Norgren VS18 Series Valve Advantage - Manual (Page 37)

VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
7 M
ULTIPOLE
7.1 G ENERAL INFORMATION
VS18/VS26 Multipole valve islands are intended for direct connection to a control system output
device. The system is designed for either PNP-switching (common negative anode) and NPN-
switching (common positive anode).
VS18/VS26 Multipole valve islands consist of a minimum two valve stations. The maximum
number of valve stations is 20 (40 solenoids). You have to consider the maximum number of
possible valve stations of each Multipole connector. See section
9 for information of field
expansion of the valve island.
Below listed connectors are available for the electrical connection to the VS18/VS26 Multipole
valve islands. Please refer to the indicated section for detailed information on these.
• D-Sub 9-, 15-, 25- or 44-pin
Section 7.2
• NPTF1“ Conduit entry with terminals Section 7.3
• M23 19-pin connector Section 7.4
7.1.1 24V DC power supply
VS18/VS26 Multipole 24V DC versions are designed to be used with a protective extra low
voltage (PELV) power supply (UL Class 2 Supply only). Therefore, the power supply used must
meet the IEC standard 742/EN60742/VDE 0551 (PELV).
7.1.2 115V AC power supply
VS18/VS26 Multipole 115V AC versions correspond to the protection class I. Connection of the
protective earth (PE) ground is required.
7.1.3 Max current load on valve connectors with 24V DC
I
max
= 60mA * n
n = number of energized solenoids
7.1.4 Max current load on valve connectors with 115V AC
I
max
= 13mA * n
n = number of energized solenoids
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