Yaskawa GPD505 - Manual (Page 16)

TM4028 7/12/2001
16
AO17 Display Units Description
parameter n012 or GPD506 parameter n011
2-39 rpm Specifies number of motor poles (P). Speed is calculated by :
N
s
= 120*f / P.
40 - 3999 custom Specifies desired reading at maximum output frequency,
where the lower 3 digits indicate the unscaled reading and the
upper digit places the decimal point. The output frequency
range is linearly converted to this new range. For example:
If the display range is desired to be 0.0 – 14.7, AO17 is set to
1147.
This object configures the drive as described below:
Object
ID
Object Name GPD505
Parameter
GPD506
Parameter
Units Default Min Max
AO17 Operator Display Mode n024 n023 - 0 0 3999
4.1.10 Power Loss Ride-Through – AO18
This analog output defines how the drive will react to a momentary power loss, as described below:
AO18 Ride-Through Mode
0 Ride-Through Disabled
1 Ride-Through Enabled for up to 2 seconds
2 Ride-Through Enabled indefinitely, provided control
power is maintained
This object configures the drive as described below:
Object
ID
Object Name GPD505
Parameter
GPD506
Parameter
Units Default Min Max
AO18 Power Loss Ride-Through n051 n055 - 0 0 2
4.1.11 General Purpose Setup – AO22, AO23
Two analog outputs are defined for setting any drive parameter:
AO22 - Specifies the drive parameter to be set. Writing to this object initiates the write sequence.
AO23 - Specifies the value to be written to the specified parameter. Writing to this object completes the
write sequence and causes the value to be sent to the drive.
Refer to the appropriate Technical Manual for a detailed description of all parameters.
NOTE: The increment listed in the Technical Manual must be considered when specifying a value.
For example, to set GPD506 parameter n070 (GPD505 n066), DC Injection Time at Stop, to 1
second, AO23 must be set to 10, since the increment for this parameter is 0.1 seconds.