Fuji Electric Frenic Mega Series - Page 86

2.2 Wiring
2-33
Chapter 2 INSTALLATION AND WIRING
 Fan power source switching connector "CN R", "CN W" (200 V class series with 37 kW or above, 400 V class
series with 75 kW or above)
FRENIC-MEGA supports direct current power supply input with PWM converters in the standard specification.
However, inverters of 37 kW or above in 200 V class series and 75 kW or above in 400 V class series contain
parts which are driven by AC power supply such as the AC fan, so AC power must also be supplied. When using
DC power for the inverter, move connector "CN R" to NC side, move connector "CN W" to FAN side, and connect
a designated AC power source to the auxiliary power input terminals for the fan (R1, T1).
For details on the switching procedure, refer to Figures 2.2-28 and 2.2-29.
(a) For FRN37G1S-2J to FRN75G1S-2J, and FRN75G1S-4J to FRN110G1S-4J
Setting
Application
In the case terminals R1 and T1 are NOT
used
(Factory default)
In the case terminals R1 and T1 are used
• DC bus input type
• Combination with PWM converter
(b) For FRN90G1S-2J, and FRN132G1S-4J to FRN630G1S-4J
Setting
Application
In the case terminals R1 and T1 are NOT
used
(Factory default)
In the case terminals R1
and T1 are used
• DC bus input type
• Combination with PWM converter
The fan power source switching connector "CN R" is on FAN and "CN W" is on NC when shipped from
the factory. When direct current power supply input is not used, do not alter the setting.
Mistakes in the fan power source switching connector setting may prevent the cooling fan from
operating, and alarms such as cooling fin overheat
0h1 and charging circuit error pbf may be
generated.
CN W
(white)
CN R (red)
CN W
(white)
CN R (red)
CN W
(white)
CN R
(red)
CN R
(red)
CN W
(white)