IMO Jaguar CUB, Instruction Manual

Page: 94 / 170

5-22
Set the upper and lower frequencies correctly; otherwise, the inverter may
not operate. Maintain the following relationship:
(Upper frequency) > (Lower frequency), (Starting frequency), (Stop frequency)
(Lower frequency) < (Maximum frequency)
F18
C50
C32, C34
C37, C39
Bias (for Frequency Command 1)
Bias (Bias reference point for frequency command 1)
Analogue Input Adjustment (Gain and gain reference point for terminal input [12])
Analogue Input Adjustment (Gain and gain reference point for terminal input [C1])
If you select any analogue input for frequency command 1 (set by F01), you can
define the relationship between the analogue input and the set frequency arbitrarily
by combining the settings for bias (F18), bias reference point (C50), gains (C32 and
C37), and gain reference points (C34 and C39).
As illustrated in the graph below, the relationship between the set frequency and
analogue input level for frequency command 1 is shown by a straight line passing
through points "A" and "B." The point "A" is determined by the bias command (F18)
and its reference point (C50). The "B" is determined by the gain commands (C32 or
C37) and its reference point (C34 or C39). The combination of C32 and C34 will
apply for terminal [12] and that of C37 and C39 for terminal [C1].
The bias (F18) and gain (C32 or C37) should be set, assuming the maximum fre-
quency as 100%. The bias reference point (C50) and gain frequency point (C34 or
C39) should be set, assuming the full scale (+10 VDC or +20 mA) as 100%.
Analogue input under the bias reference point is limited by the bias data.