
4. SERVO FUNCTION DETAILS B-65150E/04
− 224 −
Parameter setting procedure (5)
Procedure (5) supplements descriptions about application of level-up
HRV for linear motors. (→ See Sec. 4.3, "Level-up HRV Control.")
When level-up HRV is applied to increase the current loop gain of a
linear motor, it is necessary to set the following parameter, because
linear motors have a higher current gain compared with rotational
motors. This parameter setting must be done whenever the absolute
value of the current loop proportional gain (PK2) becomes higher than
16000 (as a rule of thumb) after application of level-up HRV.
#7 #6 #5 #4 #3 #2 #1 #0
1750
−
PK12S2
2210
−
PK12S2 (#2) Specifies whether to use the quadruple current loop gain function
(supported by Series 90A0/D(04) and subsequent editions).
0: Not to use
1: To use ← To be set
When setting this function to ON, re-set the current gain parameters
(PK1 and PK2) to one-fourth.
Table 4.14.1 (g) Current gain parameter setting when level-up HRV is
applied
Typical setting
Setting after level-up HRV
is applied
Model
name
PK12S2 PK1 PK2
→
PK12S2 PK1 PK2
1500A 0 1890 −7180 0 1512 −11488
3000B 0 4804 −14453 1 961 −5782
6000B 0 4804 −13138 → 1 961 −5253
9000B 0 5036 −16000 1 1008 −6400
15000C 1 1420 −5600 1 1136 −8960
(4) Invalid-parameter alarm when linear motors are used
The following invalid-parameter alarm checks are added when linear
motors are used (they are not issued for rotational motors).
• No separate detector can be used for linear motors. (Full-closed
loop setting results in an alarm being issued.)
NOTE) The invalid-parameter alarm detail No. is A043 (10043
on the diagnosis screen).
• If no AMR conversion coefficient is set, an alarm is issued. (Even
when the scale is not relocated after the motor is replaced, the
AMR conversion coefficients must be re-set, because
initialization accompanying motor replacement causes the AMR
coefficients to be erased.)
NOTE) The invalid-parameter alarm detail No. is 1123.