Daikin Hubbard GCU2040PXB1, Installation, Commissioning And Maintenance Manual

Page: 71 / 172

22
ENG
pRack PR300T +0300018EN rel. 1.5 - 02.05.2017
3.3.1 Connecting universal NTC temperature sensors
The analogue inputs are compatible with 2-wire NTC sensors.
The inputs must be set for NTC Signals from the user terminal or using the
default value installation procedure. The connection diagram is shown
below:
pR300 T
U
1
U2 U3 GND +
VDC
U4 GND U5 GND
J 1 J24 J2 J3
G G0
+
V
term
GND
+
5
V
REF
Fig. 3.a
Hardware Version Terminals NTC probe cable
S
GND, U4, U5 1
U1, U2, U3, U4, U5 2
M, D
GND, U4, U5 1
U1, U2, U3, U4, U5, U6, U7, U8, S2, S4 2
L
GND, U4, U5, U9, U10 1
U1, U2, U3, U4, U5, U6, U7, U8, U9, U10 2
Tab. 3.b
Note: the two wires of the NTC sensors are equivalent, as they have
no polarity, therefore it is not necessary to follow any specifi c order
when connecting to the terminal block.
3.3.2 Connecting PT1000 temperature sensors
The pRack PR300T can be connected to 2-wire PT1000 sensors for all high
temperature applications; the operating range is: -100 to 200 °C.
The inputs must be pre-confi gured for PT1000 Signals from the user
terminal or using the default value installation procedure.
The connection diagram is shown below:
pR300 T
J 1
G G0
U
1
U2 U3 GND +
VDC
U4 GND U5 GND
J 1 J24 J2 J3
G G0
+
V
term
GND
+
5
V
REF
Fig. 3.b
Hardware Version Terminals P T1000 probe cable
S, M
U4, U5, GND 1
U4, U5 2
L
U4, U5, U9, U10 1
U4, U5, U9, U10 2
Tab. 3.c
Important: for correct measurement by the PT1000 sensor, each
sensor wire needs to be connected to a dedicated terminal, as
shown in Fig. 3.b.
Note : the two wires of the PT1000 sensors are equivalent, as they
have no polarity, therefore it is not necessary to follow any specifi c
order when connecting to the terminal block.
3.3.3 Connecting current pressure probes
pRack PR300T can be connected to all CAREL SPK* series active pressure
probes or any other pressure sensors available on the market with 0…20
mA or 4…20 mA Signal.
The inputs must be set for 0…20 mA or 4…20 mA Signals from the user
terminal or using the default value installation procedure.
The connection diagram is shown below:
pR300 T
U
1
U2 U3 GND +
VDC
U4 GND U5 GND
J 1 J24 J2 J3
G G0
+
V
term
GND
+
5
V
REF
Fig. 3.c
Hardware
Version
Terminals P robe wire colour Description
S, M, L, D
+VDC brown power supply
U1, U2, U3, B6, B7, B8, S1, S3 white Signal
Tab. 3.d
Important : do not connect the green wire.
3.3.4 Connecting 0 to 5 V ratiometric pressure probes
pRack PR300T can be connected to any other pressure probes available
on the market with 0 to 5 V ratiometric sensor.
The inputs must be set for 0 to 5 V Signals from the user terminal or using
the default value installation procedure.
The connection diagram is shown below:
pR300 T
U
1
U2 U3 GND +
VDC
U4 GND U5 GND
J 1 J24 J2 J3
G G0
+
V
term
GND
+
5
V
REF
Fig. 3.d
Hardware
Version
Terminals
P robe wire
colour
Description
S, M, L, D
+5 Vref black power supply
GND green
power supply
reference
U1, U2, U3, U6, U7, U8, S1, S3 white Signal
Tab. 3.e
Page 71 of 172
Copyright HPL March 2021 P4114S Rev 03