Danfoss vlt soft starter mcd 500, Инструкция по эксплуатации

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4-6 Relay B Off Delay
Range: Function:
0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for re-opening 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 MCD 500 receives a start command, and remains closed as long as the
motor is receiving voltage.
Run The relay closes when the starter changes to run state.
Trip
*
The relay closes when the starter trips.
Warning The relay closes when the starter issues a warning.
Low Current Flag The relay closes when the low current flag activates (Par. 4-10
Low Current Flag
).
High Current Flag The relay closes when the high current flag activates (Par. 4-11
High Current Flag
).
Motor Temp Flag The relay closes when the motor temperature flag activates (Par. 4-12
Motor Temperature Flag
).
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.
7.8.3 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.
7.8.4 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 Temp 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.
MCD 500 Operating Instruction 7 Programming
MG.17.K2.02 - VLT
®
is a registered Danfoss trademark
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