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Instruction manual version 1 for software version 4.04
INSTRUCTION MANUAL FOR DAAB EP104 CONTROL BOARD
• External protection units
EP104 has a function to test external protection units. The test is run before every operation to ensure there are no problems
with the safety edge unit. Only one safety edge unit with external testing can be connected to each safety edge input. To
satisfy the safety requirements, the connected unit must have at least performance level C (PLc) in "EN ISO 13849-1 Safety
of machinery - Safety-related parts of control systems". If the connected unit is a category 2 device, its test input must be
connected to the test output of the EP104 (terminal 38). Note that the test output of the EP104 is connected to GND, +24V
or set to high impedance (open), which can permanently damage units that are not designed to handle this. If a number of
units are used, they are all connected to the common output signals for testing. Check with the unit manufacturer that this is
permitted.
The EP104 is supplied configured to use external testing of a safety edge with photocell. If you have a safety edge and/or
photocells that do not support external testing, change the following settings in order to continue commissioning. If there are
no external units, set channel C102 to 0. There is no need to disable channels C113, C123, C133 and C343 because C102
overrides them.
!
Note that the factory setting of channel C102 is 0. If you want to test external protection units, set C102 to 1.
• Disabling external testing of S.E1
To disable external testing of S.E1, set channel C113 to 0.
• Disabling external testing of S.E2
To disable external testing of S.E2, set channel C123 to 0.
• Disabling external testing of S.E3
To disable external testing of S.E3, set channel C133 to 0.
• Disabling external testing of photocells
To disable external testing of PHOTO, set channel C143 to 0.
Settings for external protection
Before changing the other settings, you will need the following information about the unit to be tested.
•
Check the power supply the unit needs.
•
Check the required current – the maximum current for the 24VDC of the EP104 is 300mA, so an external transformer
may be needed depending on what other equipment is connected.
•
Check whether the external unit has an internal resistor at the output. If not, fit a 8.2kohm 0.5W resistor to the
output. FAAC recommends that this output is short circuited when the protection is activated.
•
Check the active and inactive levels of the test input on the unit. Set C102 to the right polarity.
•
Check that the resistance detected in EP104 for the safety edge input to which the external unit is connected is
correct.
•
Check the resistance of the output of the unit when the test input is activated. Enter this in C103.
C102, controls how the test output works when external units are used with the test input according to the channel
reference.
C103, indicates the resistance the safety edge inputs must have when the test signal is active. For the photocell the voltage
level is low and cannot be adjusted. The procedure is the same for all inputs.
!
Make sure the system is serviced twice a year, even if external protection with daily function testing. Note that the test
input only tests the external unit – not the safety edge/photocell connected to the unit.
Summary of Contents for DAAB EP104
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