4-6 Relay B Off Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for reopening relay B.
4-7 Relay C Function
Option:
Function:
Selects the function of relay C (normally open).
Off
Relay C is not used.
Main
contactor
The relay closes when the soft starter receives a
start command and remains closed as long as
the motor is receiving voltage.
Run
The relay closes when the soft starter changes
to run state.
Trip*
The relay closes when the starter trips.
Warning
The relay closes when the soft starter issues a
warning.
Low current
flag
The relay closes when the low current flag
activates (
parameter 4-10 Low Current Flag
).
High current
flag
The relay closes when the high current flag
activates (
parameter 4-11 High Current Flag
).
Motor temp
flag
The relay closes when the motor temperature
flag activates (
parameter 4-12 Motor Temperature
Flag
).
4-8 Relay C On Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for closing relay C.
4-9 Relay C Off Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for reopening relay C.
8.4.3 Low Current Flag and High Current
Flag
The soft starter has low and high current flags to give early
warning of abnormal operation. The current flags can be
configured to indicate an abnormal current level during
operation between the normal operating level and the
undercurrent or instantaneous overcurrent trip levels. The
flags can signal the situation to external equipment via 1
of the programmable outputs. The flags clear when the
current returns within the normal operating range by 10%
of the programmed flag value.
4-10 Low Current Flag
Range:
Function:
50%
*
[1–100%
FLC]
Sets the level at which the low current
flag operates, as a percentage of motor
full load current.
4-11 High Current Flag
Range:
Function:
100%
*
[50–600%
FLC]
Sets the level at which the high current
flag operates, as a percentage of motor
full load current.
8.4.4 Motor Temperature Flag
The soft starter has a motor temperature flag to give early
warning of abnormal operation. The flag can indicate that
the motor is operating above its normal operating
temperature, but lower than the overload limit. The flag
can signal the situation to external equipment via 1 of the
programmable outputs.
4-12 Motor Temperature Flag
Range:
Function:
80%
*
[0–160%] Sets the level at which the motor temperature
flag operates, as a percentage of the motor
thermal capacity.
8.4.5 Analog Output A
The soft starter has an analog output, which can be
connected to associated equipment to monitor motor
performance.
4-13 Analog Output A
Option:
Function:
Selects which information is reported via analog
output A.
Current (%
FLC)*
Current as a percentage of motor full load current.
Motor
temp (%)
Motor temperature as a percentage of the thermal
capacity of the motor.
Motor kW
(%)
Measured motor kW, as a percentage of maximum
kW.
Motor kVA
(%)
Measured motor kilovolt amperes, as a percentage
of maximum kVA.
Motor pf
Motor power factor, measured by the soft starter.
•
Measure motor kW:
√
3 x average current
x mains reference voltage x measure
power factor.
•
Maximum motor kW:
√
3 x motor FLC x
mains reference voltage. Power factor is
assumed to be 1.
•
Measure motor kVA:
√
3 x average current
x main reference voltage.
•
Maximum motor kVA:
√
3 x motor FLC x
mains reference voltage.
4-14 Analog A Scale
Option:
Function:
Selects the range of the output.
0–20 mA
4–20 mA*
Parameter Descriptions
Operating Guide
MG17K602
Danfoss A/S © 05/2016 All rights reserved.
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