Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) - Manual (Page 150)

150 Rockwell Automation Publication 20B-UM002G-EN-P - July 2014
Appendix D Instructions for ATEX Approved Drives in Group II Category (2) G D Applications with ATEX Approved Motors
Start-Up & Periodic Drive
Testing Requirement The integrity of both the Hardware Enable input (Digital Input 6) and the
additional Aux Fault input must be maintained and verified periodically to meet
certification requirements. The interval must be determined by the requirements
of the application, but not be greater than one year. In addition to any
requirements to check the integrity of the over temperature device(s) and the
wiring of the over temperature contact closure to the drive terminals, the drive
circuitry itself requires testing. This must be done during a maintenance period
when the motor environment is not hazardous and all necessary precautions have
been taken to repeatedly start and stop the drive and motor safely.
Preparation
1. Disconnect all power from the drive including control power, if supplied.
2. Disconnect the motor from the driven load if necessary, to run this test.
3. Disconnect the motor over temperature contact connections from the
drive. This includes both Digital Input 6 (terminal 32) and the additional
required input (typically Digital Input 5, terminal 31). Remove the jumper
between the two inputs if one is in place.
4. Connect a means to open and close a N.C. contact between Digital Input
6 (terminal 32) and input common. Connect a separate means to open and
close a N.C. contact between the additional input (typically Digital Input
5, terminal 31) and input common (see
Figure 27 ). The switching devices
(pushbutton, relay, etc.) must have contacts rated for either the 24V DC or
115V AC input circuit, whichever was supplied with the drive.
Figure 27 - Example Test Circuit
5. Be sure both sets of test contacts are closed. Assure all control connections
are properly made to the drive. Reapply power to the drive including
external control power, if supplied.
ATTENTION: Power must be applied to the drive to perform the following
procedure. Some of the voltages present are at incoming line potential. To avoid
electric shock hazard or damage to equipment, only qualified service personnel
should perform the following procedure. Thoroughly read and understand the
procedure before beginning. If an event does not occur while performing this
procedure, Do Not Proceed. Remove Power including user supplied control
voltages. User supplied voltages can exist even when main AC power is not
applied to then drive. Correct the malfunction before continuing.
25
115V/
+24V *
Neutral/
Common
31
32
Digital Input 6
* Voltage is Board Dependent
External Power Supply
24 +24V DC
25 Digital In Common
26
32
Digital Input 6
** Not available with 115V I/O
Internal 24V Power Supply **