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9 4 1 Terminal type PS7k2 – PS25k2
The terminal system used in PSk2 controllers is provided by
Weidmüller. These terminals use tension clamp technol-
ogy which allows for faster termination of system wiring
and provides higher reliability as under or over clamping
problems associated with screw terminals are reduced. A
stainless steel spring is used to securely connect the wire to
the current bar.
The cable entries are on the top of the terminal (either
vertical or at 45°). This has the advantage that it is easier
to see where the wires are inserted and so reduces wiring
errors.
Cf. below "Figure 7: Weidmüller single and double stage
terminals", these are examples of the Weidmüller terminal
system, a ZDU 16 single-stage and ZDK 2.5 double-stage.
Strip the insulation from the end of the cable to be termi-
nated. For a 16 mm² cable strip 10 mm / 0.4" of insulation,
for 2.5 mm² clamps strip 5 mm / 0.2" of insulation.
To install the wires push a flat screw driver downward
into the terminal block. Push the stripped cable into the
terminal. When the screwdriver is removed a high contact
force is supplied by the stainless steel clamp. Gently pull
the cable to check it is secured, cf. below "Figure 8: Weid-
müller clamp cable fixing".
Figure 7: Weidmüller single and double stage terminals
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29, www.lorentz.de
All specifi cations and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may
differ from actual products depending on local market requirements and regulations.
9 4 2 Terminal type PS40k2
In PS40k2 controllers, Weidmüller screw type terminals for
cables up to 35 mm² are used to connect the PV power
connection (POWER IN+, POWER IN-), the pump motor
wiring (Pump L1, Pump L2, Pump L3) and the protective
earth connections. The cable entries are at the side of the
terminal.
To install the wires push the stripped cable into the
terminal and use a screwdriver to tighten the screw.
All other terminals use tension clamp technology; please
refer to "9.4.1 Terminal type PS7k2 – PS25k2" for wiring
instructions.
Figure 8: Weidmüller clamp cable fixing
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Sun. Water.
Life.
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