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Johnson Controls VFD66 Series, Product/Technical Bulletin, Page: 12 / 17

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Johnson Controls VFD66 Series Product/Technical Bulletin Download Page 12

230

220

210

200

190

180

170

160

150

140

130

120

35

40

45

50

55

60

Output Frequency (Hz)

Output

Voltage 

(VAC)

220 

210

200 

190

180

170

160

150

138

Input

Voltage

(VAC)

230

 

Figure 15: Output Voltage and Frequency vs. Input 

Power, 208/230 VAC 

460

440

420

400

380

360

340

320

300

280

260

240

35

40

45

50

55

60

Output Frequency (Hz)

Output

Voltage 

(VAC)

440 

420

400 

380

360

340

320

300

276

Input

Voltage

(VAC)

460

 

Figure 16: Output Voltage and Frequency vs. Input 

Power, 400/460 VAC 

Examples 

These examples use a VFD66 control rated for 
400/460 VAC at 50/60 Hz. The control is used in North 
America, so the maximum supply voltage is 460 VAC 
at 60 Hz. 

If the supply voltage is 460 VAC (100% of 460 VAC), 
the VFD66 control runs the motor at full speed 
(460 VAC at 60 Hz). 

If the supply voltage drops to 368 VAC 
(80% of 460 VAC), the VFD66 control can only provide 
368 VAC and the control reduces the output frequency 
to 53 Hz. 

If the supply voltage drops to 276 VAC 
(60% of 460 VAC), the VFD66 control can only provide

 

276 VAC and the control reduces the output frequency 
to 40 Hz. 

If the supply voltage drops below 276 VAC 
(60% of 460 VAC), then the VFD66 control stops the 
motor and does not restart it until the supply voltage 
rises to at least 276 VAC. 

Unexpected Operation 

If the VFD66 control operates in an unexpected 
manner, check the jumper position on jumper blocks 
J7 and J8. See Figure 3, Table 10, and Table 11 for 
possible operation scenarios when the jumper position 
is not correct for the input device connected to the 
VFD66. 

Table 10: Possible Operation Scenarios Related to 
Jumper Block J7 

If the 
control is 
set for___. 

And if the 
control 
receives___. 

The result is___ 

0-10 VDC 
(J7 jumper 
installed) 

0-5 VDC 

the VFD66 control only 
drives the motor at half 
of the full motor speed. 

0-5 VDC 
(J7 jumper 
removed) 

0-10 VDC 

the VFD66 control only 
uses 0-5 VDC and the 
motor reaches full 
speed when the input 
signal is at 5 VDC. 

Table 11: Possible Operation Scenarios Related to 
Jumper Block J8 

If the control 
is set for____. 

And ____ 
input 
devices 
are used 

The result is____. 

one input 
(J8 installed) 

two  

the second input 
device is ignored. 

one input 
(J8 installed) 

none 

the VFD66 control runs 
the motor at full speed 
only. 

two inputs 
(J8 removed) 

one 

the VFD66 control runs 
the motor at full speed. 

two inputs 
(J8 removed) 

none 

the VFD66 control runs 
the motor at full speed 
only. 

Shutdown 

The ALARM LED indicates fault conditions and 
provides diagnostic information. Constant illumination 
of this LED indicates that the motor is overloaded and 
the VFD66 control shuts down the motor. When the 
ALARM LED flashes, the VFD66 control has shut 
down the motor. The number of times the ALARM LED 
flashes indicates the cause of the fault. See Table 12. 

12    

VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin 

If the supply voltage drops to 276 VAC 
(60% of 460 VAC), the VFD66 control can only provide 

276 VAC and the control reduces the output frequency 
to 40 Hz. 

Summary of Contents for VFD66 Series

Page 1: ...ion specific design of the VFD66 control provides a simple interface which makes the control easy to understand and operate Figure 1 VFD66 Condenser Fan Speed Control with NEMA 1 Enclosure Features and Benefits Isolated Input Circuitry Permits application with 0 5 VDC or 0 10 VDC controllers sensors transducers and Johnson Controls System 350 controls Simultaneous Acceptance of Two Similar Inputs ...

Page 2: ...1 4 159 4 3 4 120 4 5 8 117 7 1 4 184 Diagnostic Light Emitting Diodes LEDs Figure 2 VFD66 NEMA 1 Enclosure Dimensions The VFD66 control can also stabilize the condenser head pressures which helps optimize compressor operation and can reduce wear and extend compressor life eliminate the condenser fan short cycling which can reduce motor repair and replacement costs stabilize evaporator temperature...

Page 3: ...harged for a period of time after power is removed Failure to wait until the VFD66 control fully discharges could cause electric shock personal injury or death NEMA 1 Enclosure Follow these steps to remove the terminal cover 1 Remove the terminal cover screw and push downward on the ventilation holes 2 Pull outward on the top of the terminal access cover J7 J8 TB3 1 2 3 4 TB1 L3 L2 L1 TB2 P1 T1 T2...

Page 4: ...rminal Block TB3 Figure 3 See Table 2 Figure 4 Figure 5 and Figure 6 for additional information on wiring specific Johnson Controls PENN input devices to the VFD66 controls Table 2 Wiring Johnson Controls PENN Input Devices Input Device Input Device Terminal VFD66 Control TB3 Terminal 1 1 2 2 or 3 1 P35AG 9200R Transducer 3 4 V 2 or 3 1 A350PS 1C or P352PN Series Controls C 4 Red 1 White 2 or 3 1 ...

