ABB UMC22-FBP, Technical Description

Page: 64 / 168

- 64 - UMC22-FBP
Universal Motor Controller UMC22-FBP
Software version 4.0
FieldBusPlug / Issue: 02.2008
V 6
4.3.4 Parameter - Details in alphabetical order (continued)
Chapter 4.3.4~14
Parameter
name /
Parameter
number
Remark
Parameter value
Description of parameter values
Contr
ol
system
(digital
value if
dif
fer
ent)
Contr
ol
Panel
Phase loss
protection
06
Phase loss protection / PTC fault protection (3.6)
Accessible via control system or Control Panel (menu point: PH.LP)!
Safety remark!
The UMC22 is designed for 3-phase loads and therefore calculates internally with trip
curves as they are used for 3-phase loads. Because of this phase loss protection is
activated by default. Only for demo and test purposes it is allowed to deactivate the
phase loss protection. During normal operation phase loss protection must be always
activated, because in case of phase loss the deactivation leads to a delayed trip so that
thermal motor protection is not guaranteed.
Phase loss / PTC protection offers the following possibilities (Bits):
0000.0x-- PTC warning / PTC trip
x = 0: PTC warning / x = 1: PTC trip / -: any
PTC warning:
A warning is issued in case of PTC sensor’s resistance transitions from a low to high value. The
Warning disappears automatically after temperature is low.
PTC trip:
A warning and trip (stop motor) is issued in case of PTC sensor’s resistance transitions from a low
to high value. The Warning dissapears automatically after temperature is low and PTC sensors's
resistance transitions from a high to low value. The fault (trip) disappear after fault reset.
0000.0-x- PTC protection
x = 0: not active / x = 1: active / -: any
0000.0--x 000.0--x Phase loss protection
x = 0: not active / x = 1: active / -: any
Phase loss protection active:
Fault if the actual current of one phase (or two phases) has less than 50% of the actual current in
the other phases. A phase loss also starts the Cooling time.
Attention! The Phase loss protection operates correct only when the actual current of two
phases is 80% or more of the Set current.
Off
(0)
PH.oF
Phase loss protection not active /
PTC protection not active (0000.0000)
On
(1)
PH.on
Phase loss protection active /
PTC protection not active (0000.0001) (=default)
Off+PTC Warn
(2)
PH. 2
Phase loss protection not active /
PTC protection active mit PTC warning (0000.0010)
On+PTC Warn
(3)
PH. 3
Phase loss protection active /
PTC protection active mit PTC warning (0000.0011)
004
(4)
PH. 4
Phase loss protection not active /
PTC protection not active (0000.0100)
PTC trip activated, not executed, because PTC protection is not active.
005
(5)
PH. 5
Phase loss protection active /
PTC protection not active (0000.0101)
PTC trip activated, not executed, because PTC protection is not active.
Off+PTC Trip
(6)
PH. 6
Phasenausfallschutz nicht aktivert /
PTC protection active mit PTC trip (0000.0110)
On+PTC Trip
(7)
PH. 7
Phasenausfallschutz aktivert /
PTC protection active mit PTC trip (0000.0111)