Toshiba Tosvert VF-A5 - Manual (Page 16)

Ratings of connected
meters:
Rating of FL signal contacts:
External use of control
power:
Open collector outputs:
Frequency-setting
potentiometer:
Connect a full-scale 1 mAdc DC ammeter or full-scale 7.5Vdc-1 mA DC
voltmeter to the control terminals.
The contact rating of the protection operation detection relay (FL) is
250Vac (cos0=O.4) 30Vdc-1A.
A max. of 24Vdc-100mA can be used from the P24 control power
terminal to drive external relays.
The RCH and LOW control terminals are open-collector outputs, and
can output a max. 24Vdc-50mA. Use of a 24Vdc OMRON MY1 relay
(RY) is recommended.
Always install a diode (200V-1A class)
for surge absorption. Take special note
of the diode polarity to avoid incorrect
application.
Use a potentiometer rated at 1k to 10kO-1/4W for the frequency­
setting Input signal.
P2<
RCH
5.3 Other Precautions
Use of crimp-on terminal
lugs:
Grounding terminal:
Built-in braking resistor
Internally-connected (E)
terminal:
The clearance between terminals on the inverter main circuit terminal
block is small, so use sleeved crimp-on terminal lugs for all main
circuit terminals. Take special care during connection so that the
terminal lugs do not make contact with neighboring terminal lugs.
Always ground the G/E grounding terminal with a wire that is 3.5mm®
or larger.
For inverter capacities that are 3.7kW or less, a built-in braking
resistor is connected between the main circuit terminals (PA1) and
(PB1), providing dynamic braking as a standard feature.
The (E) terminal is for internal connections, so do not remove
connections from it or make any external connections to it.
The main circuit wiring is shown in Fig. 5.1.
(For 3.7kW or less, not showing control power terminals RO, SO)
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