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1070072365 / 04
RhoMotion
Electrical Connections
4.3.1
Power connections
system voltages
voltage
Logik
Floppy + PCI plug
place
PCI-plug place
system voltages
voltage
IO-voltage
12-V-power supply unit
−12-V-power supply unit
4.4
Monitoring of the system voltage
All system voltages have potential reference under each other and are
connected to a place with housing potential.
max. cur-
tolerance
rent
+5 V
5 A
+12 V
1 A
−12 V
150 mA
max. cur-
tolerance
rent
24 V
10 A
For the floppy and the PCI bus, a 12-V voltage power supply is required.
It is produced by a controller and supplies 1 A. The voltage is coupled
galvanically with the 5-V- and the −12-V- power supply unit.
For the PCI-Bus plug, a −12-V voltage power supply is required. sversor-
gung benötigt. It is produced by a controller and supplies 150 mA. The
voltage is coupled galvanically with the 5-V- and the −12-V- power sup-
ply unit.
When a undervoltage error is detected, the ready contact opens and the
DC/DC converter is switched off. The converter can be then only swit-
ched on through switching off and on the 24-V voltage power supply or
through the RESET key.
When a overvoltage error is detected, the DC/DC converter is switched
off. The ready contact opens indirectly through the arising undervoltage
error.
Electric Drives
and Controls
Undervolt. detection Overvolt. protection
±3 %
+4,6 V
±5 %
+10,5 V
±5 %
−10,5 V
Undervolt. detection Overvolt. protection
reverse batt. protec-
tion
Bosch Rexroth AG
4−9
+6 V
+13 V
−13 V
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