Toshiba TOSVERT VF-AS3 Instruction Manual page 162

4. 4. 3
Digital input both a run command and a frequency command externally.
• First, check connection from external contacts such as switch/relays to the control terminal.
Here is a case where run/stop is input by a switch and a frequency command is operated by 3-speed
operation (controlled with two relays).
• Next, make setting so that a run command and a frequency command can be input externally
(terminal).
• After setting the above, operate the motor by using the external switch or external signal.
• The parameters to be set are <CMOd: Run command select>, <Sr1: Preset speed 1>, <Sr2: Preset
speed 2>, and <Sr3: Preset speed 3>.
• Control connection is explained in the case of sink logic.
4
Reference
9
1 Turn off the power of the inverter.
2 Remove the covers of the control terminal block and parts required for connection.
to be removed vary depending on the type of the inverter.
For details of how to remove the covers, refer to [2. 2].
4. [Basic operation] Operation methods of motor
[Operation example 3] Switching run/stop and
frequency with external switch
• How to switch the display mode of the operation panel -> Refer to [3. 1. 2]
• Procedure to change parameter setting -> Refer to [4. 2. 3]
• Details of <CMOd: Run command select> -> Refer to [5. 2. 1]
• Difference of connection between sink logic and source logic -> Refer to [2. 3. 5]
• Details of operation by external signals -> Refer to [Chapter 7]
MCCB
or
ELCB
R/L1
S/L2
T/L3
PA/+ PB PC/-
U/T1
V/T2
W/T3
F
S1
Operation panel
S2
CC
4-38
E6582062
Motor
M
Fwd run
Preset speed switching 1
Preset speed switching 2
Common
Covers