Yaskawa AC Drive Z1000 Bypass Technical Manual - Manual (Page 163)

n H3-14: Analog Input Terminal Enable Selection
When one of the multi-function digital input parameters is set for “Analog input enable” (H1-oo = C), the value set to H3-14
determines which analog input terminals are enabled and which terminals are disabled when the input is closed. All analog
input terminals will be enabled all of the time if H1-oo is not set to C.
No. Name Setting Range Default
H3-14 Analog Input Terminal Enable Selection 1 to 3 2
Setting 1: A1 Only Enabled
Setting 2: A2 Only Enabled
Setting 3: Terminals A1 and A2
n H3-16 and H3-17: Terminal A1/A2 Offset
Set the offset level of the selected input value to terminals A1 or A2 that is equal to 0 Vdc input. These parameters rarely
require adjustment.
No. Name Setting Range Default
H3-16 Terminal A1 Offset -500 to 500 0
H3-17 Terminal A2 Offset -500 to 500 0
n Multi-Function Analog Input Terminal Settings
See Table 5.22 for information on how H3-02 and H3-10 determine functions for terminals A1 and A2.
Note: The scaling of all input functions depends on the gain and bias settings for the analog inputs. Set these to appropriate values when selecting
and adjusting analog input functions.
Table 5.22 Multi-Function Analog Input Terminal Settings
Setting Function Page
0 Frequency Bias 163
1 Frequency Gain 163
2 Auxiliary Frequency Reference 1 163
3 Auxiliary Frequency Reference 2 164
4 Output Voltage Bias 164
5 Accel/Decel Time Gain 164
6 DC Injection Braking Current 164
7 Overtorque/Undertorque Detection Level 164
8 Stall Prevention Level During Run 164
9 Output Frequency Lower Limit Level 165
Setting Function Page
B PI Feedback 165
C PI Setpoint 165
D Frequency Bias 165
E Motor Temperature (PTC Input) 165
F Through Mode 165
16 Differential PI Feedback 165
1F <1> HAND Reference 165
25 Secondary PI Setpoint 165
26 Secondary PI Feedback 165
<1> Setting 1F is “HAND Reference” in bypass controller software versions VST800298 and later. Setting 1F is “Not Used (Through Mode)” in bypass
controller software versions VST800297 and earlier.
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 142 for details.
5.8 H: Terminal Functions
YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual 163
5
Programming