor is connected at the end or the beginning of the bus�
● in case of a transmission rate ≥ 50 kBaud.
This prevents that information will be transmitted back to the CAN bus�
Dynamic ifm sensors have an integrated 120 Ω termination resistor that can be
activated (1) or deactivated (0) (→ 9.23 Object 3002h - Termination Resistor).
The bus wires can be routed in parallel or twisted, with or without shielding in
accordance with the electromagnetic compatibility requirements� A single line
structure minimises reflection�
The following diagram shows the components for the physical layer of a two-wire
CAN bus