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6.1.5 Interface description
a) The 5K steer angle feedback potentiometer should be rigidly mounted to the
steering linkage with no play. The pot wiper is connected to Pin #11 of CNA
connector. The ends of the pot are connected to Pins #1 and #2 of CNA connector.
This feedback pot is necessary when either a direction gauge or the automatic
centering operation is required.
b) Pin 5 on connector CNA is connected to the FWD (drive unit side) travel demand.
Pin 15 on connector CNA is connected to REV (load wheels side) travel demand.
Travel demands may be active high (plus battery) or low (minus battery). Specify
the mode you want by configuring the Jumper J7 (see 5).
The travel demands are only required to maintain the steering control active
after alignment when the truck is moving.
c) The status device is an optional extra (12Vdc max 40mA Buzzer or Lamp)
supplying an audible or visible warning when a steering alarm occurs. It should be
connected between connector CNB Pin #2 (16Vdc supply) and CNB Pin #8 (device
driver collector).
d) The Eps-Ac provides an internal safety contact accessible through connector CNB
pin #7 and CNB pin # 1. It should be used to stop the traction and to enable an
electromechanical brake when a steering alarm occurs. This safety contact is
closed when the key switch is turned on. The contact opens where there is a
steering alarm.This safety contact is floating, that means it's possible to connect it
either to the plus battery or to the minus battery. Ensure that the pin #7 is
connected to an equal or higher voltage than pin #1.
For safety two cascaded safety switches are internally connected between pin # 7
and pin #1. The first is managed by the Main processor, the second is managed by
the supervisor processor.
Note:
If the safety switch is connected in series with external switches (seat switch,
tiller switch or similar) it's recommended that the steering safety switch
should be directly connected to the supply source (plus battery or minus
battery) with no interposed switches. (it should be the first the chain: see fig.
6.1.5.1).
Содержание EPS-AC
Страница 9: ...Page 9 3 MECHANICAL SPECIFICATIONS...
Страница 13: ...Page 13 6 POWER CONNECTION DIAGRAM Note Reversing Battery positive and negative will damage the unit...
Страница 14: ...Page 14 6 1 ELECTRICAL DRAWING 6 1 1 Tacho generator steering...
Страница 15: ...Page 15 6 1 2 Stepper motor steering...
Страница 16: ...Page 16 6 1 3 Tacho generator steering with automatic centering...
Страница 17: ...Page 17 6 1 4 Stepper motor steering with automatic centering...
Страница 28: ...Page 28 10 1 MANUAL MODE STEERING OPTION HAND SET FUNCTION MAP...
Страница 29: ...Page 29 10 2 MANUAL MODE STEERING OPTION AND AUTOMATIC CENTERING HAND SET FUNCTION MAP...