Flowserve LTQ008 Series User Instructions page 41

LTQ008 – LTQ230 Series Single-Phase Products User Instructions –
Table 4: Fault symptoms for failsafe control models
A c t u a t o r d o e s n o t m o v e t o e x p e c t e d F a i l - S a f e p o s i t i o n u p o n l o s s o f m a i n s p o w e r
 A c t u a t o r d o e s n o t c o m p l e t e t h e m o v e t o t h e f u l l e n d o f t r a v e l p o s i t i o n u p o n l o s s o f m a i n s


Stored Energy device not connected

Stored Energy device not charged
 Fail-Safe direction incorrectly set

Stored Energy device not sufficiently
charged

Fault OUT contact is closed. ERR indicator
on PCB is ON

ERR indicator is ON
Target
After actuator commissioning, plug the two-pin green
connectors together. The BAT status LED must be ON when power
is On.
Unit must charge for at least twelve hours after initial
connection is made
Reset 4 position DIP Switch
Unit must charge for at least twelve hours after initial
connection is made.
Yellow BAT status indicator must be on or flashing when mains
power is ON and stored energy device is plugged into connector.
Motor current draw exceeds the capacity of the stored energy
device. Check valve torque and charge time.
Mains power ON time is insufficient between power failures -
increase ON time.
Stored energy demand cycle has depleted the life of the device
- replace stored energy pack.
Stored energy device disconnected - reconnect two-pin plug.
Stored energy device voltage drops below 18.5VDC.
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Action
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