Donati DRH 1 Series Instructions For Use Manual Download

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MAN16MG0

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

3.5.1 Control devices

The control of the DRH wire rope hoist and related trolley is generally carried out with a

push- button panel

(being

part or not of the supply) which sends electric signals to a low voltage

control panel

to activate the related

movements.
These movements are activated by means of the following buttons on the push-button panel (fig 7):

•

ascent

and

descent

buttons to control the

lifting of the hoist

(fast and/or slow)

•

right

and

left

buttons to control the transit of the

trolley

(fast and/or slow).

The buttons for the functions

ascent

and

right

have a

black symbol on a white background

, while those for

descent

and

left

have a

white symbol on a black background

. They start the function when they are kept pressed

down and the controls of the auxiliary slow speeds, of lifting and of transit, can be activated with

separate buttons

or with two pushes, the first push for the command of the “slow” speed, the second push to command the “fast”
one. To allow the functioning of the hoist it is necessary to bring the button for the emergency stop, located on the
push-button panel, to a raised position for the gearing and then push the function button.
When the hoist is provided with a control panel, the push-button panel is of the pendant type and manoeuvrable by
the operator from the ground.
The hoist can be controlled also by remote control, the functionality of the buttons is unvaried with respect to that
of the push-button panel in pendant execution.
The control of the hoist can be carried out also with a fixed push-button panel (e.g. automatic cycles). In this case,
the installer must check that the control ensures the maximum possible safety with particular attention to the
visibility of the load.

The electric wire rope hoist and related trolley, according to contractual agreements, can be supplied

complete with

or without control devices and systems

(control panel with push-button panel).

3.5

Safety measures and instructions

When the wire rope hoist is supplied without control devices or systems, it is forbidden to

put it into service before it has been completed in conformity with the rules of the

Machines Directive 2006/42/CE.

STOP

ASCENT

LIFTING

TRAVELLING

DESCENT

RIGHT

LEFT

fig. 7

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

MAN16MG05

Different variants of the DRH rope hoist can be supplied (with or without a trolley, with one or two speeds) giving
the following configuration for the devices on the pushbutton control panel:

Position

descriptions of the functions

Start/stop button
Ascent button
Slow ascent button ( click 1)
Fast ascent button (click 2)
Descent button
Slow descent button (click 1)
Fast descent button (click 2)
Right translation button
Slow right translation button (click 1)
Fast right translation button (click 2)
Left translation button
Slow left translation button ( click 1)

Fast left translation button (2° click)

1
2

2A
2B

3A
3B

4A
4B

5A
5B

To start and stop use of the hoist
To lift the load and stop at the desired position
For lifting and micrometric positioning
For large vertical ascents
For lowering the load and stopping at the desired position
To start the descent and for micrometric positioning
For large vertical descents
For horizontal movement of the trolley to the right
To start translation to the right and for micrometric positioning along side another object
For large movements to the right
For horizontal movement of the trolley to the left
To start translation to the right and for micrometric positioning along side another object
For large movements to the left

Utilisation of the functions

Summary of functions of the push button panel in relation to the configuration of the hoist and/or trolley

Set-down DRH rope hoist

Single speed hoist

Two speed hoist

Single speed hoist

Single speed trolley

Two speed hoist

Single speed trolley

Single speed hoist

Two speed trolley

Two speed hoist