Yaskawa V7 Drives - Manual (Page 14)

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Example 6: Remote Sequence (2-Wire) & Remote Reference
(0 – 10 VDC) and three digital preset speeds
OPERATION:
• Close (K1) to Run Forward.
• Close (K2) to Run Reverse.
• If both (K1) & (K2) are closed, the drive stops and displays the error message: “EF.”
• Frequency reference is determined by the status of the switches (SW1) and (SW2).
• If the drive is put in the “Local” mode using the LO/RE quick start LED, the drive will behave the same as
illustrated in Example 1.
Table 7: Programming Required For Remote 2-wire Sequence & Multiple References
FS
FR
FC
DATA
ENTER
DSPL RUN MIN MAX
REV
MULT
STEP 1
MULT STEP 2
0 - 10V
FREQ. REF
ANALOG
COMMON
FWD
Forward Run
Reverse Run
(K1)
S1
S2
S3
S4
S5
S6
S7
SC
STOP
RESET
FREF FOUT IOUT MNTR
PRGM LO/RE F/R
Shield (Drain Wire)
To Terminal
Shield
(Drain Wire)
External
0 - 10 VDC
Source
Control Wiring Schematic
0. 0 0
(K2)
(+)
(–)
(SW1)
(SW2)
(SW1) Status (SW2) Status Reference Source
Open Open Analog value on terminal FR
Closed Open Digital value stored in parameter n025
Open Closed Digital value stored in parameter n026
Closed Closed Digital value stored in parameter n027
Parameter Display Description
n001 10
n001 4
n025 User Set
n026 User Set
n027 User Set
n036 Set Motor FLA
The drive will perform a 2-wire reset.
Setting this value will reset all parameters to their original factory
settings (all previous adjustments will be lost).
When the drive
completes the reset, this parameter returns to a value of 1.
CAUTION
After doing the reset above, the password parameter returned to a
1. Change it to a 4 to get access to all parameters in the drive.
Sets the frequency reference when switch (SW1) is closed and
switch (SW2) is open.
Sets the frequency reference when switch (SW1) is open and switch
(SW2) is closed.
Sets the frequency reference when switches (SW1) and (SW2) are
closed.
Enter the motor’s full load amps as shown on motor nameplate.