External Base Block; Increase/Decrease Master Frequency - Delta VFD-L series User Manual

VFD-L Series
d12, d13 External Base Block:
Parameter values d12, d13 program Multi-Function Input Terminals: M1 (Pr.4-04), M2
(Pr.4-05) or M3 (Pr.4-06) for external Base Block control. Value d12 is for normally open
(N.O.) input, and value d13 is for a normally closed (N.C.) input.
Note: When a Base-Block signal is received, the AC drive will stop all output and the motor
will free run. When base block control is deactivated, the AC drive will start its speed
search function and synchronize with the motor speed, and then accelerate to
Master Frequency.
E x te rn a l
b a s e -b lo c k
s ig n a l
O u tp u t
fre q u e n c y
O u tp u t
v o lta g e
C a p a c ito r
d is c h a r g e
d14, d15 Increase/Decrease Master Frequency:
Parameter values d14, d15 program the Multi-Function Input Terminals: M1 (Pr.4-04), M2
(Pr.4-05) or M3 (Pr.4-06) to incrementally increase/ decrease the Master Frequency each
time an input is received.
B .B .(N .O .)
M x " C lo s e " : O p e ra tio n a v a ila b le .
s e ttin g b y d 1 2
B .B .(N .C .)
M x " O p e n " :O p e ra tio n a v a ila b le .
s e ttin g b y d 1 3
G N D
A llo w a b le m a x . p o w e r lo s s tim e
P r.8 - 0 4 = d 1
S p e e d s e a rc h s ta rts w ith th e
re fe re n c e v a lu e
P r.8 - 0 6
L o w v o lta g e
M in . b a s e -b lo c k tim e
L o w v o lta g e
U P
M x " C lo s e " : F re q . w ill in c re a s e
s e ttin g b y d 1 4
D O W N
M x " O p e n " :F re q . w ill d e c r e a s e
s e ttin g b y d 1 5
G N D
5-24
S p e e d s y n c h ro n iz a tio n
d e te c tio n
S p e e d s e a rc h o p e ra tio n
b y o n e u n it.
b y o n e u n it.
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