Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 34)

INSTALLATION AND WIRING
FlexPak 3000 49’1340 e 3-10
3.8 Wire the Drive
3.8.1 Ground the Drive and Enclosure, the Motor and the Operator's Control Station
(Refer to page 18, Recommended Lugs for Grounding FlexPak Drives in UL / cUL Version )
1. Run a suitable equipment grounding conductor unbroken from either drive ground point
(terminal PE or ground stud) to the plant ground (grounding electrode).
2. Connect a suitable grounding conductor from each conduit to this drive ground point. A ring
lug is recommended at the ground point.
3. Connect a suitable equipment grounding conductor to the motor frame, the transformer
enclosure if used, and the drive enclosure. Run this conductor unbroken to the grounding
electrode.
4. Connect the PE (green/yellow) wire brought in with the incoming AC power line to the drive
ground point. Tighten chassis ground connections.
3.8.2 Wire AC-Power to the Drive
WARNING
The drive requires a 3-phase power source of 200 - 500 (300 - 575/690 V), 50/60 Hz (see 2.2.2).
If the correct voltage is not available, a transformer must be installed between power source and
drive. Do not connect the drive to a power source with available short circuit capacity in excess of the
max. symmetrical fault current. Failure to observe these precautions could result in bodily injury.
1. Size the AC line supply conductors for the specific drive rating and according to all
applicable standards.
2. Connect the AC line supply via disconnect (if used) and line reactor or matched transformer
to the terminal strips or bus bars at the top of the Converter or to the disconnect.
3.8.3 Wire the DC-Motor to the Drive
1. Size the motor armature circuit conductors for the specific drive rating (see Table 2-3) and
according to applicable standards. Use only copper wire rated 60/70 ° C or higher.
2. Locate the DC-motor armature and field supply leads on the drive.
3. Connect the DC-motor armature leads and the shunt field supply leads to the drive.
3.8.3.1 Motor Overload Protection
A software (internal) static overload is provided.
In addition to the software (internal) overload function, a DC-motor thermostat can be used for
motor thermal overload protection. The thermostat leads are brought out through the motor
terminal box as leads P1 and P2.
These two leads must be wired to the regulator board control terminals 13 and 14.
The thermostat leads can be run with the motor armature and field power wiring.
NOTE: The Drive will not start if the circuit between terminals 13 and 14 is not made.
See Figure 3-8.
3.8.4 Main contactor (Refer to connection diagram example Figures 3-8a and 3-8b)
A main contactor in the AC-line input or armature circuit is not built-in and must be externally
provided. It allows ‘Coast-to-rest’ (Category 0) or ‘Ramp-to-rest’ (Category 1, according to
EN60204-1, Chap. 9.2.2.) each with disconnection of the power source from the motor.
The sequencing of the M-contactor must be controlled by the drive MCR contact of the FlexPak
3000, which is wired to terminal strip X1:5 and X1:6 located at top of the power unit.
On drives, where the inrush current of the M-contactor coil exceeds the MCR contact rating
(330 VA at AC 230V, cos phi 0.5), a pilot relay is required between the MCR contact output and
the M-contactor coil.
A normally open auxiliary contact from the main contactor must be wired to terminals X1:3 and
X1:4 to provide contactor status feedback to the drive.