5.7 H: Terminal Functions
Setting 0: Speed reference bias
The input value o f an analog input set to this function will be added to the analog speed reference value. When the speed
reference is supplied by a different source other than the analog inputs, this function will have no effect. Use this setting
also when only one o f the analog inputs is used to supply the speed reference.
By default, analog inputs A1 and A2 are set for this function. Using A1 and A2 at the same time increases the speed
reference by the total of all inputs.
Example: If the analog speed reference from analog input terminal A1 is 50% and a bias o f 20% is applied by analog
input terminal A2, the resulting speed reference will be 70% of the maximum output speed.
Setting 2: Auxiliary speed reference 1 (used as a second speed reference)
Sets the auxiliary speed reference 1 when multi-step speed operation is selected. Refer to
Speed Selection Using Digital
Inputs (b1-01 = 0) on page 106
for details.
Setting 3: Auxiliary speed reference 2 (used as a third speed reference)
Sets the auxiliary speed reference 2 when multi-step speed operation is selected. Refer to
Speed Selection Using Digital
Inputs (b1-01 = 0) on page 106
for details.
Setting 14: Torque compensation (load cell input)
This selection allows an analog signal to the input terminal adjust the amount o f torque compensation to handle and
unbalance at start when elevators sensors indicate that a large load has been added to the car. This helps to minimize
shock and jerking at start. Setting 14 requires an analog signal from a load sensor. For more information on torque
compensation, refer to
Adjusting the Torque Compensation at Start on page 112.
Setting 1F: Not used (Through mode)
When set to 1F, an input does not affect any drive function, but the input level can still be read out by a PLC via a
communication option or MEMOBUS/Modbus communications.
♦ H4: Multi-Function Analog Outputs
These parameters assign functions to analog output terminals FM and AM for monitoring a specific aspect o f drive
performance.
■ H4-01, H4-04: Terminal FM, AM Monitor Selection
Sets the desired drive monitor parameter U D -П П to output as an analog value via terminal FM and AM. Refer to
U:
Monitors on page 355
for a list o f all monitors. The “Analog Output Level” column indicates if a monitor can be used
for analog output.
Example: Enter “ 103” for U1-03.
No.
Name
Setting Range
Default
H4-01
Terminal FM Monitor Selection
000 to 999
102
H4-04
Terminal A M Monitor Selection
000 to 999
103
A setting o f 031 or 000 applies no drive monitor to the analog output. With this setting, terminal functions as well as FM
and AM output levels can be set by a PLC via a communication option or MEMOBUS/Modbus (through mode).
■ H4-02, H4-03: Multi-Function Analog Output Terminal FM Gain and Bias
H4-05, H4-06: Terminal AM Gain and Bias
Parameters H4-02 and H4-05 set the terminal FM and AM output signal level equal to 100% of the monitor (gain).
Parameters H4-03 and H4-06 set the bias added to the monitor output for terminals FM and AM. Both are set as a
percentage, where 100% equals 10 Vdc analog output. The output voltage o f both terminals is limited to 10 Vdc.
Select an output signal range between 0 to +10 Vdc or -10 to +10 Vdc using parameters H4-07 and H4-08.
Figure 5.31
illustrates how gain and bias settings work.
No.
Name
Setting Range
Default
H4-02
Terminal FM Gain
-999.9 to 999.9%
100.0%
H4-03
Terminal FM Bias
-999.9 to 999.9%
0.0%
H4-05
Terminal A M Gain
-999.9 to 999.9%
50.0%
H4-06
Terminal A M Bias
-999.9 to 999.9%
0.0%
186
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
