Mitsubishi Electric MELIPM Series Instruction Manual page 29

Ratings of transistor output terminals
Max. permissible voltage: 27VDC, max. permissible current:
MEMO
0.1ADC
When driving a coil load, connect a diode.
NOTICE
(4) Contact output terminals
When the protective function is activated, the relay contact connected to the
terminal opens/closes.
Symbol Contact Capacity
200VAC 0.3A or
A, B, C
30VDC 0.3A
The response time of the contact output terminals is less than
100ms. (After drive unit output shutoff)
When the drive unit is powered off, the contact output is placed in a
MEMO normal status. Therefore, the contact output signal is not held when
power is switched off after the protective function has been
activated. When the signal must be held, provide an external
holding circuit.
(5) Instrument connection terminals
Used to display the motor speed externally.
You can use the parameter function to choose the item other than the motor
speed.
Symbol Name
Meter
FM
connection
The output signal from the FM terminal is updated at intervals of
MEMO
several 10ms.
Refer to: 3.3.5 Wiring of the transistor output
Refer to: Chapter 6, 6.1.1 Protective function
Normal
Protective function activated: Terminals B-C open
Refer to: Chapter 8, 8.7.5 Selection of the instrument
connection terminal functions
The output voltage has an 8VDC pulse waveform.
The output varies in proportion to the motor speed and the average
voltage is preset to approx. 4.7V at the rated speed and 1440
pulses/s.
As a meter, use a 1mA moving-coil type DC ammeter or digital
counter.
As the common terminal, use terminal SD.
3-8
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terminals
activated
Description
: Terminals B-C closed
(Terminals A-C open)
(Terminals A-C closed)
Description
3. WIRING