Heavy Oil - Direct Start (X6-01 Pin 3) - Siemens LMV50 Series Manual

Building Technologies

4.1.5.15 Heavy oil - direct start (X6-01 pin 3)

The input is used for connecting a heavy oil direct start signal with which circulation
phase 38 with HO, or phase 44 with HOgp, can be shortened.
In the circulation phase, the waiting time for the signal is a maximum of 45 seconds. If
the signal is not delivered, home run is triggered, followed by ↑ repetition. The input is
only active when firing on heavy oil (HO or HOgp).
The input can be deactivated.
Input X6-01 pin 3 can be configured as follows:
deactivated Deactivate input
activated 38/44 Heavy oil direct start active in phase 38 for HO or in phase 44 for
HOgp. The input is only supervised in phases 38 or 44. A signal in
these phases leads to the heavy oil direct start, i.e. switch to phase
40 or 50. A missing signal leads to lockout within 45 seconds.
38/44...62 Heavy oil direct start active in phase 38 for HO or phase 44 for HOgp
and in phase 62. The input is also supervised in operating phases
50...62; a failure leads to a safety shutdown.
act 21...62 Heavy oil direct start active in phase 21 to 62. In phase 21 (start
release), this enables the system to wait for the HeavyOilDirStart
signal prior to starting up. The maximum waiting time is set via
MaxTmeStartRel. The input is also supervised in operating phases
50...62; a failure leads to a safety shutdown.
HTempGuard External safety limit thermostat for high-temperature supervision
(>750 °C), refer to chapter High-temperature supervision.
ext.FlameGd External flame safeguard, refer to chapter External flame supervision
Parameter HeavyOilDirStart (deactivated / activated 38/44 / 38/44...62
/ act 21...62 / HTempGuard / ext.FlameGd)
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CC1P7550en
22.05.2018