Page 5: ...er 322455 for 12 10 AWG wire size Wiring Input Power CAUTION Risk of Property Damage Ensure that the power source conforms to the requirements of the equipment Failure to use a correct power source may result in permanent damage to the equipment IMPORTANT Wiring line voltage input power to the wrong terminal block will damage the VFD66 control Wire input power ONLY to Terminal Block 1 TB1 The inpu...

Page 6: ...ave all the jumpers in the installed position and the potentiometers set fully clockwise See Table 4 Figure 3 and Figure 9 Table 4 Jumper Settings by Function Jumper Block Function Jumper Removed1 Jumper Installed J2 J3 Mode of Operation See Selecting an Input Mode J4 Acceleration Deceleration Time 5 Seconds 30 Seconds J5 Internal External P1 J6 Internal External P2 Do not move the jumpers from th...

Page 7: ...k less effective in dissipating the generated heat High altitudes have thinner air than lower altitudes which is less effective in dissipating heat The less effective the heat sink is the lower the maximum output ampere rating of the VFD66 control Temperature De Rating For temperatures up to 122 F 50 C the maximum output ampere rating is unaffected by temperature At temperatures between 122 F 50 C...

Page 8: ...6 Amperes If the VFD66 control is used in Denver Colorado altitude 5200 ft and the ambient temperature reaches 140 F 60 C then the VFD66 control is de rated to a 7 5 ampere maximum current draw due to the high ambient temperature and is further de rated to 7 05 amperes of current draw because of high altitude De rated Maximum Output Amperes 7 5 Amperes x 0 94 7 05 Amperes Commissioning Table 6 Mod...

Page 9: ...idles Installed Removed Can be set at 0 50 of maximum motor speed CW Motor shuts off P1 adjusts the minimum speed of the motor The minimum speed is adjustable from 0 to 50 of total motor speed Turning P1 Clockwise CW increases minimum speed setting Counterclockwise CCW decreases minimum speed setting P2 determines whether the motor idles at minimum speed or shuts off at minimum speed P2 must be se...

Page 10: ... voltage from 10 90 of the 5 VDC supply power as the pressure goes from minimum to maximum of the transducer rating Pressure RPM 100 50 Setpoint Set by P1 and J3 25 100 psi 50 psi Proportional Band Set by P2 200 psi 250 psi Note Non ratiometric transducers generate more error than ratiometric transducers 0 10 VDC P499 transducers are not ratiometric The J7 jumper position sets the input signal vol...

Page 11: ... to the VFD66 controls When power is disconnected from the VFD66 controls this LED remains illuminated while the power supply capacitors discharge If the motor is not running when power is removed the LED may remain illuminated for up to 5 minutes while the capacitors discharge The ALARM LED indicates fault conditions and provides diagnostic information Constant illumination of this LED indicates ...

Page 12: ... blocks J7 and J8 See Figure 3 Table 10 and Table 11 for possible operation scenarios when the jumper position is not correct for the input device connected to the VFD66 Table 10 Possible Operation Scenarios Related to Jumper Block J7 If the control is set for___ And if the control receives___ The result is___ 0 10 VDC J7 jumper installed 0 5 VDC the VFD66 control only drives the motor at half of ...

Page 13: ...ad is too large Install jumper on J4 to slow acceleration deceleration rate Input voltage is too high Ensure that the input voltage matches the rating of the model of the VFD66 control Two Over Voltage Fault trips if voltage exceeds 123 of nominal VFD66 control deceleration time is shorter than time needed to stop the load Install the jumper on J4 to slow acceleration deceleration rate Mechanical ...

Page 14: ...rs A VFD66 control can control multiple motors however the sum of the Full Load Amperes FLA ratings for the motors must not exceed the maximum output amperage rating of the VFD66 control including any de rating due to altitude and or temperature Ordering Information To select the proper model of the VFD66 control for a specific application 1 Locate the nameplate dataplate on the motors intended fo...

Page 15: ...19 5 8 ft 6 m Product code numbers ending in K are P499 kit models that include one P499 transducer model and one WHA PKD3 200C 6 1 2 ft 2 m wiring harness To order a single P499 transducer model without a WHA PKD3 200C wiring harness replace the K with a C at the end of the P499 product code number P499RAP type models are 0 5 VDC ratiometric pressure transducers with an 1 8 in 27 NPT male externa...

Page 16: ...ol ratings Table 15 Ordering Table for NEMA 1 Enclosure Models Product Code Numbers Voltage Rating Ampere Rating1 Control Only Control with One P35 Transducer Included Control Only with Alarm Output 4 0 VFD66AAA 1C VFD66AAA 100C VFD66AAE 1C 7 5 VFD66CAA 1C VFD66CAA 100C VFD66CAE 1C 208 230 VAC 60 Hz 230 VAC 50 Hz 10 6 VFD66EBA 1C 2 VFD66EBA 100C 2 VFD66EBE 1C 2 1 8 VFD66BAA 1C VFD66BAA 100C N A 3 ...

Page 17: ... CSA C22 2 No 14 Emissions Compliance FCC US DOC Canada based on EU testing with Emissions Compliance items installed shown in Figure 8 EU Directive Compliance CE mark 72 23 EEC Low Voltage Directive and 89 336 EEC EMC Directive compliance with Emissions Compliance items installed shown in Figure 8 Input Devices Johnson Controls PENN A350P P35 P352P P499 Performer Rack Controllers Johnson Controls...

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