PROGRAMMING MENU
Page 34
MVS User Manual
710-13019-00A
I
NST
O
VERCURRENT
The relay closes when the starter trips on Instantaneous
Overcurrent.
F
REQUENCY
The relay closes when the starter trips on Frequency.
G
ROUND
F
AULT
The relay closes when the starter trips on Ground Fault.
H
EATSINK
O
VERTEMP
Not applicable to this product.
P
HASE
L
OSS
The relay closes when the starter trips on Phase Loss.
M
OTOR
T
HERMISTOR
The relay closes when the starter trips on Motor Thermistor.
C
HANGEOVER
C
ONTACTOR
The relay closes when the high rotor resistance current ramp
has reached full voltage, allowing use with a slip-ring motor.
U
NDERVOLTAGE
The relay closes when the mains voltage drops below the level
set in parameter 4Q.
Description:
Selects the function of Relay A (normally open).
7B, 7C – Relay A Delays
The MVS can be configured to wait before opening or closing Relay A.
Parameter 7B
Relay A On Delay
Range:
0:00 - 5:00 (minutes:seconds)
Default: 0 seconds
Description:
Sets the delay for closing Relay A.
Parameter 7C
Relay A Off Delay
Range:
0:00 - 5:00 (minutes:seconds)
Default: 0 seconds
Description:
Sets the delay for re-opening Relay A.
7D~7I – Output Relays B and C
Parameters 7D~7I configure the operation of Relays B and C in the same way as parameters 7A~7C configure
Relay A. Refer to Relay A for details.
Relay B is a changeover relay.
7D
Relay B Function
Default: Run
7E
Relay B On Delay
Default: 0 seconds
7F
Relay B Off Delay
Default: 0 seconds
Relay C is a changeover relay.
7G
Relay C Function
Default: Trip
7H
Relay C On Delay
Default: 0 seconds
7I
Relay C Off Delay
Default: 0 seconds
The following parameters are reserved for future use:
7J ~ 7L
Reserved
7M, 7N – Low Current Flag and High Current Flag
The MVS 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.
Parameter 7M
Low Current Flag
Range:
1% - 100% FLC
Default: 50%
Description:
Sets the level at which the low current flag operates, as a percentage of motor full load
current.
Parameter 7N
High Current Flag
Range:
50% - 600% FLC
Default: 100%
Description:
Sets the level at which the high current flag operates, as a percentage of motor full load
current.
7O – Motor Temperature Flag
The MVS 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 of the programmable outputs.
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