Hohner ECONOMY 25/40, Operating Instructions Manual

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Installation and commissioning of the machine
Hohner Maschinenbau GmbH ECONOMY 25/40 02/2016 17
3.4 Electrical connection
Unless a different motor is ordered, the ECONOMY 25/40 is supplied with a threephase gear motor
for connection to 230/400 volt, 3 phase, 50 Hz. Motors for other current types, voltages, frequencies
and motors with tropical protection are available on request (at an extra charge).
The type plate specifies for which mains voltage and mains frequency the machine has been
designed.
- When installing the machine, the local connection regulations must be observed. The supply line
to the machine must be appropriately protected. In accordance with the valid VDE regulations, the
protective conductor is yellow-green.
- Fig. 3.3 -
Special attention must be paid to the direction of rotation of the motor shaft (visi-
ble on the fan blade), marked by a arrow -3-. The direction of rotation is changed
by swapping 2 phases of the mains supply line.
3.5 Motor protective relay
- Fig. 3.2 -
The motor protective relay is triggered upon overload of the motor and switches off the power sup-
ply of the motor. This is indicated on the trigger display window -2-.
• Yellow display, invisible: relay not triggered
• Yellow display, visible: relay triggered
- Should the motor protective relay have triggered, the machine must first be switched off with the
ON/EMERGENCY-STOP button. Then determine and eliminate the cause.
- Once the cause has been eliminated, the motor protective relay can be reset by pressing the
reset key -1-, - Fig. 3.2 -.
While doing so, ensure that all protective systems are installed on the machine and all tools
have been removed from the machine.
3.6 Turning the machine by hand
- Fig. 3.3 -
In the event of faults, for setting and functional testing, the machine can be turned by hand. Use
hexagon key SW 5 -4- from the tool set for this purpose.
Insert hexagon key -4- into the hexagon mounting (on the back of the drive motor -5- in the fan
shaft) like a crank, move fan lever -7- for brake in the direction of the arrow and turn fan shaft in the
direction of the arrow -3-.
Before switching on the machine, make sure that all protective devices are fit-
ted to the machine and all tools have been removed from the machine!
Voltage
Danger of electrical shock!
 Only qualified skilled workers may carry out work in the vicinity of the mains
power supply.
Quick stroke movements of the stitching heads!
Danger of crushing!
 Before carrying out maintenance or repairs, take care that the power supply is switched off
and prevented from being switched on again accidentally.
 Never operate the system without properly mounted finger guard.