Yaskawa iQpump Controller User Manual - Manual (Page 113)

Pump Tuning
YASKAWA TM.iQp.06 iQpump Controller User Manual 113
Figure 5.24
Figure 5.39 Connection of a 3-Wire 4~20 mA Feedback Device (H3-08 = 2)
The H3-08 parameter (Terminal A2 Signal Level) allows the programmer to specify the signal that will be applied to the A2 analog input.
The A2 analog input can accept either a 0–10 Vdc or 4 ~ 20 mA signal as a reference. The iQpump drive also has a DIP switch (S1) on
the removable terminal board that must be set for the proper reference signal into the A2 analog input. The S1-2 DIP switch setting
determines the internal resistance of the A2 input while parameter H3-08 determines how the iQpump drive interprets the measured
signal.
Figure 5.25
Figure 5.26
Figure 5.40 DIP Switch S1
Table 5.4 DIP Switch S1
Name Function Setting
S1-1 RS-485 and RS-422 terminating resistance
OFF: No terminating resistance
ON: Terminating resistance of 110
Ω
S1-2 Input method for analog input A2
OFF: 0 ~ 10 V (internal resistance: 20 k Ω)
ON: 4 ~ 20 mA (internal resistance: 250 Ω) (Default)
S1
O
1
Terminating
resistance
DIP Switch S1-1 located on
terminal board.
2
1