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0
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Item
VR Check
Signal
Function
VR7
Offset
VR for adjusting position loop
off-
adjust-
set.
Position deviation is made
ment
zero with this VR.
4
Resol-
VR CH16 Amplitude VR for adjusting amplitude of sine
ver
10
adjust-
waves fed back from resolver.
adjust-
ment
Adjust to 12
+/-lVp-p.
ments
VR12 CH16 Amplitude VR for adjusting amplitude
fluctua-
fluctua- tion of resolver feedback.
tion
ad-
Adjustment is made with motor
justment driven.
VR16 CH27
Phase
For adjusting phase of resolver
CH28
adjust-
feedback with respect to resolver
ment
excitation.
5 ovc
VR15
VR for setting operating point of
adjust-
ment
OVC circuit.
6 Dither VR8 CH6 Dither
Dither is used to eliminate effects
adjust-
CH3l
amplitude of sticking or slipping (dither =
ment adjust-
250Hz sine waves).
ment
Normally VR is kept at MIN setting.
Note:
VRll,
VR13, VR14 and VR16 are adjusted by Mitsubishi and should
not be touched by the customer.
l
-21-
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