
NAVIGUIDE 4000
056336 Rev. AA
5.2: Configuring the Steering Gear Control
Page 5–5
5.2.1.3
Unswitched / Switched Connection to Solenoid Valves
The daughter PCBs are available in two versions, unswitched or switched. When
unswitched PCBs are used, the output sections are directly connected to the re-
spective solenoid valves. In systems with more than one SCU, each SCU controls
its own set(s) of solenoids.
Fig. 5–4:
Unswitched
solenoid
daughter PCB
Switched PCBs contain relays which connect the output sections to the solenoids
only if a „This SCU On“ status signal (24 VDC) is present. Switched PCBs are re-
quired to interlock the output sections of different SCUs, when more than one SCU
is used to control the same set(s) of solenoids.
Fig. 5–5:
Switched sole-
noid daughter
PCB
pump 1 "Pump On" status
pump 1 "Right" output
pump 1 "Left" (or Dump) output
pump 2 "Right" output
pump 2 "Left" (or Dump) output
pump 2 "Pump On" status
pump 1
output section
pump 2
output section
control
circuit
to/from
SCU
pump 1 "Right" output
pump 1 "Left" (or Dump) output
pump 2 "Right" output
pump 2 "Left" (or Dump) output
pump 2 "Pump On" status
pump 1 "Pump On" status
pump 1 "Pump On"
status to other SCU
pump 1
output section
pump 2
output section
control
circuit
to/from
SCU
"Pump On"
status
"This SCU On" status
Содержание naviguide 4000
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Страница 70: ...056336 Rev AA NAVIGUIDE 4000 Page 2 46 2 3 Operating Procedures ...
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Страница 82: ...056336 Rev AA NAVIGUIDE 4000 Page 4 6 4 4 DC Daughter PCB Jumper Settings ...
Страница 128: ...056336 Rev AA NAVIGUIDE 4000 Page 6 40 6 1 SCU Setup Menu ...
Страница 174: ...056336 Rev AA NAVIGUIDE 4000 Page 7 46 7 3 Setup of 6 Key Units ...
Страница 178: ...056336 Rev AA NAVIGUIDE 4000 Page 8 4 8 2 Solenoid Daughter PCBs ...
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