Yaskawa Z1000U - Manual (Page 164)

Setting Function Page
4 Output Voltage Bias –
5 Accel/Decel Time Gain –
6 DC Injection Braking Current –
7 Overtorque/Undertorque Detection Level –
8 Stall Prevention Level During Run –
9 Output Frequency Lower Limit Level –
B PID Feedback 164
Setting Function Page
C PID Setpoint 164
D Frequency Bias 164
E Motor Temperature (PTC Input) 164
F Through Mode 164
16 Differential PID Feedback 164
25 Secondary PI Setpoint 164
26 Secondary PI Feedback 164
Setting 0: Frequency Bias
The input value of an analog input set to this function will be added to the analog frequency reference value. When the frequency
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 of the analog inputs is used to supply the frequency reference.
By default, analog inputs A1 and A2 are set for this function. Simultaneously using A1 and A2 increases the frequency reference
by the total of all inputs.
Example: If the analog frequency reference from analog input terminal A1 is 50% and a bias of 20% is applied by analog input
terminal A2, the resulting frequency reference will be 70% of the maximum output frequency.
Setting 1: Frequency Gain
The input value of an analog input set to this function will be multiplied with the analog frequency reference value.
Example: If the analog frequency reference from analog input terminal A1 is 80% and a gain of 50% is applied from analog
input terminal A2, the resulting frequency reference will be 40% of the maximum output frequency.
Setting 2: Auxiliary Reference 1
Sets the auxiliary frequency reference 1 when multi-step speed operation is selected. Refer to Multi-Step Speed Selection on
page 157 for details.
Setting 3: Auxiliary Reference 2
Sets the auxiliary frequency reference 2 when multi-step speed operation is selected. Refer to Multi-Step Speed Selection on
page 157 for details.
Setting B: PID Feedback
Supplies the PID feedback value. This setting requires PID operation to be enabled in b5-01.
Setting C: PID Setpoint
Supplies the PID setpoint value and makes the frequency reference selected in parameter b1-01 no longer the PID setpoint.
PID operation to be enabled in b5-01 to use this setting.
Setting D: Frequency Bias
The input value of an analog input set to this function will be added to the frequency reference. This function can be used with
any frequency reference source.
Setting E: Motor Temperature
In addition to motor overload fault detection oL1, it is possible to use a PTC (Positive Temperature Coefficient) thermistor
for motor insulation protection.
Setting F: Through Mode
When set to F, an input does not affect any drive function, but the input level can still be read out by a PLC via APOGEE
FLN, BACnet, MEMOBUS/Modbus, or Metasys N2 communications.
Setting 16: Differential PID Feedback
If an analog value is set for this function, the PID controller is set for differential feedback. The difference of the PID feedback
input value and the differential feedback input value builds the feedback value used to calculate the PID input.
Setting 25: Secondary PI Setpoint
10 V = S3-02 (Maximum Output Frequency).
Setting 26: Secondary PI Feedback
10 V = S3-02 (Maximum Output Frequency).
4.12 Advanced Drive Setup Adjustments
164 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual