4 Installation and commisioning
4 Installation and commisioning
4.1 Setting the switching threshold
The brake chopper is equipped with two rotary switches. With the combination of numbers from both rotary
switches you can set the operating votlage of your application.
The combination of numbers is formed using rotary switches S1 and S2, where S1 is multiplied with 1 and
S2 is multiplied with 10. Values under 12 and over 72 are registered by the brake chopper as an error.
S2 S1
NOTICE
The votlage threshold, above which the brake chopper is activated and shall limit the voltage, is 2
V
higher than the operating voltage set.
Example
Switch S2 is set to the value "5", switch S1 to the value "2"; the result is the value "52"" and
the switching threshold is 54
V.
TIP
The switches are set to "90" in delivery state. The brake chopper signals an error at power on, until
you have set an appropriate value and reset the brake chopper.
The brake chopper gets deactivated as soon as the incoming voltage is again lower than the threshold, with
a hysteresis of 0.837 V (+/- 20%).
t
U
Switching
threshold
BC inactive
BC inactive
BC active
Hysteresis
Version: 1.2.0
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