External Braking Resistors - Parker AC890 Product Manual

Associated Equipment

External Braking Resistors

Use the calculation on page 5-4 to help you select suitable resistors.
Main Points
 The 890SD unit must be fitted with external braking resistors if braking is required. Use the DSE
890 Configuration Tool to set the following parameters in the 890SD unit:
IMPORTANT The continuous rating quoted is not to be exceeded under repetitive loading.
5-3
Page
Set the INT DB RESISTOR parameter (PREF 31.75 in the DYNAMIC BRAKING function block) to
FALSE. Also enter information about the external resistor being used in to this function block.
Enable the "Brake Resistor" and "Brake Switch" trips in the TRIPS STATUS function block
(DISABLED WORD 1 parameter).
890SD (Standalone) Drive: Frame G, H & J