Section 6, Operation and connection examples – Toshiba VT130G1 User Manual
Page 27
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Section 6
OPERATION AND CONNECTION EXAMPLES
1.
Connection of remote speed reference signals,
a) With variable resistor (3 K H pot.)
NOTE: Disconrect the cover
—^CRF
mounted speed pot. from
terminals CRF, REF, and OV.
3kfì
0.1
w
b) With curren: input.
4
to
20 mA
[;
IRF
OV
E
c) With voltage input.
NOTE; Disconnect REF lead from
cover mounted pot and
turn pot on. Motor speed
will follow your 0 to 12 V
input signal.
d) Switching between variable resistor and current input.
SW'ON: Variable resistor is
selected.
SW-OFF: 4 to 20 mA current is
selected.
CRF
REF
ov
NOTE; The variable resistor is to be mounted with a switch (SW). 4 to 20 mA
current input is selected when the switch Is turned ok Use
a
20 mA cur
rent rated switch. For local/remote operation, the standard cover mounted
speed pot has an integral switch which wilt allow the 4-20mA signal to
control the motor SPEED when the pot is in the OFF position.
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