VB 230/400-25
9
9.
Potentiometers
10. Options
For special applications there are various options in order to extend the functionality of Versi-
Brake-devices.
The following is available:
Wide-voltage range 200-575V (480V) - Option „B“
Motor PTC monitoring - Option „P“
Star-delta starting control - Option „D“
Standstill signaling relay - Option „S“
10.1 Option „B“ – Wide-voltage-range-capable
With this option it is possible to use the VersiBrake–devices within a mains voltage range from
200 to 575V (UL-certificated devices: 200...480V).
This requires a AC-control voltage that is to be connected to the terminals X1, X2. The height of
the control voltage is on the nameplate an on the terminals (24VAC / 230VAC).
Note!
In the case of standard devices these options are not available, even if the
terminals are there.
The required options have to be expressly ordered.
10.2 Option „P“ - Motor PTC monitoring
This option enables a simple monitoring of the motor temperatur. It is possible to evaluate up to
6PTC-thermistors or thermostats (normally closed contact) connected in series.
The contact X7, X8 (alarm) opens when the cut-out temperature value is reached. The contact
remains open until the temperature falls below this value again, at least, however, for a period of
240s.
This monitoring function is able to detect overtemperatures and open circuits, but no short circuits
of the PTC thermistors or thermostats.
Caution: Danger to life through electric shock!
The terminals X14 and X15 carry mains potential; when laying the
connecting leads make sure to protect them against inadvertent contact.
10.3 Option „D“ – Star-delta starting
If star-delta starting is requested, it is possible with this option to control the power contactors.
In this case, a normally closed contact of the mains contactor is connected to X3, X4 (start) (see
connection diagram with options).
„I“
Adjusting the braking current.
