YASKAWA SGD7S series User Manual

9.3 Monitoring Machine Operation Status and Signal Waveforms
9.3.3 Using a Measuring Instrument
9-12
Changing the Monitor Factor and Offset
You can change the monitor factors and offsets for the output voltages for analog monitor 1
and analog monitor 2. The relationships to the output voltages are as follows:
The following parameters are set.
Adjusting the Analog Monitor Output
You can manually adjust the offset and gain for the analog monitor outputs for the torque refer-
ence monitor and motor speed monitor.
The offset is adjusted to compensate for offset in the zero point caused by output voltage drift
or noise in the monitoring system.
The gain is adjusted to match the sensitivity of the measuring system.
The offset and gain are adjusted at the factory. You normally do not need to adjust them.
Pn550
Analog Monitor 1 Offset Voltage
Setting Range Setting Unit Default Setting When Enabled Classification
-10,000 to 10,000 0.1 V 0 Immediately Setup
Pn551
Analog Monitor 2 Offset Voltage
Setting Range Setting Unit Default Setting When Enabled Classification
-10,000 to 10,000 0.1 V 0 Immediately Setup
Pn552
Analog Monitor 1 Magnification
Setting Range Setting Unit Default Setting When Enabled Classification
-10,000 to 10,000 ×0.01 100 Immediately Setup
Pn553
Analog Monitor 2 Magnification
Setting Range Setting Unit Default Setting When Enabled Classification
-10,000 to 10,000 ×0.01 100 Immediately Setup
• Example for Setting the Item to Monitor to the Motor Speed (Pn006 = n.00)
= (-1) ×
×+
Analog Monitor 1 Signal
Selection (Pn006 = n.XX)
Analog Monitor 1
Magnification (Pn552)
Analog Monitor 1
Offset Voltage (Pn550)
Analog monitor 1
output voltage
= (-1) ×

+
Analog Monitor 2 Signal
Selection (Pn007 = n.XX)
Analog Monitor 2
Magnification (Pn553)
Analog Monitor 2
Offset Voltage (Pn551)
Analog monitor 2
output voltage
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque
Example
+6 V
-6 V
-600
+6 00
+8 V
-8 V
-800
+800
+6 V
-6 V
-6000
+ 6000
When Pn552 = 100 (Setting Unit: ×0.01) When Pn552 = 1,000 (Setting Unit: ×0.01)
Analog monitor output voltage (V)
Motor speed
(min
-1
)
Note: The effective linearity range is ±8 V.
The resolution is 16 bits.
Approx. +10 V
Approx. -10 V
Analog monitor output voltage (V)
Motor speed
(min
-1
)

YASKAWA SGD7S series Specifications

General

Series	SGD7S
Safety	STO (Safe Torque Off)
Humidity	90% RH or less (non-condensing)
Control Method	PWM Control
Communication	EtherCAT, MECHATROLINK-III, MECHATROLINK-II
Output Power	0.1 kW to 15 kW
Feedback System	Incremental encoder, Absolute encoder
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Overheating, Encoder Error
Ambient Temperature	0 to 55°C
Storage Temperature	-20 to 85°C
Vibration Resistance	5.9 m/s²
Installation	Panel mounted
Certifications	CE, UL, cUL