YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
229
Number of Possible Drives to Connect
Power Supply
Digital Inputs
24 V Output
Number of Drives
Internal power supply
(Drive 1)
Yes
(7-channel input)
Yes
1
No
13
No
Yes
4
No
17
External power supply
-
Different for different
external power supply
capacities
*1
This is when you use a maximum of 150 mA.
*2
24 V, 12 mA is necessary for each drive.
Use this formula to calculate the number of units to connect:
•
n: Number of units to connect
•
Io
max
: Maximum current that the power supply can supply (234 mA for the internal
power supply)
•
I
MFDI
: Current consumed per MFDI (6 mA)
•
n
MFDI
: Maximum number of MFDIs that can be activated at the same time (maximum
of 7-channel)
•
I
sensor
: Current externally supplied for sensor power supply (maximum of 150 mA)
•
I
safety
: Current consumed by Safe Disable terminals H1 and H2 (12 mA)
Note:
Round the values to the first decimal place.
■
Enabling and Disabling the Drive Output (“Safe Torque Off”)
Refer to
for an example of drive operation when the drive changes from
“
Safe
Torque Off
”
status to usual operation.