Hitachi SJ2-CO - Manual (Page 22)

CHAPTER5 CANOPEN COMMUNICATION FUNCTION
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5.1.10 vl_target_velocity (Index: 6042h)
The vl target velocity is the required velocity of the system. It is multiplied the vl dimension factor
and the vl set-point factor, if these are implemented.
Inverter parameter = output frequency setting (Multi-speed0) (A020)
(unit: min
-1 Minimum unit: 1dig= 1min -1 )
5.1.11 vl_velocity_demand (Index: 6043h)
The vl velocity demand is the instantaneous velocity provided by ramp function, scaled to the unit of
the vl target velocity.
Inverter parameter = output frequency monitor (d001)
(unit: min -1 Minimum unit: 1dig= 1min -1 )
5.1.12 vl_velocity_effort (Index: 6044h)
The vl velocity effort is the velocity at the motor spindle or load, scaled to the unit of the vl target
velocity.
(unit: min -1 Minimum unit: 1dig= 1min -1 )
5.1.13 vl_velocity_min_max_amount (Index: 6046h)
The vl velocity min-max amount index is composed of the vl velocity min(Sub-index1) amount and vl
velocity max(sub-index2) amount sub-index. (32bit length)
Sub-index1 = 1st frequency minimum limiter (A062)
Sub-index2 = 1st frequency maximum limiter (A061)
(unit: min -1 Minimum unit: 1dig= 1min -1 )
o
u
tp
u
t
0
input
+vl_velocity_max_amount
+vl_velocity_min_amount
-vl_velocity_min_amount
-vl_velocity_max_amount