Lenze 931W - Manual (Page 31)

Software implementation and parameter setting
Service menu
Software version
5

31 HB 13.0001-EN 3.0
Resolver offset
By orientating the resolver, the angle which is stored as the offset angle of the
motor-resolver combination in the axis controller can be calculated according to the
number of motor and resolver pole pairs. The value that is determined is considered with
regard to the rotary field generation and is device-defined. In case of operating errors or
replacement of the electronics, it can also be re-entered manually. See also chapter
”Resolver adjustment”.
Resolver adjustment
By using this button, the resolver is adjusted, which is a calculation of the angle between
the rotary field indicator and resolver indicator in increments and a software adjustment.
In doing this, the motor axis is gradually moved for adjustment.

Note!
For adjusting the resolver, the motor has to be in a load-free state, which for a
required resolver adjustment could possibly require a dismounting of the
motor from an existing system.
As the resolver adjustment is already effected ex works, this button as far as possible
should not be used. Particular care is to be taken when loading a configuration in the
service mode - for this, see also the chapter ”Menu bar” ( 16).
Current controller response time
The current controller response time describes the adjustable value of the phase shift
between motor current and motor voltage. The current controller response time serves to
compensate the phase shift of the current caused by the motor inductance. The following
effects can be derived from the amount of the value that is set here:
0 μs No effect
200 - 600 μs The current is applied so that the phase shift caused by the inductance is compensated by
the current controller response time selected. The current controller response time is to be
determined in a speed-dependent and torque-dependent manner.
Value too high In case of settings that are too high, the motor utilisation is degraded, which can be seen by a
no-load current and rated current that that is too high.
As astandard value, asetting of 250 to 350 μs (basic setting:350 μs)is recommended. Only
for very high motor inductances, a higher setting of the current controller response time
is reasonable.
5.3.2 Software version
Via this field, the firmware version of the motor can be viewed. This information, as well
as the device identification, is also important for issues of support. Furthermore the
firmware version determines the function. For the use on the Profibus-DP or CAN bus there
are different firmware versions. In case of doubt, however, the Lenze support hotline
should be notified.
5.3.3 Operating hours
Here the operating hours of the inverter that have already beenachieved are entered inthe
format of hours: minutes.