PG DRIVES TECHNOLOGY S-DRIVE – APPENDIX - A
SK76745/10
4) Optionally, a guard conductor can be used to surround the throttle wiper conductor. This should be connected
to the throttle low reference.
5.3 S-covers (S-Drive connector covers)
It is recommended that S-covers are used to protect the S-Drive tiller interface connector wiring and connections.
5.4 Orientation of the controller
It is recommended that the guidance in the S-Drive Technical Manual (SK76745) is followed concerning controller orientation and
cable routing.
5.5 Splash-proofing
It is recommended that the tiller circuitry be protected from exposure to moisture, such as rain-water, splashes from passing
vehicles, and water that might be used to wash the tiller.
If the S-cover is not used, it is recommended that the S-Drive be similarly protected from exposure to moisture.
5.6 Connections
Where a cable is used to carry the tiller interface signals from the tiller to the S-Drive, it is important to order the connections so
that the throttle wiper is not at risk of leakage to signals other than throttle potentiometer connections (see 5.1).
It is important to avoid damage to such cables, for example by careful routing, avoiding flexing and use of grommets to protect
insulation from sharp edges. There is a high risk of non-conformity if cable damage leads to a risk of leakage between the throttle
wiper and other conductors.
Where intermediate connectors are used for the tiller interface signals, it is important to order the connections in the connectors
so that the throttle wiper is not at risk of leakage to signals other than throttle potentiometer connections (see 5.1).
If intermediate connectors have spare unused terminals it is recommended to order the connections so that the unused
terminals will increase the creepage distances between the throttle potentiometer signals and the other connections.
It is recommended that the number of connectors between the tiller and the S-Drive is kept to a minimum.
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