5 Monitoring, warning, error, repair
page 41
ELC X-Series-V1.5-06.18-GB
subject to technical alterations
Bit 0:
The {Lamp Voltage Low}-bit is set if the lamp voltage is lower than the
threshold voltage given in chapter 6. A possible reason is a strong lamp
cooling especially in dimming operation. This could cause a long run up time
to regain the nominal power.
Please consider that the ELC cannot distinguish lamps of different nominal
voltages. If the ELC is used on purpose to operate a lamp with a lower nominal
voltage the bit will be set although full lamp voltage is reached.
This bit will be reset if the lamp voltage exceeds the threshold voltage.
Bit 1:
During run-up the lamp power normally increases to the desired lamp power
(Register [Power Set Value]). The {Run Up Long}-bit is set, if 95% of the
required lamp power are not reached within 3 min. Possible reasons are an
incorrect lamp type or excessive cooling of the lamp.
Reset occurs as soon as the {Start Lamp}-bit in register [Lamp Control] is
set to 0 (the lamp being thus actively shut down by the operator via the BUS
output data).
Bit 4:
The {Safety Relay Open} bit is set if the safety relay is not closed (e.g. on
emergency shutdown). There are two different cases:
If in register [Lamp Control] {Start Lamp} bit is 0, the {Safety Relay Open}
bit is automatically reset as soon as the safety relay is closed.
During lamp operation ({Start Lamp}=1 in [Lamp Control]) the {Safety
Relay Open} bit remains set and the lamp will be shut down by the ELC. In
this case {Safety Relay Open} will only be reset if {Start Lamp} in [Lamp
Control] is reset and the safety relay has been closed.
Bit 5:
If the ELC cannot ignite the lamp the {Lamp Ignition Failed} bit will be set and
remains in this status as long as {Start Lamp}=1 in [Lamp Control]. The {Lamp
Ignition Failed} bit is reset as soon as {Start Lamp} in [Lamp Control] is reset.
Bit 7:
The {Init Signal Ok} bit reflects the status of the Init-Signal-Pin X806.3 of the
initialisation signal (see paragraph 3.3.2).
{Init Signal Ok}=1 means 24 V on X806.3, the lamp may be ignited and
operated normally.
{Init Signal Ok}=0 means 0 V on X806.3, the lamp cannot be operated.
To render the ELC operational again in case {Init Signal Ok}=0 the
initialisation signal on X806.3 has to be 24V and the start signal {Start Lamp}
has to be reset.
Bit 2, Bit 3 und Bit 6: {n/a} bits (not available) are reserved for future applications.