3F88L-CR002C Omron, 3F88L-CR002C Datasheet - Page 118

• Manufacturer Part Number: 3F88L-CR002C
• Description: CABLE RESOLVER FOR RS17/T 2M
• Manufacturer: Omron

Specifications of 3F88L-CR002C

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 3F88LCR002C

Operation
Advance Angle Compensation Function Processing
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S For example, assume that the advance angle compensation value 3 is set to “30” and the result of
S The processing is the same when the advance angle amount is to be reduced. For example, if the
In this way, the present angles do not continue in numerical order from the angle where the present
angle and the advance angle compensation value 3 coincide. The following points must be taken
into consideration, therefore, when using the advance angle compensation function.
S Set advance angle compensation value 3 in a section where the cam output does not change. (Set
S As much as possible, do not operate the machinery while the advance angle amount is changing
S If the machinery must be operated during acceleration or deceleration, change the system set-
Note
Note
the advance angle calculation has changed from “0” to “1.” This calculation result is reflected, not
immediately but when the present angle reaches “30.” In other words, when the present angle “30”
is detected, the present angle is compensated to “31.” When this compensation is performed,
therefore, present angle “30” is skipped. (An operation example is shown below.)
advance angle amount changes from “10” to “5,” the Resolver angle, advance angle amount, and
present angles will be as shown below. In this instance, the present angles “25” through “29” are
repeated.
in the middle of a section where ON or OFF status continues for a long time.)
(accelerating or decelerating.) (Start real operation after the speed has stabilized.)
tings to minimize the change in advance angle amounts as much as possible. (Consider gentle
acceleration or deceleration and minimizing the change in advance angle amount or speeding up
the peripheral devices (or slowing down the drive axle side) and reducing the size of the com-
pensation amount itself.)
Resolver angle
Advance angle amount
Present angle
Resolver angle
Advance angle amount
Present angle
Adds the advance angle amount
Calculates and displays the
1. Resolver angle detection and Resolver speed detection are performed in different cycles.
2. The “Resolver angle” is the angle after origin compensation (or origin shift) has been performed for
Detects Resolver angle
to the Resolver angle.
the electrical absolute angle of the Resolver.
present angle
25
25
15
25
26
26
16
26
Calculates advance angle
Detects Resolver speed
Re-writes advance angle
10
27
27
17
27
0
amount
amount
28
28
18
28
29
29
19
29
30
31
20
25
31
32
21
26
Calculates advance angle amount
from the advance angle compensation
values 1 and 2.
The advance angle amount is
re-written when the present angle
equals the advance angle
compensation value 3 parameter.
32
33
22
27
33
34
23
28
1
5
34
35
24
29
35
36
25
30
Chapter 3
36
37
26
31