Fuji Electric FRENIC-Lift LM2 Series - Page 11

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5.4.1 Analog inputs
Using analog inputs, the motor speed and the torque bias can be set without steps (stageless). Analog command
signals can be either voltage or current on terminal [V2]; selection is done by means of slide switch SW4.
Terminal [NTC] can be used to connect a PTC/NTC thermistor for motor overheat protection. Function is
disabled in factory setting, for additional information refer to description of parameter H26 in Reference Manual.
5.4.2 Digital inputs
Digital inputs can operate either in NPN or PNP logic. The selection of the logic is set on slide switch SW1
located on the control board. Factory setting is PNP (Source) Logic. Description of each input terminal function
can be found on table 5.4.
Table 5.4: Description of digital inputs (optocoupled inputs).
On below figures, different input configuration examples are shown. On below images different connection
examples using PNP Logic are shown:
FRENIC-Lift (LM2)
X1 FWD PLC (+24 V)
Lift controller
Up direction
Speed 1
Figure 5.4: Connection using free potential contacts of lift controller.
FRENIC-Lift (LM2)
X1 FWD CM
Lift controller
Up direction
Speed 1
0 VDC
+24 VDC
24 VDC
Figure 5.5: Connection using external power supply.
As explained in table 5.4, even STO function is not used, a proper usage of EN terminals is recommended. In
figure 5.6 an example of wiring is shown.
Terminal
Function description of the digital inputs
FWD
Clockwise rotation of the motor seen from the shaft side.
Depending on the mechanical set up this can be UP or DOWN direction of the car.
REV
Anticlockwise rotation of the motor seen from the shaft side.
Depending on the mechanical set up this can be DOWN or UP direction of the car.
CM
Common 0 VDC.
X1 to X3
Digital inputs for speed selection. From binary combination, 7 different speeds can be selected.
X4 to X7
The default setting function of these terminals is not explained on this guide. For additional
information refer to RM.
X8
Configured from factory as “BATRY” for Battery or UPS operation (Rescue operation).
EN1 &
EN2
Inverters enable terminals (IGBT drives habilitation).
These terminals complies with the STO SIL 3 function described in the standard 61800-5-2,
therefore if properly used, these terminals can be used to substitute the two contactors between the
inverter and the motor (as described on EN81-20:2014 5.9.2.5.4 d). For additional information
regarding STO function, refer to “AN-Lift2-0001” document.
Even STO function is not used, the correct usage of these terminals is recommended. An incorrect
usage of these terminals can deal to inverter trips (OCx trip) or even to the destruction of it. For
additional information, refer to figure 5.6.
The logic of these terminals is fixed to SOURCE. It does not depend on SW1 configuration.