Yaskawa AC Drive Z1000 AC Drive HVAC Fan - Manual (Page 57)

Table 1.14 Multi-Step Speed Reference and Terminal Switch Combinations
Reference
Multi-Step Speed
H1-oo = 3
Multi-Step Speed 2
H1-oo = 4
Jog Reference
H1-oo = 6
Frequency Reference 1 (set in b1-01) OFF OFF OFF
Frequency Reference 2
(d1-02 or input terminal A1, A2)
ON OFF OFF
Frequency Reference 3
(d1-03 or input terminal A1, A2)
OFF ON OFF
Frequency Reference 4 (d1-04) ON ON OFF
Jog Frequency Reference (d1-17) <1> − − ON
<1> The Jog frequency overrides all other frequency references.
d1-04
d1-17
ON
ON
ON
ON
ON
Multi-step Speed Ref. 2
Jog Reference
Time
Multi-step Speed Ref. 1
Frequency
reference
d1-01
(A1)
d1-02
(A2)
d1-03
FWD (REV) Run/Stop
Figure 1.24 Preset Reference Timing Diagram
u d2: Frequency Upper/Lower Limits
Upper and lower frequency limits prevent motor speed from going above or below levels that may cause resonance or
equipment damage.
n d2-01: Frequency Reference Upper Limit
Sets the maximum frequency reference as a percentage of the maximum output frequency. This limit applies to all frequency
references.
Even if the frequency reference is set to a higher value, the drive internal frequency reference will not exceed this value.
No. Parameter Name Setting Range Default
d2-01 Frequency Reference Upper Limit 0.0 to 110.0% 100.0%
n d2-02: Frequency Reference Lower Limit
Sets the minimum frequency reference as a percentage of the maximum output frequency. This limit applies to all frequency
references.
If a lower reference than this value is entered, the drive will run at the limit set to d2-02. If the drive is started with a lower
reference than d2-02, it will accelerate up to d2-02.
No. Parameter Name Setting Range Default
d2-02 Frequency Reference Lower Limit 0.0 to 110.0% 0.0%
1.4 d: Reference Settings
YASKAWA ELECTRIC SIEP YAIZ1U 03A YASKAWA AC Drive – Z1000 Programming Manual 57
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Parameter Details