11
vacon • 186 Non-regenerative front end
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
The required AC fuse type for the non-regenerative front end unit can be found from Table 78. The
required DC fuse type for the non-regenerative front end unit can be found from Table 79.
11.9.1 Fuse sizes, Non-regenerative Front End units
11.9.2 Circuit breaker settings, Non-regenerative Front End units
NOTE! If other circuit breakers are used, the overload and short circuit characteristics must be
similar than those of the circuit breakers mentioned above. Overload I
N
= 1000A
AC
/3sec,
instantaneous short-circuit l = 1500A
AC
. Note that IEC, UL and other related approvals may be
required. For UL enclosures, use UL Listed Breakers with category code PAQX or DIVQ.
11.10 Settings
11.10.1 Phase monitor settings
The option boards and phase monitor relays have settings that you may need to adjust. For settings
of software application parameters, see Chapter 11.13.
The phase monitor relays (PMR1.1 and PMR1.2) have functions to detect under voltage, phase
sequence and phase failure. All of those have to be correct so that the power unit is powered
Table 78. AC Fuse sizes for VACON
®
NX NFE units
Chassis Code Fuse, Mersen U
N
[V] I
N
[A] Size Bolts Qty.
CH60 NXN 2000 6 PC233UD69V16CTF/ F300270A 690 1600 2x33 M12 6
Table 79. DC Fuse sizes for VACON
®
NX NFE units
Chassis Code Fuse, Mersen U
N
[V] I
N
[A] Size Bolts Qty.
CH60 NXN 2000 6 PC87UD11C38CP50 / K302988A 1050 3800 284 M12 2
Table 80. Circuit breaker settings for VACON
®
NX NFE units
Type Code Type, ABB Qty.
L I N
I1 t1 I3 InN
NFE NXN 2000 6
X1N16FF3PR331LI 2 0.625 3s 1.5 50%
X1N12FF3PR331LI 2 0.825 3s 1.5 50%
X1N10FF3PR331LI 2 1.000 3s 1.5 50%
To Next Page
Loading...
Need help?
General
