YASKAWA
SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
213
Note:
When you change
b5-38
and
b5-46
, the drive will not automatically convert the parameters in
For example, when you set
YA-01 = 70.0 [PSI]
and change these parameters:
•
b5-46
from
1 [PSI]
to
8 [Bar]
•
b5-38
from
145.0
to
10.0
The drive changes only the unit setting and
YA-01
will be
70.0 [Bar]
. When the setpoint value after you change
b5-38
and
b5-46
is more than
b5-38
, the drive internally limits the setpoint value to 200% of
b5-38
. The drive regards the
YA-01
setting as
20.0 [Bar]
.
Table 5.26 Parameters Set by b5-38 and b5-46
Parameter Groups
No.
b5
b5-71 [Min PID Transducer Scaling]
S5
•
S5-06 [HAND Setpoint]
•
S5-12 [HAND Setpoint 2]
Y1
•
Y1-04 [Sleep Wake-up Level]
•
Y1-08 [Low Feedback Level]
•
Y1-11 [High Feedback Level]
•
Y1-14 [High Feedback Hysteresis Level]
•
Y1-15 [Maximum Setpoint Difference]
Y2
•
Y2-05 [Sleep Boost Level]
•
Y2-08 [Delta Feedback Drop Level]
•
Y2-25 [Anti-No-Flow Release Level]
Y4
•
Y4-01 [Pre-Charge Level]
•
Y4-18 [Differential Level]
•
Y4-37 [Pressure Reached Hysteresis Lvl]
YA
•
YA-01 [Setpoint 1]
•
YA-02 [Setpoint 2]
•
YA-03 [Setpoint 3]
•
YA-04 [Setpoint 4]
Table 5.27 Monitors Set by b5-38 and b5-46
Monitor Groups
No.
U1
•
U1-60 [System Setpoint]
•
U1-61 [System Feedback]
U5
•
U5-01 [PID Feedback]
•
U5-04 [PID Setpoint]
•
U5-79 [PI Feedback Backup]
•
U5-81 [Differential PI Fdbk]
•
U5-99 [PID Setpoint Command]
Full-Scale of the PID Analog Input Signals
The full-scale of the analog signals listed in this table go from
b5-71 [Min PID Transducer Scaling]
to
b5-38 [PID
User Unit Display Scaling]
.
H3-xx Setting
MFAI
B
PID Feedback
C
PID Setpoint
24
PID Feedback Backup
H3-xx Setting
MFAI
2B
Emergency Override PID Feedback
2D
Differential Level Source
2E
HAND Frequency Ref or Setpoint
*1
Only when
b5-01 = 1 [PID Mode Setting = Standard]
and
S5-03 = 1 [HAND Mode PID Selection = Enabled]
Note:
When you set
b5-71 < 0
, the drive appropriately scales the setpoint and feedback values of the drive, but internally limits to 0 when the
reported value from the transducer is negative.
Custom Units
These selections are available for custom system units:
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