RemedyDescription/causeIndication on display
●
Enable EMERGENCY stop switch.
●
Reset EMERGENCY stop state by means
of Reset command.
The EMERGENCY stop switch has been op-
erated.The motor control power supply (con-
tactors or thyristors) is disconnected.
EMCY stop active
●
Detect cause for EMERGENCY signal.
●
Verify failure source.
●
Apply +24 V DC at EMERGENCY input.
Operation mode EMERGENCY is active
(EMERGENCY signal was sent).
0 V are applied at the EMERGENCY input.
EMCY behav. active
Check I/O interface.The actuator is controlled via the I/O interface
(parallel).
I/O interface
Start motor operation.Manual operation is activated.
Handwheel active
Check interlock signal.An interlock is active.
Interlock
Check states of main and by-pass valve.By-pass function is interlocked.
Interlock by-pass
Wait until PVST function is complete.Partial Valve Stroke Test (PVST) is active.
PVST active
10.3. Fuses
10.3.1. Fuses within the actuator controls
Fuses used
F1/F2
Primary fuses on power supply unit
AUMA art. no.F1/F2G fuse
6.3 x 32 mmSize
K002.2771 A T; 500 VReversing contactors
Power supply ≤ 500 V
K002.6652 A FF; 690 VReversing contactors
Power supply > 500 V
K002.2771 A T; 500 VThyristor units for motor power up to 1.5 kW
Thyristor units for motor power up to 3.0 kW
Thyristor units for motor power up to 5.5 kW
F3
Internal 24 V DC supply
AUMA art. no.F3G fuse according to IEC 60127-2/III
5 x 20 mmSize
K006.1062.0 A T; 250 VVoltage output (power supply unit) = 24 V
K006.1062.0 A T; 250 VVoltage output (power supply unit) = 115 V
F4
Internal 24 V AC supply (115 V AC) for:
●
Heater, switch compartment, reversing contactors control
●
PTC tripping device
●
for 115 V AC also control inputs OPEN - STOP - CLOSE
AUMA art. no.F4G-fuse according to IEC 60127-2/III
5 x 20 mmSize
K001.1841.25 A T; 250 VVoltage output (power supply unit) = 24 V
——Voltage output (power supply unit) = 115 V
F5
Automatic reset fuse as short-circuit protection for external 24 V DC supply for
customer (see wiring diagram)
Replace fuses F1/F2
Hazardous voltage!
Risk of electric shock.
→
Disconnect device from the mains before opening.
52
SQ 05.2 – SQ 14.2/SQR 05.2 – SQR 14.2 Control unit: electronic (MWG)
Corrective action AC 01.2 Non-Intrusive
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