11
The external motor´s rated current is set on the thermal
relay's potentiometer. If the external motor is overload-
ed, the thermal relay will switch off and must be recon-
nected after the fault has been investigated. Kongskilde
recommends that the blue RESET button be set to
position M (manual). If the button is placed in position A
(automatic), the thermal relay will reconnect automati-
cally and it is therefore not possible to monitor when
the switch-off takes place.
The TEST button is operated with a screwdriver at
regular intervals, eg. every six months. After switching
off, reconnect with the blue RESET button. If the relay
does not trip, it is defective and must be replaced.
The switch on the cover of the external motor control is
a safety switch that must always be switched off before
repair and maintenance. The safety switch must be
locked so that the external motor, on for example a cut-
ter, cannot be started by mistake.
All equipment must be connected to terminal block X30
in the blower side, and the connected wires must be
relieved in the blower bottom frame, to the right of the
power supply.
The equipment could for example be:
•
Signal transmitters for the different operating points
of the blower
•
Equipment for error message of the operating
mode of the blower
+24 VDC
Digital out 2
0 VDC
L1 L2 L3
M
~
3
L1 L2 L3
~
21NC
C 96