Rockwell Automation 20D PowerFlex 700H and 700S Frame 9...14 Drives - Manual (Page 204)

204 Rockwell Automation Publication PFLEX-IN006E-EN-P - July 2013
Appendix E Instructions for ATEX Approved PowerFlex 700H Drives in Group II Category (2) Applications with ATEX Approved Motors
• When the motor is indicated for ATEX Group II Category 2 for use in
dust environments (Category 2D) the motor must be protected by an
enclosure (according to EN50281-1-1 or according to
IEC61241-1: Ex tD). Group II motors are marked with a temperature.
• The motor over temperature signal supplied to the drive must be a
normally closed contact (open during over temperature condition)
compatible with the digital (logic) input circuitry of the drive. If multiple
sensors are required in the motor, the connection at the drive must be the
resultant of all required contacts wired in series.
• See all product markings for additional cautions that may apply.
• Typical motor markings are contained on a motor certification nameplate
similar to the sample below.
Drive Wiring
The first input must energize the SD1 input (terminals X5-1 & X5-2) on the
drive option board (20C-DG1). The second input must energize the SD2 input
(terminals X5-3 & X5-4) on the option board. This option board must be
installed in the drive for ATEX applications. It is offered with 24V DC input
only. Both input signals are wired with respect to the drive's digital input
common when using a control board with 24V I/O. See
Figure 6 on page 33 for
wiring examples. Motor supplied contacts must have ratings compatible with the
input circuit ratings and applied voltage level of the drive.
FLAMEPROOF Exd ENCLOSURE
EExd I/IIB Tamb C to C
II 2 G/D
I M2 Sira ATEX
MFG. BY ROCKWELL AUTOMATION
0518
IMPORTANT ATEX certification of this drive requires that two separate inputs be configured
to monitor a normally closed over temperature contact (or multiple contacts
wired in series) presented to the drive from the motor.