Rockwell Automation Publication KNX-TD005A-EN-P - October 2021
141
Common Accessories
This table lists internal (built-in) and external precharge capacitance for the 8720MC-RPS units.
Refer to 8720MC Regenerative Power Supply User Manual, publication
, for additional product specifications.
Dimensions - 8720MC Regenerative Power Supplies
Catalog Number 8720MC-RPS065
8720MC-RPS Precharge Specifications
Attribute
8720MC-RPS065
8720MC-RPS190
Series #
Series B
Series #
Series B
Capacitance of built-in capacitor
1900
F
1960
7600
F
5600
F
Built-in resistor (value/wattage)
7000
F (22
/120 W)
25,000
F (10
/400 W)
External resistor (min resistance value) Connect to PR1 and PR2
110,000
F (20
)
165,000
F (10
)
External circuit (min resistance value)
220,000
F (4.7
)
495,000
F (1.5
)
IMPORTANT
Large levels of load capacitance can require modification of the 8720MC-RPS internal precharge/discharge circuit. Refer to
the wiring instructions in the 8720MC Regenerative Power Supply User Manual, publication
, for information on
how to determine the appropriate precharge/discharge resistance power value (ohms/watt) to accommodate the
capacitance of your system.
179
(7.0)
127
(5.0)
9.0
(0.35)
10.0
(0.39)
30.0
(1.2)
333
(13.1)
395
(15.6)
127
(5.0)
Ø 9.0
(0.35)
Ø 18.0
(0.71)
9.0
(0.35)
10.0
(0.39)
30.0
(1.2)
318
(12.2)
R E G E NE R AT IV E P OWE R S UP P LY
REGENERATIVE POWER SUPPLY
8720
8720
MC
MC
RST
PRG
ENT
READY
READY
FAULT
FAULT
PROGRAM
PROGRAM
kW
kW
V
A
Dimensions are in mm (in.)
