8
08/06
3.3
Electrical installation
Danger! If the following instructions are not complied with, there is direct danger
with the possible consequences of death or severe injury by electrical
current. Further, failure to comply can lead to destruction of the fre-
quency inverter and/or of the expansion module.
•
Before electrical installation of the EM-RES-02 expansion module, the frequency
inverter must be de-energized. Take appropriate measures to make sure it is not
energized unintentionally.
•
Make sure that the frequency inverter is de-energized.
Danger! The mains, direct voltage and motor sockets can have dangerous voltages
even after disconnection of the frequency inverter. Work may only be
done on the device after a waiting period of some minutes until the DC
link capacitors have been discharged.
3.3.1
Circuit diagram
6
X410A
X410B
5
6
7
5
EM-RFOUT B+
EM-RFOUT A+
7
3
1
2
4
B
B
C
EM-S1INA
A
D
GND
EM-RFOUT R-
EM-RFOUT R+
EM-RFOUT B-
EM-RES SIN+
4
EM-RES REF-
EM-RES REF+
3
1
2
EM-RES SIN-
EM-RES COS-
EM-RES COS+
EM-RFOUT A-
R
D
1
1
2
2
A
Resolver interface EM-RES
A
1
Field voltage U
REF
eff
= 4 V, I
max
= 60 mA
A
2
Input voltage U
min eff
= 2 V, voltage-proof until 30 V
The resolver interface is suitable for connecting commercial resolvers with the follow-
ing specifications:
Input impedance > 95
Ω
at 5 kHz, 10 kHz, 20 kHz, no. of pole pairs: up to 24,
30 000 rpm at no. of pole pairs = 1
phase displacement (at field frequency): 7 ° (5 kHz), 14 ° (10 kHz), 26 ° (20 kHz)
B
Repetition frequency output EM-RFOUT
B
1
Frequency signal, f
max
= 512 kHz, overload and short-circuit proof,
I
max
=
±
60 mA at min. permissible line termination 150
Ω
,
TTL (push-pull) according to specification RS-422A / RS-485: U
max
= 5 V
B
2
Reference signal
C
Analog input EM-S1INA
Analog signal, resolution 12 Bit,
U
max
=
±
10 V (Ri = 100 k
Ω
), I
max
=
±
20 mA (Ri = 250
Ω
)
