User Manual

Page 32
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PSB 9000 2.5 kW Series
2.3.5.2 Cable lead and plastic cover
A plastic cover for contact protection is included for the DC terminal. It should always be installed. The cover for
type2(seepictureabove)isxedtotheconnectoritself,fortype1tothebackofthedevice.Furthermorethe
cover for type 1 has break outs so that the supply cable can be laid in various directions.
The connection angle and the required bending radius for the DC cable must be taken into
account when planning the depth of the complete device, especially when installing in a 19”
cabinet or similar. For type 2 connectors only a horizontal lead can be used to allow for instal-
lation of the cover.
Examples of the type 1 terminal:
• 90° up or down
• space saving in depth
• no bending radius
• horizontal lead
• space saving in height
• large bending radius
2.3.6 Grounding of the DC terminal
Grounding one of the DC terminal poles is permissible, but causes potential shift against PE on the opposite pole.
Becauseofinsulation,thereisamax.allowedpotentialshiftdenedfortheDCterminalpoles,whichdependson
the device model. Refer to „1.8.3. Specic technical data“ for details.
2.3.7 Connecting the analog interface
The 15 pole connector (Type: Sub-D, D-Sub) on the rear side is an analog interface. To connect this to a controlling
hardware (PC, electronic circuit), a standard plug is necessary (not included in the scope of delivery). It’s generally
advisabletoswitchthedevicecompletelyo󰀨beforeconnectingordisconnectingthisconnector,butatleastthe
DC terminal.
2.3.8 Connection of remote sense
Both pins „NC“ of the Sense connector must not be wired!
• Remote sensing is only eective during constant voltage operation (CV) and for other regulation
modes the sense input should be disconnected, if possible, because connecting it generally
increases the oscillation tendency
• The cross section of the sense cables is noncritical. Recommendation for cables up to 5 m
(16 ft): use at least 0.5 mm²
• Sense cables should be not twisted and Sens- laid close to DC-, as well as Sense+ close to
DC+ avoid or to damp oscillation that could occur. If necessary, an additional capacitor should
be installed at the load / source or the DC terminal to eliminate oscillation
• The + sense cables must be connected to + on the load/source and - sense to - at the load/
source, otherwise the sense input could be damaged. For an example see Figure 8 below.
• In master-slave operation, the remote sensing must be connected to the master unit only