Delta MH300 Series - Page 974

Chapter 16 PLC Function ApplicationsMH300
16-111
API
FREQ
S1 S2
S3
Drive speed control mode
142
P
bit device
Word device
16-bit command (7 STEP)
FREQ
Continuous
execution type
FREQP
Pulse
execution type
32-bit command
－
－
－ －
Flag signal: M1015
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊
S2
＊ ＊ ＊
S3
＊ ＊ ＊
Notes on operand usage: none
 S
1
: Frequency command. S
2
: Acceleration time. S
3
: Deceleration time.
 S
2
, S
3
: In the acceleration and deceleration time settings, the number of decimal
places is determined by the definition in Pr.01-45.
Example
When Pr.01-45=0: units of 0.01 sec.. A setting of S
2
=50
(acceleration time) in the ladder
diagram below implies 0.5 sec., and the S
3
(deceleration time) setting of 60 implies 0.6
sec..
 The FREQ command can control drive F
requency commands, and acceleration
and deceleration time. It also uses special register control actions, such as:
M1025: Control drive RUN (ON)/STOP (OFF) (RUN requires Servo ON
(M1040
ON) to be effective)
M1026: Control drive operating direction FWD(OFF)/REV(ON)
M1040: Control Servo ON/Servo OFF.
M1042: Trigger Quick Stop (ON)/does not trigger Quick Stop (OFF).
M1044: Pause (ON)/release pause (OFF)
M1052: Lock frequency (ON)/release lock frequency (OFF)

M1025: Drive RUN (ON)/STOP (OFF), M1026: drive operating direction FWD
(OFF)/REV (ON). M1015: frequency reached.
 When M10=ON, sets the drive frequency command K300 (3.00 Hz) with an
acceleration and deceleration time of 0.
When M11=ON, sets the drive frequency command K3000 (30.00 Hz), with an
acceleration time of 50 (0.5 sec.) and deceleration time of 60 (0.6 sec.) (when
Pr.01-45=0).
 When M11=OFF, the drive frequency command changes to 0.
END
M13
M1044
FREQP
K300 K0 K0
FREQ
K3000 K50 K60
M11
M10
M10
M11
M1000
M1040
M12
M1042
M1000
M1025
M11
M1026
M14
M1052
 Parameters Pr.09-33 are defined on the basis of whether reference commands
have been cleared before the PLC operation.
bit 0: Prior to PLC scanning procedures, acts on whether the target frequency has
been cleared to 0. This is written to the FREQ command when the PLC is
On.