2 hazard and risk analysis, 2hazard and risk analysis – Beijer Electronics M70 EN User Manual
Page 8
Hazard and Risk Analysis
8
Beijer Electronics, MAEN843A
2
Hazard and Risk Analysis
For manual control of machines in special operating modes, where safety de-
pends on the timely reaction of the operating staff, it is absolutely essential that
the operator can overlook the operating area.
The handheld operator panel has the advantage that the operator can get very
close to the control panel. At the same time, the danger of misuse increases with
mobility since, in remote locations where it is not possible to observe the oper-
ating area, machine movements can also be set in motion with the handheld op-
erator panel, knowingly or unknowingly. The machine operator has to find the
right compromise between necessary flexibility and a reasonable limitation of
the working range when selecting the cable length for the handheld operator
panel.
If the machine or equipment is operated with the handheld operator panel, care
must be taken at this time to ensure that operation can only be controlled by the
handheld panel and cannot be operated from any other point on the equipment.
The hazard zone may only be entered by the person who is operating the hand-
held panel. If it should be necessary for more than one person to work in the
hazard zone at the same time, each person present requires an enabling device
and machinery movement may only be allowed after all the enabling devices
have been activated.
For the right projecting of the handheld operator panel, a hazard and risk anal-
ysis must be carried out. In addition to chapter
, the follow-
ing safety aspects is to be considered:
– Which is the correct cable length for limitation of work space?
– Is an emergency stop button necessary and permissible?
– Is the safety category for the application sufficient?
The handheld operator panel may be operated in faultless condition only and
the operating instructions must be observed.
Moving around with a cable connected device also requires consideration. To
avoid damage to the cable or the cable sheath, the cable must not be squeezed or
laid over sharp edges.
.