FRIEDHELM LOH Rittal 3138.000, Руководство по сборке и эксплуатации

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Rittal roof-mounted fan 9
5 Performing the electrical installation
EN
Fig. 2: Connection diagrams

Select the conductor cross-section according to the
pre-fuse (0.5–4 mm² single-wire, 0.5–2.5 mm² fine-
wire).
A smaller pilot wire may be selected (min. 0.34 mm²).
Fig. 3: Connector and strain relief
Key
1 Strain relief

Connect the connector to the roof-mounted fan from
below.
5.2 Installing the pilot wire
To control the EC roof-mounted fans via an external
control unit (e.g. 3235.440), types 3140.5xx have addi-
tional connections for the pilot wire.

Release and remove the jumper between the "+10 V"
and "0 – 10 V/PWM" (terminals 1 and 2) connections.

Use a screwdriver with a 3.5 x 0.5 mm blade.

Open the terminal with the screwdriver and insert the
connection cable as shown in the connection dia-
gram.

Remove the screwdriver.
Connection Pin Function/assignment
L Power supply
N Neutral conductor
PE PE conductor
+10 V 1 Voltage output 10 V max. 1.1 A,
galvanically isolated, not short
circuit-protected
0…10 V/PWM 2 Control input 0…10 V or PWM,
galvanically isolated, impedance
100 kΩ
GND 3 GND connection of the control
interface
Speed 4 Speed output Open Collector, 1
pulse per revolution, galvanically
isolated
Tab. 3: Connection designations
Note:
In accordance with NFPA 70 (NEC), only
copper conductors must be used to connect
the supply cable to the mains connector.
Note:
To operate without a pilot wire, the jumper
should be left in the connection terminal. The
unit will then be operated at maximum
speed.