Parker HPD2N, Руководство пользователя, Страница: 51 / 125

Parker Hannifin S.p.A. - S.B.C. Division HPD N User’s Manual
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b70.12 Reset type 3. Command to set the reference equal to the motor position. Accepted
only when no profile is in execution.
b70.13 Reserved.
b70.14 Reserved.
b70.15 Reserved.
4.6.6. Digital locking
Operating mode 10 is a tracking function referred to a frequency input signal (connector
X6) set as an encoder signal with b42.5=1; the encoder signal is counted on all A and B signal
switching fronts. The motor position counter increases by 4096 steps each revolution. The
ratio between master and slave can be entered using parameters Pr51 and Pr53. You can also
select the ramp to utilise during catch or release cycles (Pr52), add slip speed (Pr58) and limit
speed demands of the proportional part of the loop (Pr50). Further information available:
master and slave locked and servo-error. Using Pr52, the main ramps and the internal PLC
makes it possible to program various different catch and release modes with or without phase
recuperation. Refer to
Frequency input connection chapter for connection diagrams.
PARAMETERS FOR OPERATING MODE 10
Pr50 Maximum speed . Unit=rpm, default=200, range =0..9000. This parameter makes it
possible to limit maximum speed of the motor; it can be used to limit speed during a
catch on fly cycle or during sudden speed changes (see Pr58).
Pr51 Reference multiplication factor . Default=1, range =-32000..+32000. This
parameter, together with Pr53, makes it possible to set the required ratio for the input
reference frequency.
Pr52 Acceleration/deceleration ramp . Unit=s/krpm, default=500, range=0..30000,
resolution=1 thousandth of a second. The acceleration/deceleration demanded of the
motor can be restricted so that a speed decrease or increase of 1000 rpm takes Pr52
thousandths of a second; this function is useful during catch on fly cycles.
Pr53 Reference division factor . Default=1, range=-32000..+32000. This parameter
together with Pr51 makes it possible to set the required ratio for the input reference
frequency.
Pr54 Reserved.
Pr55 Required speed . Unit=rpm Read-only parameter. Shows the input reference
frequency converted into rpm
Pr56 Servo-error window . Unit=steps, default=100. If the absolute value of the position
error exceeds the value set in Pr56, b70.5 is set to 1. If utilised, b70.5 must be reset
by the user, e.g. by the PLC program, following servo-errors.
Pr57 Position controller proportional gain . Default=100, range 0..32000.
Pr58 Slip speed .