GB-6
▷
Use plastic cable glands/conduit couplings with
multiple cable grommet. These can be detached
with the plug-in connection terminals.
▷ Do not supply voltage to the outputs.
▷
A short-circuit on the outputs causes one of the
replaceable fuses to trip.
▷ Do not set the remote reset so that it operates
(automatically) in cycles.
▷ Wire the safety circuit inputs via contacts (relay
contacts) only.
▷
The limiters in the safety interlock (e.g. safety
temperature limiter, emergency stop) must iso-
late terminal35, as well as the optional safety-
relevant inputs, e.g. at terminals 36 to 41, if these
are parameterized, from the voltage supply. If the
safety interlock is interrupted, the display shows
a blinking
51
as a warning signal and all of the
BCU’s gas valve outputs are disconnected from
the electrical power supply.
▷
Connected control elements must be equipped
with protective circuits in accordance with the
manufacturer’s instructions. The protective circuit
prevents high voltage peaks which can cause
malfunctioning of the BCU.
▷ Install the ignition cable in the BCU in the desig-
nated cable duct1 and feed it out of the BCU on
the shortest possible route via the cable gland.
2
1
▷
Observe the maximum duty cycle for the ignition
transformer (see manufacturer’s instructions).
Adjust the minimum pause timet
BP
(param-
eterA062) correspondingly, if required.
▷
All functions of the inputs at terminals 1 to 7
and 35to41, as well as of contacts 80to82,
85to87, 90to92 and 95to97, depend on
parameters I050toI074.
1 Disconnect the system from the electrical power
supply.
Before wiring, ensure that the yellow parameter
chip card has been inserted in the BCU.
▷
Screw terminals or spring force terminals are
available for the BCU:
Screw terminals, Order No. 74924876,
spring force terminals, Order No. 74924877.
3 Wire as shown on the connection diagram, see
from page7 (Connection diagram).
4 After wiring, close the housing cover again and
tighten the cover screws to 2.4Nm.
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