YASKAWA SGMJV - Page 135

5 Operation
5.3.5 Zero Clamp Function
5-28
(1) Factory-set Sequence Signal Allocations (Pn50A.0 = 0)
When Pn000.1 is set to A, the control method becomes "speed control <=> speed control with zero clamp
function" and the /P-CON signal is used as a zero clamp signal.
(2) Changing Sequence Signal Allocations for Each Signal (Pn50A.0 = 1)
Use the /ZCLAMP signal when switching to zero clamp operation.
To use the /ZCLAMP signal, the input signal must be allocated. For details, refer to 3.3.1 Input Signal Alloca-
tions.
To use the zero clamp function, set Pn000.1 to 0, 3, 4, 5, 6, 7, 9 or A.
Type
Connector
Pin Number
Setting Meaning
Input /P-CON
CN1-41
[Factory setting]
ON
If the input voltage of the speed reference (V-REF) drops
below the set speed in the zero clamp level (Pn501), the zero
clamp function will turn ON.
OFF Turns OFF the zero clamp function.
Parameter Control Method When Enabled Classification
Pn000 n.A
Speed control (analog reference) <=>
Speed control with zero clamp function
After restart Setup
Type
Connector
Pin Number
Setting Meaning
Input /ZCLAMP
CN1-
Must be allocated.
ON
The zero clamp function will be turned ON if the input volt-
age of the speed reference (V-REF) drops below the set speed
in the zero clamp level. (Pn501)
OFF Turns OFF the zero clamp function.
Parameter Control Method
Input Signal
Used
When Enabled Classification
Pn000
n.0 Speed control (analog reference) /ZCLAMP
After restart Setup
n.3
Internal set speed control (contact ref-
erence)
/ZCLAMP,
SPD-A,
SPD-B,
SPD-D,
C-SEL
n.4
Internal set speed control (contact ref-
erence) <=> Speed control (analog
reference）
/ZCLAMP,
SPD-A,
SPD-B,
SPD-D,
C-SEL
n.5
Internal set speed control (contact ref-
erence) <=> Position control (pulse
strain reference)
/ZCLAMP,
SPD-A,
SPD-B,
SPD-D,
C-SEL
n.6
Internal set speed control (contact ref-
erence) <=> Torque control (analog
reference)
/ZCLAMP,
SPD-A,
SPD-B,
SPD-D,
C-SEL
n.7
Position control (pulse train reference)
<=> Speed control (analog reference)
/ZCLAMP,
C-SEL
n.9
Torque control (analog reference) <=>
Speed control (analog reference)
/ZCLAMP,
C-SEL
n.A
Speed control (analog reference) <=>
Speed control with zero clamp
function
/ZCLAMP,
C-SEL