Specifications

5
VFD-M Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-39
Application Note:
PLC program execution will be interrupted when values for JOG parameters 15 and 16 are
changed.
Pr.79
PLC Forward/Reverse Motion
Factory Setting: 00
Settings 00 to 127
 This parameter determines the direction of motion for the multi-speed Pr.17 to Pr.23 and
Master Frequency. The original direction of Master Frequency will become invalid.
Note: A 7-bit binary number is used to program the forward/reverse motion for each of the 8
speed steps (including Master Frequency). The binary notation for the 7-bit number must
be translated into decimal notation and then entered in Pr.79.
1234
5
67
Weights
Bit
0=Forward
1=Reverse
Direction of 1st Pr.17 speed for
Direction of 2nd Pr.18 speed for
Direction of 3rd Pr.19 speed for
Direction of 4th Pr.20 speed for
Direction of 5 Pr.21th speed for
Direction of 6 Pr.22th speed for
Direction of 7 Pr.23th speed for
Example:
1234
5
67
Weights
Bit
0=Forward
1=Reverse
Forward motion of Pr.17 multi-speed1
Reverse motion of Pr.18 multi-speed2
Forward motion of Pr.19 multi-speed3
Forward motion of Pr.20 multi-speed4
Forward motion of Pr.21 multi-speed5
Reverse motion of Pr.22 multi-speed6
Forward motion of Pr.23 multi-speed7
0
1
00010
Direction
The setting value=bit7 x 2
6
+bit6 x 2
5
+bit5 x 2
4
+bit4 x 2
3
+bit3 x 2
2
+bit2 x 2
1
+bit1 x 2
0
= 0 x 2
6
+1 x 2
5
+0 x 2
4
+0 x 2
3
+0 x 2
2
+1 x 2
1
+0 x 2
0
= 0+32+0+0+0+2+0+0
= 34
Pr.80
Identity Code of the AC Motor Drive
Factory Setting: ##
Settings Read Only
 This parameter displays the identity code of the AC motor drive. The capacity, rated
current, rated voltage and the max. carrier frequency relate to the identity code. Users can
use the following table to check how the rated current, rated voltage and max. carrier
frequency of the AC motor drive correspond to the identity code.