Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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5-38
Ch
ap
. 5
FUNCTION C
O
DES
F codes
(Point B)
To make 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 terminal [12] and [V2] to be used for bipolar input (-10 V to +10 V) respectively.
When both F18 (Bias) and C50 (Bias base point) are set to "0," the negative and positive voltage inputs produce reference
frequencies symmetric about the origin point as shown below.
Configuring F18 (Bias) and C50 (Bias base point) to specify an arbitrary value (Points A
1
, A
2
, and A
3
) gives the
bias as shown below.
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).
[ 3 ] Using digital input signals UP/DOWN (F01 = 7)
When the
UP/DOWN
control is selected for frequency setting with a run command ON, turning the terminal command
UP
or
DOWN
ON causes the output frequency to increase or decrease, respectively, within the range from 0 Hz to the maximum
frequency as listed below.
To enable the
UP/DOWN
control for frequency setting, it is necessary to set F01 data to "7" and assign the
UP
and
DOWN
commands to any of digital input terminals [X1] to [X7], [FWD] and [REV] with any of E01 to E07 (data = 17 or 18).
UP DOWN
Function
Data = 17 Data = 18
OFF OFF Keep the current output frequency.
ON OFF Increase the output frequency with the acceleration time currently specified.
OFF ON Decrease the output frequency with the deceleration time currently specified.
ON ON Keep the current output frequency.