Kollmorgen BDS5, Installation And Setup Manual, Page: 57 / 150

BDS5 C
HAPTER
2 - I
NSTALLATION
2-21
2.7.9 Checking the Resolver
The BDS5 provides a feedback loss circuit which is
designed to detect broken wires; it can detect
relatively few wiring errors. You should use the
following procedure to verify feedback circuit.
The feedback loss circuit is
designed to detect broken
wires. In general, it does not
detect wiring errors.
Turn the motor shaft by hand until the R/D converter
output is within the ranges listed below. You can
display the R/D output by repeatedly typing:
P PRD
The standard R/D resolution is 12 bits. The resolution
of your BDS5 is listed as part of the model number,
which is shown on the front of the drive and described
at the beginning of this chapter.
Rotate the motor shaft by hand until PRD is in the
target range listed below:
Table 2.7. Target of PRD vs. R/D
Resolution
R/D Resolution 12-Bit 14-Bit 16-Bit
Target Minimum
Target Maximum
0
250
0
1000
0
4000
Now rotate the motor shaft approximately 1/4
revolution CLOCKWISE. PRD should now fall in the
range listed below:
Table 2.8. Target of PRD Versus R/D
Resolution After Clockwise 1/4 Revolution
R/D Resolution 12-Bit 14-Bit 16-Bit
Target Minimum
Target Maximum
800
1300
3500
5500 12500
22500
If PRD does not fall into the range as listed above,
then either the resolver is improperly wired or the
feedback circuitry is not functioning correctly. The
first step is to check the cable.
2.7.10 Checking the Resolver Cable
Follow this procedure if you are experiencing
problems with the resolver. Disconnect the resolver
cable at both ends and use an ohm meter to verify this
resolver cable wiring table:
Table 2.9. Goldline Resolver Cable Wiring
BDS5
C3
Signal Resolver
Connector
1 Sine Low B
2 Shield No Connect
3 Cosine Low C
4 Reference High F
5 Shield No Connect
6 Not Used No Connect
7 Sine High A
8 Shield No Connect
9 Cosine High D
10 Reference Low E
11 Shield No Connect
12 Not Used No Connect
Flying Lead Thermostat (Black) T
Flying Lead Thermostat (Black) U
Flying Lead Optional Brake (Blue) N
Flying Lead Optional Brake (Blue) P
Flying Lead Optional Tach (Black) R
Flying Lead Optional Tach (White) S
The following procedure uses
an oscilloscope to measure
the amplitude of signals with
a frequency of 8 kHZ. Some
digital voltmeters can
measure the amplitude of
signals at high frequencies
(like 8 kHZ). However, many
meters are designed to read
60 Hz and cannot be relied
upon to read 8 kHZ signals.
WARNING
NOTE