Preheat Function; Deep Discharge Protection; Enable Signal - probst VM-301-KJ-GREENLINE Operating Instructions Manual

The battery voltages may vary slightly during the discharging process. This is not yet an
indication that the state of charge of the cells varies greatly.

6.2.5 Preheat function

Optional function.
The preheat function is only active when the DRIVE or CHARGE mode is active and the battery
temperature is below a certain temperature threshold. The temperature thresholds (start & end
preheating) can be taken from the parameter list.

6.2.6 Deep discharge protection

Since the electronics are supplied by the battery in the active state, undercharging of the system
must be prevented during prolonged activation and when the state of charge is low.
A monitoring electronics on the EMS switches off the system supply in case of low battery
voltage. The deep discharge protection can be bridged either by the integrated button or by a
separate termination plug, provided that the individual cell voltages are above the minimum cell
voltage.
It is therefore recommended to recharge the system as soon as possible when the
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deep discharge protection is active.
The charger must be connected and active before the deep discharge protection is
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bridged.
If charging is not possible when the deep discharge protection is active and/or a
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permanent acoustic warning signal sounds, the system must be switched off and
returned to the manufacturer.
As soon as the system has been recharged above a certain threshold, the system is able to
supply itself independently again.

6.2.7 Enable signal

The system has an insulated NO-closer which gives the vehicle/charger a drive/charge
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permit.
The contact closes as soon as the battery system allows a power drain
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The contact opens when the system is switched off, in the initialization phase or when
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the system detects a fatal error.
In the event of a fatal fault, the release signal is removed about three seconds before the
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circuit-breakers open.
Technical data from the upper sections must be observed.
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6.3 SYSTEM BEHAVIOUR
Each detectable fault in the system is divided into three fault thresholds:
Warning,
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Standard errors and
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Fatal mistake.
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As soon as one of the errors is present, the corresponding message is transmitted via the CAN
interface. The three error thresholds cause the battery to react as follows:
WARNING
IN CASE OF ERROR
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