15 miscellaneous protective functions, 16 momentary power loss ride-thru, Miscellaneous protective functions -20 – Yaskawa V7 Drives User Manual
Page 72: Momentary power loss ride-thru -20
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n065 : Monitor output Selection
Factory Setting:
0
Range: 0 – 1
Analog output AM & AC can be used as a pulse train output (output frequency monitor only).
n066 : Multi-function Analog Output
Factory Setting:
1.00
Range: 0 – 5
The monitor output provides a 0-10 Vdc signal
proportional to either output frequency or output current
between terminals AM & AC:
0 = 0-10 Vdc proportional to output frequency
(10V = 100% of maximum frequency)
1 = 0-10 Vdc proportional to output current
(10V = 100% of drive rated current)
2 = 0-10 Vdc proportional to DC Bus Voltage
(10V = 400 Vdc [800 Vdc])
3 = 0-10 Vdc proportional to motor torque
(10V = motor rated torque)
4 = 0-10 Vdc proportional to output power
(10V = drive capacity (KW))
5 = 0-10 Vdc proportional to output voltage
(10V =
n012 (Voltage max))
6 = 0-10 Vdc proportional to frequency reference
Drive
AM
Analog
output
AC
(0-10 Vdc)
MULTI-
FUNCTION
MONITOR
OUTPUT
+ –
FREQUENCY / CURRENT
METER
(1mA FULL SCALE)
5.17 MULTI-FUNCTION ANALOG MONITOR OUTPUT (Term. AM & AC)
SETTING
DESCRIPTION
0
Analog monitor output
1
Pulse train output (output frequency monitor)
n010 : Operator Connection Fault Detection
Factory setting:
0
Selection
Range: 0 or 1
Set this parameter to “1” only if the drive should shut down immediately if the Digital Operator is dis-
connected while the drive is running. When set to “0”, the fault will not occur until after the drive has
been stopped.
n081 : Momentary Power Loss Ride-thru
0
= Disabled (Factory setting)
Protection
1
= Enabled – 2 sec. power loss
ride-thru
2
= Enabled – indefinite power loss
ride-thru, provided control
power is maintained
The setting of this parameter either enables or disables the ride-thru feature of the Drive. If
disabled, the unit will stop immediately whenever a power loss occurs. If enabled, the Drive will
continue to operate during a momentary power loss of up to 80%, but if the loss exceeds the
identified time period, the Drive will stop.
5.16 MOMENTARY POWER LOSS RIDE-THRU
5.15 MISCELLANEOUS PROTECTIVE FUNCTIONS