5.4.2.3
Absolute value encoder type ERN1387
Pin
Signal
Designation
A
C (cosine)
Commutation signal (cosine)
B
C/ (cosine)
Commutation signal inverse (inverse cosine)
C
D (sine)
Commutation signal (sine)
D
5 V up
Cont5 V voltage supply (positive)
E
0 V un
Ground voltage supply absolute encoder (negative)
F
B (sine)
Analog track B (sine)
G
D/ (sine)
Commutation signal (inverse sine)
H
R
Reference signal
J
R/
Reference signal inverse
K
A (cosine)
Analog track A (cosine)
L
A/ (cosine)
Analog track A invers (cosine invers)
M
B/ (sine)
Analog track B invers (sine invers)
Table 5-4-2-3
5.4.3
Offset
"
Unless otherwise agreed, the absolute encoder offset is set to 0. This is achieved by connecting
DC voltage with
U to +
and
V and W to -
.
"
The absolute encoder may not be mechanically detached to ensure that the factory settings are not
lost. If the absolute encoder has been detached, a new absolute value encoder calibration must be
performed with the frequency inverter. For details of the procedure, refer to the frequency inverter
operating instructions.
5.5
Brake
ZAtop SM180.24/B Brake type ROBA
®
-twinstop
®
(RTW), size 250, 2 x 300 Nm
ZAtop SM180.35/B Brake type ROBA
®
-twinstop
®
(RTW), size 250, 2 x 300 Nm
ZAtop SM180.45/B Brake type ROBA
®
-twinstop
®
(RTW), size 350, 2 x 410 Nm
ZAtop SM180.46/B Brake type ROBA
®
-twinstop
®
(RTW), size 450, 2 x 500 Nm
•
Also refer to the operating instructions for the brake.
5.5.1
Application
•
The brakes are intended for static applications as holding brakes. Dynamic braking must be
restricted to emergency and inspection braking. No wear occurs on a holding brake. This means
that the brake is maintenance free, and only the air gap has to be checked as described in the
“
Maintenance and repair - Inspection intervals - Checking the air gap
”
chapter.
5.5.2
Mechanical releasing
Mechanical release of the brakes is possible by using the manual hand release available as an option.
A brake with a mechanical hand release system is available optionally. The hand release system
cannot be
fi
tted later. The complete brake must be replaced to retro
fi
t the hand release system.
The brake circuits can be opened separately with mechanical hand release.
5.5.3
Release monitoring
•
The brake release monitoring serves as monitoring for redundancy and the operation status of the
brakes.
•
The brake release monitoring has to be evaluated; otherwise the type certi
fi
cate is not
ful
fi
lled! The change of state of both brake circuits have to be monitored separately.
•
Release monitoring for the brakes is carried out by a microswitch or inductive proximity switch. For
technical data, see chapter "Appendix - Technical data - Microswitch or inductive proximity switch".
5.5.4
Brake control
5.5.4.1
Contactorless - ZAsbc4
Electronic and noise-free activation of the brake.
The brake operating mode is set on site.
For information on installation and commissioning, refer to the ZAsbc4 operating instructions.
Original operating instructions
ZAtop
–
model series SM180
Electrical installation
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