
122 Rockwell Automation Publication PFLEX-AP009A-EN-P - September 2012
Chapter 1 Drive Comparisons
PowerFlex DC DC Analog Tachometer Terminal Block
Table 24 - DC Analog Tachometer Terminal Designations
Figure 94 - Analog Tachometer Terminal Block Location
Table 25 - Recommended Signal Wire Size for DC Analog Tachometer
PowerFlex DC Resolver Feedback Module
The resolver feedback module (catalog number 20P-RES-A0), which provides a
drive interface to a selection of compatible resolvers, must be ordered and
purchased separately from the drive. The resolver option module includes the
PowerFlex DC Drive Resolver Feedback Module Installation Instructions,
publication 20P-IN071, which provides installation and wiring information. See
“Resolver Type Selection” in the PowerFlex Digital DC Drive User Manual,
publication 20P-UM001
, for more information on compatible resolvers.
ATTENTION: The Drive can overspeed if DIP switch S4 is set incorrectly, or the
tachometer is wired incorrectly. Failure to observe this precaution could result in
damage to, or destruction of, the equipment.
No. Signal Description
–Negative input –
A(Not Used)
B
C
+ Positive input
Feedback polarity is determined during the
start up routine.
22.7 / 45.4 / 90.7 / 181.6 / 302.9V
(1)
max voltage
8 mA max. current
(1) Maximum voltage depends on the configuration of DIP switch S4. Refer to the PowerFlex® Digital DC Drive User Manual, publication
20P-UM001
for information on jumper settings.
Signal Type Terminal Block
(Terminals)
Wire Type and Size
(1)
(1) See “Cable and Wiring Recommendations in the PowerFlex Digital DC Drive User Manual, publication 20P-UM001.
Tightening
Torque
N
•m (lb•in)
Flexible
(mm
2
)
multi-core
(mm
2
)
AWG
DC Analog Tach M3 (+ and –) 0.140…1.500 0.140…1.500 26…16 0.4 (3.5)
A
B
C
+
−
Analog Tachometer terminal block
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