Omron VARISPEED L7

6-72
6
PG Option Cards
To have a more precise speed control the inverter can be equipped with a PG option card for the connection of
a pulse generator. Three different PG cards can be used, the PG-B2, the PG-X2 and the PG-F2 card. Refer to
page 2-24, Option Card Models and Specifications to see details.
 PG Setup
Related Parameters
Using PG Speed Control Card
There are three types of PG Speed Control Card that can be used in Closed Loop Vector control:
• PG-B2: A/B-phase pulse input, compatible with open collector outputs.
• PG-X2: A/B/Z-phase pulse input, compatible with line drivers (RS-422).
• PG-F2: Hiperface
y
/ EnDat encoder feedback.
For the mounting instructions, specifications and connection diagrams refer to page 2-24, Installing and Wir-
ing Option Cards.
Setting Number of PG Pulses (F1-01)
Set the number of PG (Pulse Generator/Encoder) pulses in pulses per revolution.
If a PG-F2 card is installed, the encoder type must be set in parameter n8-35 before the PG constant is set. The
possible set values for F1-01 depend on the n8-35 setting. The following resolutions can be set:
• for Hiperface
y
: 1024
• for EnDat: 512, 1024, 2048
Parameter
No.
Name
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
F1-01 PG constant
i
No No No
Q
1024
-
-
Q
2048
F1-05 PG rotation
i
No No No
Q
0
-
-
Q
1
F1-06 PG division rate (PG pulse monitor) 1 No No No A A
F1-21 Absolute encoder resolution 2 No No No No A
F1-22 Magnet position offset 60° No No No No A
IMPORTANT
If Open Loop Vector control for IM is used and a PG-B2/X2 card is installed, the speed detected by the
PG card is displayed in the monitor parameter U1-05. Therefore the PG constant has to be set in parame-
ter F1-01. The direction of the speed detection can be changed by parameter F1-05.
To change the U1-05 value to the internally calculated speed value remove the PG card.