Inovance MD380-5T5.5GB - Page 139

Description of Function Codes
MD380 User Manual
- 138 -
It is used to select the setting channel of the main frequency. You can set the main
frequency in the following 10 channels:
 0: Digital setting (non-retentive at power failure)
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change the set frequency by pressing
and on the operation panel (or using
the UP/DOWN function of input terminals).
When the AC drive is powered on again after power failure, the set frequency reverts to
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 1: Digital setting (retentive at power failure)
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change the set frequency by pressing keys
and on the operation panel (or
using the UP/DOWN function of input terminals).
When the AC drive is powered on again after power failure, the set frequency is the
value memorized at the moment of the last power failure.
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whether the set frequency is memorized or cleared when the AC drive stops. It is
related to stop rather than power failure.
 2: AI1 (0–10 V voltage input)
 3: AI2 (0–10 V voltage input or 4–20 mA current input, determined by jumper J8)
 4: AI3 (0–10 V voltage input)
The frequency is set by analog input. The MD380 control board provides two analog
input (AI) terminals (AI1, AI2). Another AI terminal (AI3) is provided by the I/O extension
card.
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voltage of AI1, AI2 and AI3 and the target frequency, three of which are linear (point-
point) correspondence and two of which are four-point correspondence curves. You can
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When AI is used as the frequency setting source, the corresponding value 100% of the
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 5: Pulse setting (DI5)
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is 9–30 V (voltage range) and 0–100 kHz (frequency range). The corresponding value
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 6: Multi-reference
In multi-reference mode, combinations of different DI terminal states correspond to
different set frequencies. The MD380 supports a maximum of 16 speeds implemented
by 16 state combinations of four DI terminals (allocated with functions 12 to 15)
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(Maximum frequency).
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