Rockwell Automation 1606-XLSBUFFER48 Power Supply Reference Manual - Manual (Page 7)

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM027A-EN-P — April 2014 7
Bulletin 1606 Switched Mode Power Supplies
10. Operating Diagram
Fig. 10-1 Operating diagram Fig. 10-2 Signals schematic
Ready
t
Active
t
Optocoupler high ohmic
Optocoupler high ohmic
Optocoupler low ohmic
Optocoupler
low ohmic
V
Mains
t
V
Buffer
Capacitor
t
V
out
t
Charging Mode
LED
t
Buffer Mode
Hold-up Time Power Supply
Standby
Mode
10Hz 1.25Hz
8 Ready
7 Active
6 +
5,1V
3mA
9 Inhibit
11. Active and Ready Signals, Inhibit Input
Active signal (Pin 7) low ohmic while buffer capacitors are discharging
Signal voltage max. 60Vdc
Signal current max. 6mA
Voltage drop across opto-coupler typ 1.2V / 3.3V at 1mA / 5mA, while opto-coupler is low ohmic
Leakage current max. 50μA while opto-coupler is high ohmic
Isolation nom. 500Vac signal port to power port
Ready signal (Pin 8) low ohmic when buffer is fully charged
Signal voltage max. 60Vdc
Signal current max. 6mA
Voltage drop across opto-coupler typ 1.2V / 3.3V at 1mA / 5mA, while opto-coupler is low ohmic
Leakage current max. 50μA while opto-coupler is high ohmic
Isolation nom. 500Vac signal port to power port
Inhibit input (Pin 9) “High” input signal initiates unit shutdown and buffer discharge
Signal voltage max. 60Vdc
Signal current max. 4mA current limited
Shut-down threshold min. 6Vdc unit is in shut-down mode above this threshold level.
max. 10Vdc
Isolation nom. 500Vac signal port to power port
Wiring diagrams can be found in section 20.