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Figure 5-1 Safety equipment test rod detection
ø 14 mm or ø 30 mm test rod
Table 5-1 Summary of inspection and test methods
Inspect and test
Object detection and
machine reaction
Operation of the machine
control circuitry
Output relay
Enclosure
Electrical wiring
Cleaning
5.2.
Control unit status indicators
POWER APPLIED TO MACHINE CONTROL SYSTEM
Before intervention, turn off and disconnect power from FF-LS Series safety light curtain and machine.
Failure to comply with these instructions could result in death or serious injury.
The control unit has seven status indicator LEDs (see below). The green status LEDs 1, 2 and 3 are always illuminated if
the supply voltage is present. The yellow status LEDs 4 and 6, the red status LEDs 5 and 7 and a buzzer (acoustic signal)
are used to determine the operational status of the safety equipment. This buzzer (acoustic signal) can be switched on or off
using the buzzer switch located on the control unit printed circuit board (see Figure 5-2).
35
Method
Insert a 30 mm or 14 mm diameter test rod into the
light curtain sensing field and ensure the machine
stops.
Test function generated by the machine (closing an
external normally open contact located in the "test
loop" of the FF-LS control unit)
Count the machines cycles and evaluate the
number of operations.
Visually inspect enclosure to ensure the control unit
is closed and locked. The key should be kept by an
appointed person.
Visually inspect the safety light curtain and the
electrical wiring to ensure that they are in
serviceable condition.
Use a clean, soft, dry cloth for dust removal.
Use a clean, soft cloth with soapy water for grease
removal.
Wipe without rubbing (rubbing causes streaks and
static electricity that attracts dust).
Products used to clean windows may be used.
Never use solvents like petrol, white spirit,
trichlorœthane, trichlorœtylene, or acetone.
Frequency
Daily, at each power up, and after each
intervention (or maintenance)
performed on the protective safety
equipment
Each time the machine is used or as
part of each cycle
1 000 000 operations (1,5 A/220 Vac,
1,5 A / 24 Vdc) or every 3 years if
protective RC elements are mounted
Based on environment and needs
Based on environment and needs
Based on environment and needs
107022-16 EN FR26 GLO 301 Printed in Germany
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