Johnson Controls Penn VFD68D Series Technical Bulletin page 9

Table 3: Environmental Considerations
Surrounding Air
1
Temperature
Ambient Humidity
Storage Temperature
Atmosphere
1. Surrounding air temperature is a temperature measured at a measurement position in an enclosure. Ambient air
temperature is a temperature outside an enclosure. The VFD68 is designed to operate above 50°C by following the
maximum output current derating limits show in Table 4 and Table 5 and Figure 2.
2. Altitude limit given is for standard operation of the VFD. For operation at higher altitudes, derate by 3% for each 500 m
(1,640.4 ft), up to a maximum of 2,500 m (8,202 ft) (91% derating).
Table 4: Maximum Current Output Derating above 50°C by VFD68Bxx Drive Model
VFD68Bxx Models Rated Capacity
VFD68BBB
VFD68BCB
VFD68BDC
VFD68BFD
VFD68BGG
VFD68BHG
VFD68BJK
VFD68BKL
VFD68BLL
VFD68BMP
VFD68BNP
-40 to 50°C (-40 to 122°F)
as measured 5 cm from the VFD
90% RH or less (Non-condensing)
-40 to 65°C (-40 to 149°F)
Indoors (no corrosive and flammable gases, oil mist, dust and dirt.)
2
Altitude Limit : Below 1,000 m (3,280 ft) above sea level
2
Vibration Limit: 5.9 m/s (19.4 ft/s
Maximum Output
kW (HP) Current at 50°C
(Amperes)
0.1 (1/8)
0.2 (1/4)
0.4 (1/2)
0.75 (1)
1.5 (2)
2.2 (3) 10.0
3.7 (5) 16.5
5.5 (7-1/2) 23.8
7.5 (10) 31.8
11 (15) 45.0
15 (20) 58.0
VFD68 Variable Frequency Drives
9
VFD68
5 cm
x
(2 in.)
5 cm
(2 in.)
x
x = Measurement Position
2
) or less at 10–55 Hz (directions of x, y, z axes)
Maximum Output
Current at 60°C
(Amperes)
0.8 0.6
1.4 1.1
2.5 2.1
4.2 3.5
7.0 5.9
8.5
14.0
20.2
27.0
38.2
49.3
5 cm
x
(2 in.)
Maximum Output
Current at 70°C
(Amperes)
0.5
0.9
1.7
2.9
4.9
7.0
11.5
16.6
22.2
31.5
40.6