Rockwell Automation FlexPak Plus NRG DC Drive User Manual
Page 41
40
DANGER
15>
A.)
AN EXTERNAL, U/L LISTED, FUSED DISCONNECT OR CIRCUIT BREAKER IS REQUIRED
TO PROVIDE NEC OR CEC DISCONNECT AND OVERCURRENT PROTECTION.
B.)
MAXIMUM PERMISSIBLE AVAILABLE SYMMETRICAL RMS SHORT CIRCUIT POWER SUPPLY
CAPACITY: 5000A.
16>
When installing replacement power cubes, apply a very thin, uniform thickness film of DOW
#111 to mounting surface. Film is too thick if it squeezes out around power cube after pow-
er cube is torqued down. Start the mounting screws carefully into existing threads, and
then torque to 25 to 30 in-lbs.
17>
Set Auto Min. Speed with input on minimum, then set Auto Maximum Speed with input at maxi-
mum. Motor must not exceed its speed or voltage rating.
18>
Jumper for various process controllers.
19>
Remove jumper if Auto/Manual switch is used.
20>
Clip resistor (26.7K) and jumper (J2) when optional Dancer Position Adjust Pot. is
installed.
21>
Not associated with 232 Drive Thermostat circuit on Sh. 2. 232 is open in auto mode (“A”
not energized.)
22>
Numbers parenthesized are shown when different from original identification marking on kit.
23>
Cut jumpers (J1 & J2) if Remote Operator is installed.
DANGER
24>
EACH DRIVE MUST BE GROUNDED ACCORDING TO CODE REQUIREMENTS, USING THE DRIVE
“GND,” TERMINAL.
25>
The nominal Overload Threshold is 111% of rated current. With circuit tolerances, the
threshold can vary from 103% to 119%. The Overload Trip time is nominally 60 seconds with a
load current of 150% of rated current.
26>
The IET (Instantaneous Electronic Trip) threshold is set for a peak load current of 300%.
27>
For proper hardware and torque spec. see replacement parts table (special connector hard-
ware) sheet 8.
WARNING
28>
DRIVES ARE SHIPPED WITH 57 (OV) FLOATING, DEPENDING ON THE APPLICATION, 57 MAY
BE LEFT FLOATING, OR TIED TO EARTH GROUND. IF LEFT FLOATING, THE REGULATOR
CIRCUITS MAY RISE TO A HIGH POTENTIAL.
29>
If using an AC Tach, remove J1 & J2.
30>
Contact Rating: 125 VAC, 3 AMPS.
31>
Contact must be capable of breaking a 0.5 AMP, inductive load.
W/D 30070-1 (Sheet 11 of 13)
Figure 5.17B - Technical Notes