XAC77 Profibus-DP
®
4
Electrical connections
4.1 Connection cap
WARNING
Do not remove or mount the connection cap with power supply switched ON.
Damage may be caused to internal components.
The terminal connector for connecting the power supply and the BUS IN and
BUS OUT cables as well as the dip-switches meant to set the baud rate and
activate the termination resistance are located inside the encoder connection
cap. Thus you must remove the connection cap to access any of them.
NOTE
Be careful not to damage the internal components when you perform this
operation.
To remove the connection cap loosen the six screws 1. Please be careful with
the internal 15-pin D-SUB connector.
Always replace the connection cap at the end of the operation. Take care in re-
connecting the internal 15-pin D-SUB connector. Tighten the screws 1 using a
tightening torque of approx. 2.5 Nm.
WARNING
You are required to check that the encoder body and the connection cap are at
the same potential before replacing the connection cap!
grounding screw
4.2 Ground connection
Minimize noise by connecting the shield and the encoder frame to ground
(GND). Make sure that ground (GND) is not affected by noise. It is recommended
to provide the ground connection as close as possible to the encoder. We
suggest using the ground screw provided in the cap (see Figure above).
MAN XAC77 PX I_E 1.0.odt
31
Electrical connections
