TECO-Westinghouse EQ7 Series, Инструкция по эксплуатации

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
Enable input OFF -- EN OFF (Function code data = 102)
This output signal comes ON when Enable inputs on [EN1] and [EN2] terminals are OFF (opened). See the table
below.
*1: These signals do not assure detection of all of single failures. (Compliant with EN ISO13849-1 PL=d Cat. 3)
Logic Table for DECF and EN OFF Signals
Main power input
L1/R, L2/S, L3/T
Enable input
Transistor output
or
Alarm relay output
(for any error) *2
Output
EN1-PLC EN2-PLC DECF EN OFF
OFF x x OFF OFF Shut down (Safe Torque Off (STO) *3)
ON
OFF OFF OFF ON Shut down (Safe Torque Off (STO) *3)
ON ON OFF OFF Wait for a run command
ON OFF ON *4 OFF Shut down (Safe Torque Off (STO) *3)
OFF ON ON *4 OFF Shut down (Safe Torque Off (STO) *3)
x: Independent of this state, the output is determined.
*2 To use these functions, it is necessary to assign DECF / EN OFF to digital output terminals (function codes E20
to E24 and E27, data = 101/102 or 1101/1102 (negative logic)).
*3 Output shutdown (Safe Torque Off) prescribed in IEC61800-5-2.
*4 If either one of these terminals are kept OFF for 50ms or more, the inverter interprets it as a discrepancy,
causing an alarm ecf . This alarm state can be cleared only by turning the inverter power off and on clears this
alarm.

Braking transistor broken -- DBAL (Function code data = 105)
If the inverter detects a breakdown of the braking transistor, it issues the braking transistor alarm ( ) and also
the output signal DBAL . Detection of braking transistor broken can be cancelled by H98. (40 HP or below)
(

Refer to the description of H98.)
Breakdown of the braking transistor could lead to the secondary breakdown of the braking resistor and
inverter’s internal units. Use this output signal
DBAL to detect abnormal operation of the built-in braking
transistor and to cut off power to the magnetic contactor in inverter primary circuits, for preventing spread
of the damage.
E30 Frequency Arrival (Hysteresis width)
E30 specifies the detection level (hysteresis width) for the "Frequency (speed) arrival signal" FAR and the
"Frequency (speed) arrival signal 3" FAR3 .
Output signal
Data assigned to
output terminal
Operating condition 1 Operating condition 2
Frequency
(speed) arrival
signal
FAR
1
Both signals come ON when
the difference between the
output frequency
(estimated/detected speed)
and the reference frequency
(reference speed) comes
within the frequency arrival
hysteresis width specified by
E30.
FAR always goes OFF when the run
command is OFF or the reference
speed is "0."
Frequency
(speed) arrival
signal 3
FAR3
72
When the run command is OFF, the
inverter regards the reference speed
as "0," so
FAR3 comes ON as long
as the output frequency
(estimated/detected speed) is within
the range of "0 ± the frequency arrival
hysteresis width specified by E30."
- Data setting range: 0.0 to 10.0 (Hz)