YASKAWA H6B1A002, Technical Reference

Page: 188 / 794

5.2 b: Application
188 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
• Current Input
Refer to
Table 5.19 to use a current signal input to one of the MFAI terminals.
Table 5.19 Frequency Reference Current Input
Terminal Signal Level
Parameter Settings
Note
Signal Level Selection Gain Bias
Bypass MFAI 4 - 20 mA Z2-30 = 2 Z2-32 Z2-33 Set Jumper Switch S2 to
“
I
”
for current
input.
0 - 20 mA Z2-30 = 3
Figure 5.2 Example of Setting the Frequency Reference with a Current Signal to the Bypass MFAI
Changing between Master and Auxiliary Frequency References
2 : Serial Communications
The bypass uses serial communications to enter the frequency reference.
3 : Option PCB
The bypass uses a communications option card or input option card connected to the bypass control board to enter the
Run command.
Note:
If b1-01 = 3 , but you did not connect a communications option card, oPE05 [Run Cmd/Freq Ref Source Sel Err] will flash on the keypad.
■
b1-02: Run Command Selection 1
No.
(Hex.)
Name Description
Default
(Range)
b1-02
(0181)
Run Command Selection 1 Sets the input method for the Run command. 7
(0 - 9)
0 : Keypad
The bypass uses the keypad to enter the Run command.
Note:
The on the keypad is on while keypad is the Run command source.
1 : Digital Input
The bypass uses the control circuit terminals to enter the Run command. Select the input method for the Run
command with an
Z2-xx parameter.
Set Z2-xx = 21, 37 [Run (AUTO), Run Reverse (AUTO)] .
• 2-wire Sequence
When you set
A1-03 = 2220 [Initialize Parameters = 2-Wire Initialization] , it will initialize the bypass and set Z2-
01 = 21 [Run FWD] . Run Reverse is not set by default.
2 : Serial Communications
The bypass uses serial communications to enter the Run command.
3 : Option PCB