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7. Wiring and Connection
7 - 17
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.
When using an internal power supply
When using an external power supply
Contactor
POINT
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
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.
No. Abbrev. Parameter name Explanation
SV033 SSF2 Servo function
selection 2 F EDCBA98765 4 3 2 10
zup dis nfd2 nf3 nfd1
bit Explanation
A Select the digital signal input.
B
dis
00: DI not used 10: Reserved
01: Contactor B contact input 11: Reserved
MDS-R-V1/V2
10 VDD
5 COM
19 DI
3 SG
CN9
4.7k
24VDC
L1
L2
L3
B contact
(Note) Refer to the "POINT"
below.
Direction of
current
MDS-R-V1-V2
10 VDD
5 COM
19 DI
3 SG
CN9
27VDC
or less
Contactor
Direction of
current
4.7k
24VDC
L1
L2
L3
B contact
(Note) Refer to the "POINT"
below.