U Page 43
Digital controller RK 4004
.6.2. current_P; .6.3. current_I
The P and I components of the current controller may be found in the
table in chapter 6.
The values may not be changed. The values are already optimised at
the factory.
Changing these 2 parameters impairs optimum guider operation.
Changing these values may result in guiding impairment to loss of
system function.
.6.4. set current
The current internal set current is displayed. Only of significance for
E+L service personnel.
.6.5. reserved 65
Not assigned at present.
.6.6. reserved 66
Not assigned at present.
.6.7. reserved 67
Not assigned at present.
.6.8. diagnostics
Parameter block for displaying the system status.
.6.9. system error
The following error messages are possible:
1 = supply voltage under 20 V DC
2 = supply voltage over 30 V DC
3 = the guider cut-off current has been exceeded
4 = the heat sink temperature is over 70°
5 = the incremental encoder is defective
6 = the incremental encoder is inverted (signal lines confused)
7 = no message from the right sensor
8 = no message from the left sensor
10 = the motor line is interrupted
12 = the motor output stage is defective
13 = the motor is blocked at maximum motor current
14 = several reference switch switching points
15 = the end position proximity switches are confused
16 = the external voltage supply of the control card is overloaded for
further attached devices.
