GE ASTAT XL, Руководство пользователя

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DET-812 17
panel. Connecting other equipment to this port can damage the soft starter or the
equipment.
5.3 Control Wiring
The ASTAT XL has three fixed inputs for remote control. These inputs should be controlled by contacts
rated for low voltage, low current operation (gold flash or similar).
1
A
B
A B
C
A
B
C
C
2 3
57
56
55
54
58
57
56
55
54
58
57
56
55
54
58
08
72
1.
B
1 Two-wire control
2 Three-wire control
3 Four-wire control
A Start
B Stop
C Reset
CAUTION
Do not apply voltage to the control input terminals. These are active 24 VDC inputs and
must be controlled with potential free contacts.
Cables to the control inputs must be segregated from mains voltage and motor cabling.
5.4 Relay Outputs
The ASTAT XL has three programmable relay outputs.
Operation of the programmable outputs is determined by the settings of parameters 7A~7I.
•
If assigned to Main Contactor, the output activates as soon as the soft starter receives a start
command and remains active while the soft starter is controlling the motor (until the motor starts a
coast to stop, or until the end of a soft stop).
•
If assigned to Run, the output activates when the soft start is complete (when the starting current
falls below 120% of the programmed motor full load current) and remains closed until the
beginning of a stop (either soft stop or coast to stop).
•
If assigned to a trip function, the output activates when a trip occurs.
•
If assigned to a flag, the output activates when the specified flag is active (parameters 7J~7L).
CAUTION
Some electronic contactor coils are not suitable for direct switching with PCB mount relays.
Consult the contactor manufacturer/supplier to confirm suitability. See also
ASTAT XL Output
Relay Compatibility on page 82 for more information.
5.5 Motor Thermistors
Motor thermistors can be connected directly to the ASTAT XL. The soft starter will trip when the
resistance of the thermistor circuit exceeds approximately 3.6 k
Ω or falls below 20 Ω .
No motor thermistors
Motor thermistors
65
64
65
64
0872
2.
A
Thermistor input
NOTE
If no motor thermistors are connected to the ASTAT XL thermistor input terminals 64, 65 must be
open. If 64, 65 are shorted, the ASTAT XL will trip.
The thermistor circuit should be run in screened cable and must be electrically isolated from
earth and all other power and control circuits.