Rockwell Automation 284 ArmorStart User Manual User Manual
Page 23
Product Overview
1-11
Dynamic Brake Resistor (Bulletin 284 only)
The IP67 Dynamic Brake Resistor plug and play design offers
simplicity in writing and installation. The factory installed option of
DB1 must be selected in order to have the quick disconnect
connectivity. The cable length of the IP67 Dynamic Brake Resistor is
available in two lengths, 0.5 meter and 1 meter. See Appendix G,
Accessories, for available IP67 Dynamic Brake Resistors.
Control Brake Contactor (Bulletin 284 only)
An internal contactor is used to switch the electromechanical motor
brake On/Off. The motor brake is powered from the control voltage
circuit. A customer accessible 3.0 A fuse is provided to protect the
brake cable. One 3-meter 3-pin cable for connection to the motor
brake is provided as standard when this option is selected.
Output Contactor (Bulletin 284 only)
An internal contactor will be sourced from control voltage to isolate
the load side of the Bulletin 284 ArmorStart Distributed Motor
Controller. When control power is applied, the output contactor is
closed, and when control power is removed, the output contact opens.
There is no switching element, such as a relay, in the system. If
control power is lost then the output contactor will open, since its coil
power is lost. A sequenced stop involving the output contactor cannot
be performed.
Shielded Motor Cable (Bulletin 284 only)
A 3 meter shielded 4-conductor cordset is provided instead of the 3
meter unshielded 4-conductor cordset. If the EMI Filter is selected, a
3 meter shielded 4-conductor cordset is provided as standard.
0…10V Analog Input (Bulletin 284 only)
The Bulletin 284 Distributed Motor Controller with Sensorless Vector
Control provides a 0…10V analog input. The 0…10V Analog Input
is a factory installed option that provides a 0…10V external
frequency command from the 0…10V or +/-10V analog input or
remote potentiometer. A 5-pin micro receptacle is provided for
connectivity for customer connection. A shielded 5-conductor cordset
or patch cord is recommended.