Yaskawa PG-X2 - Manual (Page 5)

Yaskawa Electric America, Inc. – www.drives.com
IG.AFD.60, Page 5 of 8
Date: 07/01/04, Rev:04-07
Encoder Feedback Option Card
PG-X2
Figure 5. Using Separate PG Power Supply
14. Application: If the encoder’s power requirement is greater than 200mA, provide a separate power supply source as
shown in Figure 5. If the momentary power loss ride thru function of the drive is to be used, include a backup capacitor in the
PG power wiring or take other necessary precautions.
PG ENCODER
1
2
3
IP12
(2)
4
5
6
7
8
9
10
12V
0V
P
P
PG-X2 Card TA1
TA3
0V 12V
PG Power Supply
AC
+
*
* Backup capacitor, for momentary
power loss recovery function
IG
IP5
A (+)
A (–)
B (+)
B (–)
Z (+)
Z (–)
IG
P
15. Maximum Input Frequency: The maximum input frequency of the PG-W2 card is 300kHz. To find the output frequency
of the encoder (PG) in Hertz, use the following formula. Please make sure a 20% safety margin is built-in.
f
PG
(Hz) = Maximum Motor Speed (RPM) x Encoder PPR (Pulses/Rev)
60