NSK MEGATORQUE M-ESB-YSB2020AB300 - Page 331

— A-8 —
B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
Appendix 2: How to Check Motor Condition
Check resistance of resolver winding
2
2
3
3
t
t
y
y
p
p
e
e
2
2
5
5
t
t
y
y
p
p
e
e
2 Check resistance of resolver winding
Figure A-7: Check with the Cable
8 7 6 5 4 3 2 1
15 14 13 12 11 10 9
(Tester)
Resolver cable
Motor cable
Ω／
●●●●●●●
●●●●●●●●
Figure A-8: Check the Motor only
3 6 9
2 5 8
1 4 7
(Tester)
Connector lock
Ω／
36
25
14
Motor with
absolute sensor
Motor with
incremental sensor
Table A-11: Checking points and resistance specification: Motor with absolute position sensor
Cable connector Motor connector Result Acceptable value
INC-A
(8) « (4)
(INC-A) (COM)
(1) « (2)
(INC-A) (COM)
INC-B
(7) « (4)
(INC-B) (COM)
(4) « (2)
(INC-B) (COM)
INC-C
(15) « (4)
(INC-C) (COM)
(7) « (2)
(INC-C) (COM)
1. 3.1 W ±1W
2. Variation between
phases A, B, and C:
Maximum 1.0 W
ABS-A
(6) « (4)
(ABS-A) (COM)
(3) « (2)
(ABS-A) (COM)
ABS-B
(5) « (4)
(ABS-B) (COM)
(6) « (2)
(ABS-B) (COM)
ABS-C
(14) « (4)
(ABS-C) (COM)
(9) « (2)
(ABS-C) (COM)
1. 9.4 W ±2W
2. Variation between
phases A, B, and C:
Maximum 1.0 W
l For special winding or long cable over 4m, please consult with NSK.
Table A-12: Checking points and resistance specification: Motor with incremental position
sensor
Cable connector Motor connector Result Acceptable value
INC-A
(8) « (4)
(INC-A) (COM)
(1) « (4)
(INC-A) (COM)
INC-B
(7) « (4)
(INC-B) (COM)
(2) « (4)
(INC-B) (COM)
INC-C
(15) « (4)
(INC-C) (COM)
(3) « (4)
(INC-C) (COM)
1. 3.1 W ±1W
2. Variation between
phases A, B, and C:
Maximum 1.0W
l For special winding or long cable over 4m, please consult with NSK.