Toshiba H9 - Manual (Page 200)

192 H9 ASD Installation and Operation Manual
PTC2 Thermal Selection
Program
⇒
Special
⇒
Special Parameters
⇒
PTC2 Thermal Selection
This parameter Enables/Disables the optional external thermal detection circuit
of the Expansion IO Card Option 2. A thermistor is connected from TH1+ to
TH1- of TB4 on the Expansion IO Card Option 2.
Should the thermistor resistance reading fall below 50 Ω because of an over-
temperature condition or exceed 3000 Ω because of an open circuit an External
Thermal Fault (OH2) will be incurred.
Note: While this parameter is Enabled, the system cannot be restarted
until the thermistor value recovers to the level of 1.8k
Ω from an
over-temperature condition. An Auto-restart will not be initiated
subsequent to an External Thermal Trip (OH2). A manual
restart will be required in the event of an OH2 trip.
Settings:
0 — Disabled
1 — Detect Disconnect
Direct Access Number — F638
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Braking Resistance Overload Time (10x rated torque)
Program
⇒
Protection
⇒
Dynamic Braking
This parameter sets the time that the braking resistor is allowed to sustain and
overload condition before a trip is incurred.
This feature is useful for applications that have a fluctuating load or for loads
that require a long deceleration time.
Direct Access Number — F639
Parameter Type — Numerical
Factory Default — 5.0
Changeable During Run — No
Minimum — 0.1
Maximum — 600.0
Units — Seconds
Step-Out Current Detection Level
Program
⇒
Motor
⇒
PM Motor
This parameter is used with synchronous motor applications only.
Contact Toshiba Customer Service Department for information on this
parameter.
Direct Access Number — F640
Parameter Type — Numerical
Factory Default — 100
Changeable During Run — Yes
Minimum — 10
Maximum — 150
Units — %
Step-Out Current Detection Time
Program
⇒
Motor
⇒
PM Motor
This parameter is used with synchronous motor applications only.
Contact Toshiba Customer Service Department for information on this
parameter.
Direct Access Number — F641
Parameter Type — Numerical
Factory Default — 00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 25.0
Units — Seconds
F638 F641