Instruction manual 91/121 V6.3
Commissioning
Speed Demand
It indicates the percentage value of the reference that exits the ramp block and enters the velocity loop as a speed setpoint. For more
information see drawing 20 on page 51 with the speed loop scheme.
Speed Error
It indicates the percentage value of the difference between the speed set point and the actual motor speed.
Speed Feedback %
It indicates the percentage value of the actual motor speed relative to the maximum set on the parameter ” Maximum speed“ (see page
37).
Speed Feedback RPM
Indicates the value in revolutions per minute of the actual motor speed.
Posit Feedback
Indicates the position in degrees of the transducer used. This menu is displayed only with transducers: TTL encoder, Resolver, Sin-
Cos, EnDat.
NOTE:
using multipolar resolvers (i.e. with 4 or more poles), the electrical position of the resolver is displayed in this menu, so
using for example a resolver with 6 poles (i.e. 3 polar pairs) will read the same position at 3 different motor rotation points.
Motor torque
Indicates the percentage value of the torque delivered by the motor. A value very close to 100 % indicates that the load on the motor is
excessive and that it must be reduced in order not to lose speed.
DC Bus Voltage
Indicates the voltage in Volt of the DC BUS inside the drive. This value depends on the three-phase supply voltage (if powered on ter -
minals L1, L2, L3) and can be calculated using the following formula:
V
BUS
=
V
LINE
⋅
√
2
V
line
= Power supply voltage on L1, L2, L3 (Vac)
V
bus
= DC BUS voltage (on DC+ and DC- terminals) (Vdc)
Heat Sink Temp
Indicates the temperature in degrees centigrade of the heat sink inside the drive. This temperature must be below 75 °C otherwise the
drive goes in stop indicating the anomaly on the display. If the temperature tends to be too high, the causes may be due to lack of
ventilation.
Capacitor Temp
Indicates the temperature in degrees centigrade of the capacitors inside the drive. This temperature must be below 60 °C otherwise the
drive goes in stop indicating the anomaly on the display. If the temperature tends to be too high, the causes may be due to the lack of
ventilation or the need to mount an additional set of external capacitors due to the type of use done with the drive (ALTER module
13/007).
DSP Temp
Indicates the temperature in degrees centigrade of the DSP that controls the drive. This temperature must be below 70 °C otherwise
the component can be damaged. In case of higher temperature, contact the ALTER Technical Office.
Hall sect status
This menu is only visible using as a speed transducer a TTL encoder, a brushless Tacho-generator or 10V (with optional board
01/333); it indicates the current state of signals received from Hall sectors mounted inside the transducer.
3 characters are displayed with the following meaning in the displayed order: SE3 | SE2 | SE1. The status displayed can be 0 or 1
based on the logical status received from the relevant hall sector.
NOTE:
the situation in which “000” or “111” is displayed indicates an error condition in the signals received, because it is not
acceptable to have all 3 1 or 0 sectors.
Transducer board
Menu group grouping some parameters to control the optional transducer board type and the status of the connected transducer.
Transducer board for
Indicates the type of transducer that can be connected to the X14 connector.
Firmware version major
Larger version number of the optional transducer card that is installed inside the drive.
Firmware version minor
Minor version number of the optional transducer card that is installed inside the drive.
Resolver signal
Indicates the status of the voltage signal coming from the connected resolver on X14. The available statuses are:
Alter Elettronica s.r.l.
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