Delta DVP-ES2 Manual

2 Analog Output Module DVP02DA-E2/DVP04DA-E2
2.8.2 Controlling the Speed of AC Motor Drive
1.
Description
 VFD-B series AC motor drive offers analog input terminal AUI/ACM for accepting external analog voltage
-10V ~ 10V to control the FWD/REV frequency -50Hz ~ 50Hz of VFD-B. Therefore, you can use
DVP04DA-E2 for controlling the speed of the AC motor drive.
 Set the output signals of D/A module as mode 0, i.e. the voltage output mode (-10V ~ 10V).
2. Devices
 D0: the target frequency of VFD-B (FWD/REV frequency -50Hz ~ 50Hz).
 D40: the corresponding digital value of target output voltage at CH1
3. Wiring
 Connect the analog input terminal AUI/ACM on VFD-B to CH1 of DVP04DA-E2 (as shown below).
VO1
IO1
AG
FE
CH1
CH1
-10V~+10V
VFD-B
AUI
ACM
Volt ag e ou tpu t
Shielded cable
AC motor drive
4. Program explanation
 When PLC goes from STOP to RUN, set CH1 as voltage output mode (mode 0).
 In the voltage mode of DVP04DA-E2, the value range -10V ~ 10V corresponds to K-32000 ~ K32,000. D0
is the target frequency for VFD-B (FWD/REV frequency -50Hz ~ 50Hz), which should be multiplied with
640(i.e. 50/32,000 = 1/640) to obtain the digital output value. Multiply the value in D0 with 640 and store
the value obtained into D40 for DVP04DA-E2 to convert the digital value into voltage output, so as to
control the frequency of VFD-B
5. Program example
Ladder diagram: Explanation:
Set as mode 0 (voltage output mode)
D0 = the target frequency of VFD-B (REV /
FWD frequency -50Hz ~ 50Hz). Store the
operational result into D40.
D40 is the corresponding digital value of
target frequency specified in D0.
M1002
M1000
END
K0
K1TO
D0 K640
D9900
D40
K2
H0
MUL D40
MOV
DVP-ES2 Module Manual
2-13

Delta DVP-ES2 Specifications

General

Brand	Delta
Model	DVP-ES2
Category	Controller
Language	English