Solcon MPS 3000, Manual

Page: 27 / 67

SET PAGE - MENUS
Page 27 of 67
G/F During Start
100% of FLC
Ground Fault Level 1 & 2 Alarm / Trip During start period. Intended to be used
with Residual "C/T"s connection, to prevent nuisance tripping with high currents
of start process.
Range: 1 – 100% of FLC. Increments of: 1 %.
Current Inhibit
OFF
Prevents trip and inhibits opening of contactors A & B, when short circuit current
exceeds the set value, to prevent contactor's damage. Thermal trip overrides
current inhibit.
Set to OFF when contactors are not used to trip the motor (for circuit breaker
application).
WARNING
: The MPS will not protect the motor against high current above the
current inhibit setting. It is the customers responsibility to ensure that the motor
is protected against fault current, above Current Inhibit by external protection
Range: OFF, 400-1000% of Motor FLC. Increments of: 10%.
Starting Method
Direct on Line
Type of starting method.
Range: Direct on Line, Star (Wye)/Delta, Reversing, Two-speed and No Start
Process. Use No Start Process setting, to allow entering to run even if current
at “starting” is low (for example for transformer protection).
When selecting and storing Star-Delta method, the following three parameters values can be altered.
Max. Time in Star
10 Sec.
Time period during which star contactor is closed. This time will shorten if
current decreases below "Star to Delta at" value, but not below 0.25 Max Time
in Star.
Range: 1- 60 Sec. Increments of : 0.1 Sec.
Transition Time
200 ms.
Time period when both contactors A and B are open.
range: 0.05 - 2 Sec. Increments: 0.05 Sec.
Star to Delta at
150% of FLC
Current value (in % of FLC) in which Star to Delta switching occurs. Provided
Star time is above 25% of "Max Time in Star" setting.
Range: 70 - 200% of FLC. Increments of :
1
%
When selecting and storing "Direct On Line" or "Reversing", none of the above parameters can be
altered.
When selecting and storing "Two Speed" method, the following two parameters can be altered.
Low Speed FLC.
10 Amp.
Low speed motor FLC.
Range: 1 - 2000 Amp.
Increments of : 1A
Lo Spd Curve Mul
20
Overload Trip Curve Multiplier. Note: Set to 1..15 !!
Range: 1 - 15. Increments of : 1.
Star to Delta at Can not be altered.
Config. Output A
Overload Trip
Enables Configuration of Output A relay as:
Contactor A (the relay is used for controlling the contactor)
•
Alarm
•
Alarm - Fail Safe
•
Tripping / Alarm (Relay operates by group of faults as set in
Tripping/Alarm page).
•
Number Of Starts Pre Alarm.
•
Under Voltage Start Prevent.
•
KWH Pulse Relay
Output Delay
0 Sec.
Time delay for Output A.
Range: 0 - 250 Sec. Increments of : 1 Sec.