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Technical Information
Power Cord (24 VDC)
The interface for the 24VDC power entry is a 9-pin D-sub connector (Figure 18). On
this connector pins 4, 5 and 9 are all connected 24V+. Pins 2, 7 and 8 are all
connected to 24V-. It is recommended that the Power Cord (Agilent Part Number
X3803-60033) included with the pump is used when connecting to the power
supply. To correctly connect the power cord to a power supply, attach the 16Awg
red wire to 24V+ and attach the Black wire to 24V-.
Figure 18 PIN Information
The IDP-3 24 VDC model also offers variable speed control. Apply 0-10 VDC through
Pin1 and Pin 6 of the 9-pin D-sub connector, or white (+) and blue (-) 20AWG wires
on the Agilent power cord supplied. The motor runs at full speed if there is no
control signal supplied.
If a power supply cable other than Agilent Part Number X3803-60033 is used to
supply power to the IDP-3 24VDC Dry Scroll Pump, the user becomes responsible
for ensuring that the pump and cable combination complies with any EMC
requirements that might exist in that application. All tests performed to ensure
compliance to the standards listed in the user manual were done using Agilent Part
Number X3803-60033 power cord. If a customer supplied power cable is used,
Agilent recommends using a shielded cable with length no longer than 1.5 meters.
If a customer supplied cable is being used, ensure that the construction of the cable
NOTE
has a wire/conductor connecting each of the 24V+ and 24V- pins to the power
supply. This is required to ensure proper handling of the in-rush and running
currents.
Agilent IDP-3 Dry Scroll Vacuum Pump User Manual
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