Operating Instructions
750 W 27 V pickup
CQF 04/2 + Interface M12
BAL9100-0145a-EN
www.conductix.com
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Page 29 of 40
8.5
Tips for operating the interface
The signals available via the interface (M12 connector) are described below. Additional information about the information states and
the diagnosis can be found in chapter 10:
Error relay (contacts 3 – 6)
The error relay closes when there is a primary field sufficient for the operation of the basic functions of the device and no faults
are present. However, this is no guarantee that the full output power is available (see also chapter 7.5). The error relay opens
when there is a error or a track is switched off.
Alert relay (contacts 3 – 5)
Is normally opened. It closes upon approach of critical operating conditions (e.g. temperature, overload) and allows the vehicle
controller to respond appropriately and avoid automatic shutdown, which could, for example, cause the vehicle to stop in a
critical area or critical operating condition. In conjunction with the other relay outputs, conclusions can also be drawn about the
pilot contact functions (see chapter 8.5).
Status relay (contacts 3 – 7)
Is normally opened. It closes when the power output has been activated (enable) and the device is ready for operation. However,
the status of the relay does not guarantee the level of the output voltage. For example, in the case of an overload, the output
voltage may be below the nominal value.
8.6
Hiccup mode
If the output voltage falls below 12 V or if there is a heavy overload (depending on the position – see chapter 8.3) or in the event of
a short-circuit in the output, the device continues to supply output current for a few 100 ms. Thereafter, the output is turned off for
about 500 ms before automatically restarting. This cycle is called the hiccup mode and repeats as long as the overload exists. As
soon as the overload situation is resolved, the device will operate normally again.
The following diagram shows the typical behavior of the output voltage over the output current in nominal position. The maximum
available current actually depends on the position of the device over the track line; see also chapter 8.3.
