Download (Sami GS) User`s Manual

SAMI GS
Table 10-1. IGBT module measurements
(Collector - Emitter) ACS 501-004 -3 ... 006 -3,
005-5 ... 009-5.
Multimeter
X3
Multimeter
X2
Reading
+
+
+
+
+
+
U2
U2
V2
V2
W2
W2
−
−
−
−
−
−
+
−
+
−
+
−
≅ 0.4 V
∞
≅ 0.4 V
∞
≅ 0.4 V
∞
−
−
−
−
−
−
U2
U2
V2
V2
W2
W2
+
+
+
+
+
+
+
−
+
−
+
−
∞
≅ 0.4 V
∞
≅ 0.4 V
∞
≅ 0.4 V
Table 10-3. IGBT module measurements
(ACS 501-009 -3 ...060-3, 011-5 ... 070-5).
Example: Connect + wire to C1 and - wire to
E1. The reading should be ∞.
Multimeter
+
−
+
+
Multimeter
MC
Card
Multimeter
+
+
+
+
+
+
+
+
+
+
+
+
G1
G1
G2
G2
G3
G3
G4
G4
G5
G5
G6
G6
−
−
−
−
−
−
−
−
−
−
−
−
X2
X3
Read.
[V]
U2
≅ 1.5
≅ 1.5
≅ 1.5
≅ 1.5
≅ 1.5
≅ 1.5
≅ 1.2
≅ 1.2
≅ 1.2
≅ 1.2
≅ 1.2
≅ 1.2
+
V2
+
W2
+
U2
−
−
−
V2
W2
C_
C_
B_
B_
Transistor
Reading
E_
E_
C_
E_
∞
≅ 0.35 V
∞
∞
−
+
−
−
C1
B1
E1
Example: Connect the + wire to the U2 pole of
terminal X3 and the - wire to the + pole of
terminal X2. The reading should be approx.
0.4 V. Refer to Figure 10-2 for measuring
points.
Note! If terminal X2 is marked R+ and R- ,
measure + and - from the DC link capacitors
(see Figure10-2).
Table 10-2. IGBT module measurements
(Gate (Base)- Emitter and Gate (Base)Collector).
ACS 501-004 -3 ... 006 -3, 005-5 ... 009-5.
Tran- Multisistor meter
E1
C2
B2
E2
E2
Checking rectifier
ACS 501-004-3 ... 006-3
ACS 501-005-5 ... 009-5
1. Disconnect SAMI from the mains.
2. Ensure (see page 29) that the SAMI is safe
before proceeding with these measurements.
3. Disconnect all the control wiring (X50 can
be disconnected in one piece) from the
Control Interface Card and remove the
Card to allow access to the Motor Control
Card.
4. Disconnect the choke wires from terminals
X6, X7, X8 and X9.
5. Select Diode Test function from the
multimeter. If your multimeter does not
have a Diode Test function, proceed to
"Alternative measurement" on page 84.
83