63
RS-485 Communications
RS-485 is a US-based telecommunications
standard for binary serial communications
between devices. It is the protocol, or set of
specifications, that needs to be followed to allow
devices that implement the standard to speak
to each other. A fully compliant RS-485 port is
included in the Pentek Intellidrive system to
permit serial connections among more than two
devices on an RS-485 compliant network. Figure
19 shows two-wire connection to the Drive.
Lightning/Surge Protection
Lightning arrestors or other surge suppressing
devices can be used with this product. MOV(Metal
Oxide Varistor), SOV(Silicon Oxide Varistor).
Accessories
Part Description Qty Part Number
Alternating Control Panel 1 VFD-ALT
Moisture Sensor 1 VFD-WS
Surge Protection Kits 1 VFD-SGA
300 PSI Transducer 1 U17-2000
Flow Switch 1 U17-1999
Retrofit Applications
When retrofitting an installation with the Pentek
Intellidrive, most of the preceding text can be
applied. As a convenience, the recommended
Service Factor Amps for non-Pentek
®
motors is
provided in Table 11. Always verify Service Factor
Amp values from current manufacturer literature.
Table 11 - Service Factor Amps @ 230V
Motor Type HP
Service Factor Rating,
in Amps
CentriPro
®
¹
Franklin
Electric
®
²
2-Wire
1/2 4.7
N/A
3/4 6.4
1 9.1
1-1/2 11.0
CS/CR 3-Wire
1/2 4.9 4.3
3/4 6.3 5.7
1 7.2 7.1
1-1/2 11.1 11.5
2 12.2 13.2
3-Phase
1/2 2.9 2.9
3/4 3.9 3.8
1 4.7 4.7
1-1/2 6.1 5.9
2 7.6 8.1
3 10.1 10.9
5 17.5 17.8
¹ CentriPro SFA data was taken from the March 2012 BMAID
manual on 4/2012.
² Franklin Electric SFA data was taken from the 7/2011 Franklin
Electric AIM manual on 4/2012.
NOTICE The Pentek Intellidrive will not operate
Franklin Electric 2-wire motors.
Repair Parts
Part Description Qty Part Number
Input Terminal Block Connector 1 PID-CON2
Output Terminal Block
Connector
1 PID-CON3
Cooling Fan 1 PID-FAN-R
Pressure Transducer 1 U17-1561-R
10’ Transducer Cable 1 U18-1593
25’ Transducer Cable* 1 U18-1594
50’ Transducer Cable* 1 U18-1595
100’ Transducer Cable* 1 U18-1596
150’ Transducer Cable* 1 U18-1597
200’ Transducer Cable* 1 U18-1598
Keypad 1 PID-HMI-R
* Purchase Separately
6544 0412
01+ 01- I1+ I1- I2+ I2- V+ V- AI+ AI- P N SD CARD
Figure 19 - Example RS-485 Connection
SECTION 8: Pentek Intellidrive
™
Variable Frequency Drives
8.7 Wiring Sizing, Repair Parts,
Specifications
PENTEK
INTELLIDRIVE
CentriPro
®
is a registered trademark of Fluid Handling LLC.
Franklin Electric
®
is a registered trademark of Franklin Electric Co. Inc.
All other brand or product names are trademarks or registered trademarks of Pentair Ltd.
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