Plan Electrical Connections; Remote Connection Of The Digital Outputs; Connecting The Terminals; Summary Table Of Digital Outputs According To The Versions Available - Carel PRK300L3FK User Manual

Prack pr300 no power & signal cables together read carefully in the text! compressor rack controller
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ENG
Important: the SSRs can control resistive loads powered at 24 Vac/Vdc.
For details see paragraph 2.2.8.
The fi gure shows a connection example for resistive loads.
The following fi gure illustrates correct applications for inductive loads.
J11 pLAN
J10
pR300
FieldBus card
J1
J24
J2
J11 pLAN
J10
pR300
FieldBus card
J1
J24
J2
J3
The table below shows the reference outputs for pRack models fi tted
with SSR outputs.
Hardware version
Reference relay SSR
S
7, 8
M, D
7, 12
L
7, 8, 12, 13, 14, 15
Important: the SSR relay load is powered at 24 Vac/Vdc, thus all the
other terminals in the group must be powered at 24 Vac/Vdc due to the
absence of double insulation within the group.
3.6.3
Summary table of digital outputs according to
the Versions available
Hardware
NO
NC
version
contacts
contacts
PRK300**E* Models
S
6
-
M, D
9
-
L
12
-
PRK300**F* Models
S
7
-
M, D
10
-
L
13
-
5 (8, 12, 13, 14, 15)
pRack +0300025EN rel. 1.3 - 17.12.2015
Fig. 3.l
external SSR
input
load
management
J1 5
J1 6
J1 2
J1 3
J1 4
4
3
2
1
J2 1
J2 5 BMS2
J2 6 FBus2
J1 9
B M S card
J4
J5
J3
J6
Fig. 3.m
Dedicated or the same of
external SSR
G-G0 but not in common
input
load
with other external load
management
J1 5
J1 6
J1 2
J1 3
J1 4
4
3
2
1
J2 1
J22
J2 5 BMS2
J2 6 FBus2
J1 9
B M S card
J4
J5
J7
J6
Fig. 3.n
Terminal
J14, J15
J14, J17
J14, J15, J17, J18, J21
Changeover
n.ro
relay in SSR
contact
outputs
-
8
2 (7, 8)
2 (8, 13)
13
2 (7, 12)
-
18
6 (7, 12, 13, 14, 15)
1 (8)
8
-
3 (8, 12, 13)
13
-
18
-
3.6.4

Remote connection of the digital outputs

The Sizes of the cables for the remote connection of the digital outputs
are shown in the following table:
AWG
20
15
14
If the product is installed in industrial environments (application of the EN
61000-6-2 standard) the length of the connections must be less than 30
m. This length shouldn't be exceeded in any case.

3.7 pLAN electrical connections

If the selected system confi guration involves the connection of more than
one pRack pR300 board in a pLAN, AWG20/22 twisted pair shielded cable
must be used, with capacitance between the wires less than 90 PF/m.
The maximum length of the pLAN network is 500 m with AWG22 twisted
pair shielded cable.
The boards should be connected in parallel with reference to plug-in
connector J5 (pRack Compact) or J11 (versions S, M, L).
J22
Important: follow the network polarity: RX/TX+ on one board must
be connected to RX/TX+ on the other boards; the same applies to RX/TX-.
The fi gure shows the diagram for more than one board connected in
a pLAN network; this is a typical application with more than one board
J7
connected inside the same electrical panel.
AWG 20/22
J11 pLAN
J10
J1 7
J2
J1
J24
Important: pLAN connections are possible in which more than one
board is powered by diff erent transformers; for further details see
pRack system general manual: +030220335.
3.7.1

Connecting the terminals

pRack pR300 uses PGD1 terminals, either built-in or external connected
via pLAN. Up to 2 external terminals can be connected, with pLAN
Tab. 3.k
addresses 31 and 32.
The connection can be made using 6-wire telephone cables (connector
J4 for Compact models or J10 for S, M, L) or shielded twisted pair cables
with 3-pin plug-in connectors (connector J5 for Compact models or J11
for S, M, L), as shown in the table
Cable type
Power supply distance
6-pin phone
10 m
(J10)
AWG24
200 m
AWG20/22
500 m
For further details on connecting the terminals, see the pRack system
general manual: +030220335.
Tab. 3.l
26
2
Size [mm
]
0,5
1,5
2,5
AWG 20/22
J1 5
J1 2
J1 3
J1 4
J11 pLAN
J10
4
3
2
1
J2 1
J2 5 BMS2
J2 6 FBus2
pR300
FieldBus card
B M S ca r d
J2
J3
J4
J1
J5
J24
Fig. 3.a
Power supply
Taken from pRack (150 mA)
Taken from pRack (150 mA)
Separate, via TCONN6J000
Current [A]
2 A
6 A
8 A
Tab. 3.m
J1 6
J1 7
J1 2
J22
J23 FBu
pR300
J1 9
J20
FieldBus card
J2
J3
J7
J6
Tab. 3.n

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