Yaskawa V7 Drives - Manual (Page 78)

5-26
Continued
F. Data 34 : Up/Down Function
Programming data " 34 " for n056 (multi-function input terminal) allows the S6 / S7 inputs to be
used for Up/Down frequency setting.
NOTES:
1. Parameter n055 will not be valid when n056 is set to " 34 ".
2. Jog has priority over Up/Down.
3. Up/Down has priority over Multi-step Frequency inputs.
4. Upper limit speed is set by the formula:
n011 (Fmax) x
n033 (Freq. Ref. Upper Limit)
100
5. Lower limit speed is from n034 , Frequency Reference Lower Limit.
6. See section 5.10 for information on the Up/Down hold memory.
EXAMPLE:
n056 Data 34: Up/Down function
Drive
S6 DOWN
S7 UP
SC
0V
DOWN
o o
UP
o o
INPUT SIGNAL
Term. S6 Term. S7 FUNCTION
DOWN UP
Open
Open HOLD
Open Closed DOWN (Frequency command approaches minimum
output frequency or frequency command lower limit,
whichever is larger)
Closed Open UP (Frequency command approaches frequency
command upper limit)
Closed Closed HOLD
5.18 MULTI-FUNCTION INPUT TERMINALS (Term. S1-S7)