E6581528
I-10
9
Safety category3: EN954-1 category3, IEC/EN61508, SIL2
Stop category0: IEC/EN60204-1
Coast stop under the control of PWR
(2) An example of connection for operation in source mode (common: P24)
• In this connection, the PWR terminal is used to connect a safety device. The emergency stop circuit is
supervised by the external safety relay. This safety relay can be shared among several inverters.
• If the PWR terminal is turned off, the motor will coast and stop. This operation falls under Stop Category 0
defined in IEC/EN60204-1.
• The motor is prevented from restarting automatically before the PWR terminal is turned back on.
• When using the inverter to control the operation of a mechanical brake (for example, when using with a hoist
or crane), connect the cable from the output terminal of the safety relay to the brake control circuit.
MCCB1
PFL
OUT1
Symbols Description
B1 VF-AS1 inverter
MCCB1 Circuit breaker
B2 Safety relay: XPS-AC (manufactured by Schneider Electric)
F1 Fuse
Pb1 Push button switch 2b contact (for emergency stop)
Pb2 Push button switch (for reset and start)
*1: Some inverters* are shipped with the PO and PA/+ terminals short-circuited with a shorting bar. (90kW class
and lower)
*2: Supply voltage: AC/DC24V, AC48V, AC115V, AC230V
*3: If an emergency stop command is issued, the PWR terminal will be turned off to coast and stop the motor.
*4: Pb2 is used to reset/start the inverter after the power is turned on or in the event of an emergency stop.
ESC is used to set reset/start conditions for the external device.
*5: To connect a safety relay to the PWR terminal, use a coaxial cable RG174/U (MIL-C17) or KX3B (NFC93-550)
2.54 mm or more in outside diameter and 2 m or less in length. When using a shielded cable, ground it.
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