Wiring Terminals; Wiring Diagrams - Siemens RWD45U Installation And Commissioning Manual

RWD45U Controller Installation and Commissioning Guide

Wiring Terminals

Wiring Diagrams

Figure 5. Applications 20 through 39, 50 through 69, and 80 through 89.
Figure 6. Applications 10 through 19, 40 through 49, and 70 through 79.
CAUTION:
The TOOL signal ground is galvanically connected to G0 inside the controller. If the signal line of the computer
is grounded to Earth, the G0 line after TOOL connection will be grounded as well. This will change the SELV
to a PELV.
Siemens Industry, Inc.
NOTE:
Screwed terminals for cables with min
2 × 16 or 1 × 14 AWG.
Figure 4. Wiring Terminals.
Document Number 129-409
G, G0 SELV 24 Vac power supply
D1 Digital input
M Ground (G0) for signal inputs
and universal inputs
Q1 to Q4 Relay outputs Max. rating 24
to 240 Vac
Vac/5A res/5 FLA/30 LRA/
1/2 HP
X1 Signal input (main input: Ni
1000, Pt 1000 and 0 to 10 Vdc)
X2 Signal input (aux input Ni 1000,
Pt 1000, 0 to 10 Vdc, remote
setting unit and digital input)
Signal input (Eco sensor or
X3
nd
2 loop input: Ni1000,
Pt1000, 0 to 10 Vdc)
Y1 Analog output 0 to 10 Vdc
Tool Communication port for PC
(9-pin plug)
CR1 Compressor stage 1
CR2 Compressor stage 2
CR3 Compressor stage 3
RV Reversing valve relay
Y1 Equipment with 0 to 10 Vdc input
(Damper actuators)
X1 Room temperature sensor
X2 Auxiliary sensor or a digital input
X3 Economy or 2nd loop sensor
S1 Switch or time clock
PC Personal computer
NOTE: For a single compressor, CR2 and
CR3 are not connected.
For a dual compressor, CR3 is not
connected
C1 Cooling stage 1
C2 Cooling stage 2
H1 Heating stage 1
H2 Heating stage 2
Y1 Equipment with 0 to 10 Vdc input
(Damper actuators)
X1 Room temperature sensor
X2 Auxiliary sensor or a digital input
X3 Economy or 2nd loop sensor
S1 Switch or time clock
PC Personal computer
October 5, 2009
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