Operation
8825−1/A1
Winterthur Gas & Diesel Ltd.
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2.5 Alarms from E88 to the Alarm and Monitoring System
The control box E88 gives a digital output signal XS3463A to the alarm and
monitoring system (AMS) as follows:
D No alarm: The contact is closed.
D Alarm on: The contact is open.
The control box E88 activates an alarm when there is a minimum of one of the
conditions that follow:
D Manual ON mode when the engines is supplied with MDO
D Manual OFF mode when the engine is supplied with HFO
D There is an internal 24 VDC power supply failure in the control box E88.
D The temperature sensor TE3411C is disconnected, broken or out of range.
D In the control box E88, a minimum of one residual current protection device finds
a leakage current, which is equal to, or more than 300 mA (power supply output
for the heating cables)
D The control box E88 is not connected to the emergency switchboard
D The control box E88 is not connected to the main switchboard.
2.6 230 VAC Emergency Switchboard Supply to E88
The control box E88 is connected to the main and emergency switchboards. The
default 230 VAC supply is from the main switchboard.
If the main switchboard becomes defective, the emergency switchboard will supply
230 VAC to the control box E88. When the main switchboard becomes serviceable
again, the emergency switchboard will continue to supply 230 VAC. The control
box E88 sets to on the related yellow indication (see Fig. 4).
It is recommended that you set to off then on, the main switch in the control box E88.
This will make sure that the main switchboard supplies 230 VAC to E88.
2015-03
Electrical Trace Heating System
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