Lenze MDFQA Operating Instructions - Manual (Page 33)

Electrical installation
Terminal box
Cable glands for the fan terminal box
6
EN
33 Lenze ¯ BA 33.0006 ¯ 3.0
Cable glands for the fan terminal box
Motor type/size Screwed connection
MCA/MQA 20
1 x M 16 x 1.5 22
26
6.4.1 Power connections
MCA; MCS, MQA 20...22, MD LKS, SDSGA, SDSGS
Terminal Standard description Meaning
+
PE PE conductor
U
V
W U
V
W Motor winding phase U
Motor winding phase V
Motor winding phase W
TP1
TP2 TP1
TP2
PTC thermistor
TB1
TB2 TB1
TB2 Thermostat
Thermal NC contact
MCA 26, MQA 26, MDFQA 160
Terminal
Standard description Meaning
+ PE PE conductor
1
2
3 U1
V1
W1 Start of winding phase U
Start of winding phase V
Start of winding phase W
4
5
6 W2
U2
V2 End of winding phase W
End of winding phase U
End of winding phase V
Star connection Delta connection
L1 L2 L3
PE
(W1) (U1) (V1)
(W2) (U2) (V2)
1 2 3
4 5 6
L1 L2 L3
PE
(W1) (U1) (V1)
(W2) (U2) (V2)
1 2 3
4 5 6
6.4.2 Holding brake DC 205 V − connected via rectifier (optionl)
Terminal Standard description Meaning
~ BA1
Connection to L1 −
mains AC−excited brake (rectifier)
~ BA2
Connection to N −
mains
M
3~
L1 N
+ BD1 (factory−set wiring)
Connection of
holding brake +
− BD2 (factory−set wiring)
Connection of
holding brake −
Switching contact, DC switching
6.4.3 Holding brake DC 24 V (optional)
Terminal Standard description Meaning
BD1
BD2 BD1
BD2 Holding brake +
Holding brake −