Connection terminals for connecting the resistor with the integrated dynamic
brake terminals in the drive.
Thermal sensor of the resistor. The status will change according to the
temperature.
- For normal temperature (ambient): Normally closed (NC) (TH1 – TH2
closed contact).
- In case of resistor over temperature: Normally open (NO) (TH1 – TH2
open contact).
Connect this signal to a terminal of one digital input of the drive configured
as ‘external fault’.
[1]
Terminals TH1 and TH2 will be available when the used braking resistor is equipped with thermal sensor.
Note: It is recommended to use braking resistors equipped with thermal sensors. Connect the thermal sensor
to one digital input of the drive and configure this input as ‘external fault’.
Connection Drawing
The following figure shows the connection between the optional external resistor for the built-in dynamic
brake and the drive.
Connection drawing of the resistor for the dynamic brake in equipment of Frames 1 and 2
Notes:
• The braking resistor should be non-inductive.
• To connect the sensor to the drive it is recommended to use shielded cable.
• The maximum cable length between the drive and the external braking resistor is 20m. For other
configurations, contact Power Electronics.
CAUTION
Do not touch the braking resistor during drive operation. It can reach T > 150ºC. If you omit this
precaution there is a high risk of burns and / or abrasion.
To Next Page
Loading...