Controller Function And Technical Parameter - SCC MAM–200 Operation Manual

1.6 Operating Authorization and Password
Controller provides multiple passwords and access management. According to different levels of passwords,
controller provides different levels of operating authorization. Details are as following:
Customer Password: factory set ____________
Permissions: Allows to modify all Customer Parameter
Factory Password: fixed ____________
Permissions: Allows user to modify all Parameter

2 Controller Function and Technical Parameter


Phase sequence protection:
When compressor is at stop mode an detects open phase, response time <2ms

Open phase protection
When any phase opens, the response time equals to set time: This fuinction is not activated when OPEN PHASE
PROTECTION time iss et over 20s

Motor protection: This control unit has the following 5 basic protection functions to the motor and fan.
o Rotor lock protection: After the starting oft he motor, if the working current reaches 4 or 8 times oft he set
value, the protection activates. The activate time is less than 0,2s.
o Short.circuit protection: If the detected current reaches 8times or more above the set value, the protection
activates, the activate time is less then 0,2s
o Lack phase protection: Any oft the phase lack, the protection activates and theactivate time ist he setting
time
o Unbalance protection: The current difference between any of the two phases reaches the percentage of the
setting value, the protection activates and the activate time is less than 5s.
o Protection features of overload, please see following table for your reference. Multiple＝Iactual／Iset ,
response time is shown in following table according to overload multiples from 1.2 times an 3.0times.
I /I
act set
Time Para
response time (s)
04.08.2017
≥1.2 ≥1.3
60 48
Operation Manual MAM - 200 V1.0
≥1.5 ≥1.6
24 8
≥2.0 ≥3.0
5 1
13