Installing The Power Supply - Rittal SK 3302.100 Assembly And Operating Instructions Manual

4 Assembly and connection
EN
CMC
1
I/O unit
2
RTT Adr.: 09
Master
X1
X2 X3
St. X2 X3 Bu.
3
Fig. 20: Connection example: Master-slave operation
Legend
1 Serial interface (Model No. SK 3124.200)
2 Serial interface cable
3 Master-slave bus cable (Model No. SK 3124.100)
RTT Rittal TopTherm cooling units
X1 Supply connection/door limit switch/alarms
X2
Adr.: 06
1
L2
L1 PE 1 2 3 4 5
X10 N
Fig. 21: Connection example: Door limit switch and master-slave operation
Legend
1 Master cooling unit
2 Slave cooling units
3 2-door enclosure with two door limit switches
4 Enclosure with door limit switch
14
RTT Adr.: 11 RTT
Slave Slave
X1 X1
X3 X2
X2
St. X2 St. X2
X2 X2
Bu. St.
X2 X2
Adr.: 11 Adr.: 12
2 2
L1 L2 L3 PE 1 2 3 4 5 L2
L1 PE 1 2 3 4 5
X10 X10 N
1 2
3 4
Adr.: 12
X3
X2 X2
Bu. St.
X2 Master-slave connection Sub-D, 9-pole
X3 Serial interface Sub-D, 9-pole
St. Sub-D connector, 9-pole
Bu. Sub-D jack, 9-pole
Adr. Address
X2
Adr.: 13
2
L1
L1 L2 L3 PE 1 2 3 4 5
X10 X10
3 4
4

4.6.4 Installing the power supply

• Complete the electrical installation by following
the wiring plan on the rear of the cooling unit
(see Fig. 1 on page 5, for key see page 19).
• If you would like the system messages from the
cooling unit to be evaluated via the system
message relay, you should also connect a suitable
low-voltage cable to connection clamps 3 – 5.
Rittal cooling unit assembly and operating instructions
X2 X2
Adr.: 14 Adr.: 15
2 2
L2 L3 PE 1 2 3 4 5 L1 L2 L3 PE 1 2 3 4 5
X10
5 6
3
RTT Adr.: 19
Slave
X1
X3
X2
X2
St.
X2
Bu.
X2
X10
Adr.: 16
2