Fuji Electric FRENIC-HVAC User Manual page 357

(Point B)
Frequency command 1 (F01), Frequency command 2 (C30)
To specify the maximum frequency equal to the reference frequency for an analog input
being at 5 V, set the gain to 100% (C32 = 100). Since 5 V is the gain base point and it is equal
to 50% of 10 V (full scale of terminal [12]), set the gain base point to 50% (C34 = 50).
The setting procedure for specifying a gain or bias alone without changing any base
points is the same as that of Fuji conventional inverters of FRENIC5000G11S/P11S
series, FVR-E11S series, etc.
In the case of bipolar input
(terminal [12] with C35 = 0, terminal [V2] with C45 = 0)
Setting C35 and C45 data to "0" enables terminals [12] and [V2] to be used for bipolar input
(-10 V to +10 V), respectively.
When both the bias (F18, C55 or C67) and its base point (C50, C56 or C68) are set to "0," the
negative and positive voltage inputs produce reference frequencies symmetric about the
origin point as shown below.
• Configuring the bias (F18, C55 or C67) and its base point (C50, C56 or C68) to
specify an arbitrary value (Points A
• To input bipolar analog voltage (0 to ±10 VDC) to terminals [12] and [V2], set
C35 and C45 data to "0." Setting C35 and C45 data to "1" enables the voltage
range from 0 to +10 VDC and interprets the negative polarity input from 0 to -10
VDC as 0 V.
• A reference frequency can be specified not only with the frequency (Hz) but also
with other menu items, depending on the setting of function code E48 (= 3 to 5,
or 7).
6.3 Details of Function Codes
, A , and A ) gives the bias as shown below.
1 2 3
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