4-8 Relay C On Delay
Range:
Function:
0 secs
*
[0:00 - 5:00 (min:secs)] Sets the delay for closing Relay
C.
4-9 Relay C Off Delay
Range:
Function:
0 secs
*
[0:00 - 5:00 (min:secs)] Sets the delay for re-opening
Relay C.
7.7.3 Low Current Flag and High Current
Flag
The MCD 500 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
one of the programmable outputs. The flags clear when
the current returns within the normal operating range by
10% of the programmed motor full load current.
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.
7.7.4 Motor Temperature Flag
The MCD 500 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 one fo
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's thermal capacity.
7.7.5 Analog Output A
The MCD 500 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 will be 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 motor
service factor (calculated by the soft starter's
thermal model).
Motor kW
(%)
Motor kilowatts. 100% is motor FLC (
1-1 Motor
FLC
) multiplied by mains reference voltage (
8-9
Mains Reference Voltage
). Power factor is assumed
to be 1.0.
3 ×
V × IFLC × pf
1000
Motor kVA
(%)
Motor kilovolt amperes. 100% is motor FLC (
1-1
Motor FLC
) multiplied by mains reference voltage
(
8-9 Mains Reference Voltage
).
3 ×
V × IFLC
1000
Motor pf
Motor power factor, measured by the soft starter.
4-14 Analog A Scale
Option:
Function:
Selects the range of the output.
0-20 mA
4-20 mA
*
4-15 Analog A Maximum Adjustment
Range:
Function:
100%
*
[0% - 600%] Calibrates the upper limit of the analog
output to match the signal measured on
an external current measuring device.
4-16 Analog A Minimum Adjustment
Range:
Function:
0%
*
[0% - 600%] Calibrates the lower limit of the analog
output to match the signal measured on an
external current measuring device.
7.8 Start/Stop Timers
CAUTION
The auto-start timer overrides any other form of control.
The motor may start without warning.
5-1 Auto-Start Type
Option: Function:
Selects whether the soft starter will auto-start after a
specified delay, or at a time of day.
Off
*
The soft starter will not auto-start.
Timer The soft starter will auto-start after a delay from the
next stop, as specified in
5-2 Auto-start Time
.
Clock The soft starter will auto-start at the time programmed
in
5-2 Auto-start Time
.
Programming
MCD 500 Operating Instruction
60
MG17K402 - VLT
®
is a registered Danfoss trademark
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