Monitor Of Contactor Operation - Mitsubishi Electric MELDAS MDS-R Series Specifications And Instruction Manual

7-7-5 Monitor of contactor operation

The contactor operation can be monitored by inputting the contactor B contact to the MDS-R-V1/V2 DI
signal and setting the parameter.
The contactor error alarm (5F) will occur if the contactor turns ON during READY OFF, or if the
contactor turns OFF during READY ON.
No. Abbrev.
SV033 SSF2
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MDS-R-V1/V2
24VDC
4.7k
MDS-R-V1-V2
24VDC
4.7k
When the contactor or relay contact is used with a minute load, the contact's
contactor resistance will increase, resulting in a higher fault rate. Add
appropriate resistors so that the proper current is passed to the contactor in
POINT
use, and then flow the current to the B contact.
A current of approx. 5mA (at 24VDC) will flow if a resistor is not added.
Parameter name
Servo function
selection 2
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7. Wiring and Connection
(Note) Refer to the "POINT"
below.
L1
L2
L3
CN9
Direction of
10 VDD
current
5 COM
19 DI
3 SG
(Note) Refer to the "POINT"
below.
L1
L2
L3
CN9
Direction of
10 VDD
current
5 COM
19 DI
3 SG
27VDC
or less
F E D C B A 9
zup dis
bit
A Select the digital signal input.
dis
B 00: DI not used
01: Contactor B contact input
7 - 17
Contactor
B contact
Contactor
B contact
Explanation
8 7 6 5 4 3
nfd2 nf3
Explanation
10: Reserved
11: Reserved
2 1 0
nfd1