Typical Wiring Schematics; Typical Schematic For Vfd Wiring - Trane CSAA Installation, Operation And Maintenance Manual

Typical Wiring Schematics

Figure 155. Typical schematic for VFD wiring
1PD1
Supply fan
1
L1
Customer
2
L2
supplied
power
3
L3
Attach
earth
ground
27
1TB13-3 1TB13-6
15 Jumper
16A,B,C
15A
Jumper
16C
A
B
27A,B
A
B
CLCH-SVX07K-EN
1CB11
1A 1B,C,D
2A 2B,C,D
3A 3B,C
C
101E
12
To
102E
Ret/Exh
fan
103E
40
1F1
1T1
460V
TAP SETTING
8
H3
H1
1K5
1TB13-7
120V
X1
15 14
3 2 14A
6
1K3
1TB13-4 1TB13-5
16 4 3 18
OFF
Bypass
VFD Auto Hand
1S10 D A
1K40
22A
21A
1K42
1K41
25A 26A
24A
A
1K42
Customer
supplied
auto speed ref
40 40 40
41 41
1F1 1F2 1F1 1F2 1F1
H3 H2
H3 H4
H1 H2 H1 H4
X1 X2 X1 X2 X1
120 120
1T1 1T1
200V 230V
Tap setting Tap setting
INSET A
Bussman Class T Drive Fuse Part No.
AFC Fuse Voltage HP Part No.
1,1.5 JJN-10
2 JJN-15
5 6 7 4
3 JJN-20
5 JJN-25
7.5 JJS-30
200/230 10 JJN-50
15 JJN-60
4
20 JJN-80 5 6 7
25,30 JJN-125
40 FWH-150B
50 FWH-200B
1,1.5 JJS-6
2,3
JJS-10
Fuse Rating (AMPS) - 600V Class LP-CC Time Delay
5 JJS-20
7.5 JJS-25 Primary Transformer Fuses
Line
10 JJS-30
Item
Voltage
15,20 JJS-40
200 1F1,1F2 Bussman
25 JJS-50
1F40
460
1F1,1F2
30 JJS-60 230
1F41 40 JJS-80 460 1F1,1F2
1F1,1F2
50 JJS-100 575
1F42
60 JJS-125
75 FWH-150B
Device Prefix Location Code
100 FWH-200B
Area
125 FWH-250B
1 High voltage panel
1,1.5
JJS-3
2 Low voltage panel (Unit schematic)
2,3 JJS-6
3 Air handler section
5,7.5 JJS-10
10 JJS-15
15 JJS-20
20 JJS-30
25 JJS-35
575
30 JJS-45
40 JJS-60
50 JJS-80
60 JJS-90
75 JJS-100
100 FWP-125A
125 FWP-175B
C
41
1F40
B
7A
L1
1F2
1F41
B 8A
L2
1F42
B 9A
H2 L3
H4
1TB13-1
15A
X2 15B,C,D
15AG
1K42
C
B
1K41
10L
23A,B D
A
1K40
B
1K41
28A
27 5
INT
29A
18 RUN
4
12 +24VDC
1TB13-8
A
+10V REF 53 REF IN
30
1TB13-9
A
COM(-)
55 COM
31
1TB13-10
42
1F2
8
H1
H2
X2 X4
X3
120
1T1
575V
Tap setting
1K3
7
3 2 1 8
1K5
1 8
3 2
MFR. MFR. Part NO. Danfoss NO.
FNQ-R-1.25 34046200
Bussman FNQ-R-1.25 34046200
Bussman FNQ-R-0.60 34046000
FNQ-R-0.50
Bussman 34053600
Location
Installation - Electrical
16
1K40
1OL
Splice
D 4A,B A
T1
T1
1K40
1OL
Splice
D 5A,B A
T2
T2
1K40
1OL
Splice
D 6A,B A T3
T3
1U5
1K41
10A B
U/T1
1K41
11A
B
V/T2
1K41
12A B
W/T3
13A
03
01 Fault signal
240VAC, 2A
02
04
Drive
Run signal
05
50VAC, 1A
Legend
Device
Description
Designation
1CB11
VFD circuit breaker
1F1,1F2
Control circuit primary fuse(s)
1F40,1F41,1F42 AFC fuse(s)
1K3 Supply fan start/stop relay
Supply fan low limit relay
1K5
1K40 Bypass contactor
1K41 Isolation contactor
1K42 Run permissive relay
1OL Overload relay
1S10
VFD/OFF/Bypass Auto/Bypass hand switch
1T1 Primary transformer
1PD1 Supply fan power distribution block
Terminal strip control circuit
1TB13
Drive controller (AFC)
1U5
3B1
Supply fan motor
Notes:
Dashed lines indicate recommended field wiring by others.
1
Phantom lines indicate control option.
Ref. Control panel schematic for specific detail.
All field wiring must be in accordance with the National
2
Electrical Code (NEC), state and local requirements. Other
countries applicable national and/or local requirements
shall apply. Field conductors shall have insulation
rating not less than 600v copper conductors only.
The minimum circuit ampacity, the maximum fuse size, and
3
disconnect size are calculated based on the inverter input
line currents per article 430-2 of the National Electrical
Code.
4 Program terminal 18 as run.
5 Program terminal 27 inv. coasting stop.
6 Closes to run auto mode or bypass auto for option VFD or
starter.
7
Relay(s)--contacts: silver-cadmium oxide: 1/6 hp 5 amp @ 120V
AC, 1/3 hp 5 amp @240V AC. See 24V schematic diagram for
coil connections and actual quantity of transformer relays.
8 Control transformer shown for 460V primary. For 200 or
230V or 575V refer to Inset A.
If unit has shipping splits wiring will terminate to module at
12
each shipping split.
16 The overload relay trip setting must be adjusted to
Correspond with the motor full load current as shown on
the motor nameplate.
27 Attach ground or equipment ground.
M
3
119