Hamilton Sundstrand Company ACT2000 - Manual (Page 49)

Fault Type Persist Time Fault Action
Motor 10 Secs
1 Sec
Motor temp > 130° C, Fault. . If fault exists and
Motor temp > 135° C for 10 Secs, shutdown.
Motor temp > 130° C, Fault
. If fault exists and Motor
temp > 130° C for 60 Secs, shutdown.
Electronics 10 Secs
1 Sec
Electronics temp > 110° C, Fault.
If fault exists and Electronics temp > 115° C for 10 Secs,
shutdown.
Electronics temp > 110° C, Fault.
If fault exists and Electronics temp > 100° C for 15 Secs,
shutdown.
Table 3-4. Fault Configuration For OVERTEMP Alarm
Automatic Shutdown Feature
The ACT2000 has a self-protective shutdown feature. The ACT2000 will
shutdown if:
• Any two motor winding temperatures exceed 135 °C for ten (10)
seconds or more (130 °C for 60 seconds )
• The electronics temperature exceeds 115 °C for 10 seconds or
more (100 °C for 15 seconds )
Note: The POSITION and MOTOR CURRENT feedback signals
will both be set to 0 mA when the current to the actuator
motor is removed.
WARNING
Property Damage and Injury Hazard – If the motor windings exceed
135
° C (130 °C ) or the electronics exceed 115° C (100
°C ), the MCE will shut down power to the motor and electronics
thereby allowing the actuator to move with load. Touching the
actuator may result in serious burn injury
CH. 3: OPERATING THE ACT2000 43