FUNKEN FRv 075, Руководство пользователя

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8
in the control unit. The decision of whether the cable shield
must be applied on both sides can only be made on site
(e.g. due to very significant interference). In this case, the
applicable regulations must be complied with.
If on-site control units are employed, it is not necessary to
route a shielded cable as the thermal contact can be used for
230-V control voltage (up to 4 A).
After routing the cables, all cable inlets must be fitted with
splashproof seals.
5.3 Thermal contact/PTC thermistor for motor
protection
The client must ensure that the motor is equipped with an
interlock shutdown that stops the motor if the highest per-
missible winding temperature is exceeded. This prevents the
motor from restarting after a malfunction.
5.4 Fluctuating power supply
DIN EN 60034-1 specifies a voltage tolerance of +/- 5%
(range A) for motors.
DIN IEC 60038 specifies a tolerance of +/- 10% for the mains
voltages 230 V, 400 V and 690 V.
5.5 Connection diagrams
6 OPERATION
The control unit regulates normal operation of the fan
(switching on and off). During maintenance and inspection
tasks, either the repair switch is used to switch the device on
and off or the connection cable in the terminal box is discon-
nected and isolated.
Check that the fan is working correctly on a daily basis, giving
particular attention to smooth running and noise generation.
6.1 Decommissioning
Switch the fan off using the control unit.
The radial fan itself either has a repair switch or a terminal
box. The fan is deactivated by setting the repair switch to the
“0” position or by disconnecting the motor connection cable
in the terminal box.
MORTAL DANGER FROM ELECTRICAL CURRENT!
If disconnecting in the terminal box, the power
supply must be switched off via the control unit
and secured against reactivation before disconnecting the
connecting cable of the drive motor.
To prevent the fan from being unintentionally reactivated via
the control unit,
•
set the repair switch to “0” or
•
disconnect and isolate the motor cable in the terminal box.
Subsequently, close the terminal box.
Both methods disconnect the motor unit from the electrical
connection.
Three-phase AC
(3 x 400 V)
Squirrel cage motor
3 x 400 Y
Three-phase AC
(3 x 230 V)
Squirrel cage motor
3 x 230 ∆
Single-phase AC
(1 x 230 V)
*
Squirrel cage motor
1 x 230
* with operating capacitor
u1
v1
w1
w2
u2
v2
u1
v1
w1
w2
u2
v2
u1
v1
w1
w2
u2
v2
L
N