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3.3 Electrical connection and operation
The spring-applied single-disc brake must be supplied with
DC voltage. Connection to an AC power source is via a
half-wave, bridge or overexcitation rectifier (25.2). Brakes
with connector box (25) and built-in rectifier (25.2) can be
connected directly to the AC mains. The contact
assignment is shown in Fig. 10/1. Brakes equipped with
connector box (25) and connecting terminal (25.2) resp.
connecting cable must be connected directly to DC
voltage. The customer-specific connecting cable must be
connected to the terminals (25.2) or built-in rectifier (25.2)
by means of a cable gland (14) (PG 11, clamping range 7.5
to 10 mm). Remove the cover (25.1) of the connector box
(25) so that the individual strands of the connecting cable
can be connected to the terminals (25.2) or to the contacts
of the built-in rectifier (25.2).
Brake versions with flying leads or connecting cable do not
have a connector box (25). The wire ends of the flying
leads or cable must be connected directly to the DC power
source.
Rectifier series
Rectifier type
32 07.22B.0
half-wave
32 07.23B.0
bridge
overexcitation
32 17350E..
bridge⇒half-wave
overexcitation
32 17.2.B..
bridge⇒half-wave
Table 10/1: Recommended rectifiers for single-phase AC voltage supply and for connection via terminal (25.2)
Attention!
When fixing the cover (25.1) to the connector box (25), the M
specified in Table 14/1 must be strictly observed. Damage to the flat seal between the connector box (25) and
cover (25.1) must be avoided.
When using brakes with built-in rectifier (25.2), the supply voltage is rectified by means of a half-wave rectifier
(25.2). The built-in rectifier (25.2) can be wired in such a way that AC side switching (normal coupling time t
or DC side switching (short coupling time t
(see Table 8/1, list not exhaustive) for direct brake connection to an AC power source via the built-in connecting
terminal (25.2). Depending on the brake size and torque, voltage ripple due to intermittent power supply may
cause brake humming or incorrect brake operation. Perfect brake operation must be ensured by the user or
system manufacturer by providing suitable electrical controls.
Rated input voltage range
U
/VAC (40-60 Hz)
1
0-500 (±10%)
0-400 (±10%)
48-120 (±10%)
220-415 (±10%)
480-525 (±10%)
110-230 (±10%)
220-415 (±10%)
Specific rectifier specification sheets must be observed!
) is possible (see Fig. 10/1). Various Kendrion rectifiers are available
1
Operating Instructions BA 77 600..A00 // Last updated: 13/03/2020 // Page 10 of 33
Fig. 10/1: Connector box (25) with terminal
(25.2) or rectifier (25.2)
Output voltage
U
/VDC
2
U
• 0.445
1
U
• 0.890
1
U
• 0.890 / U
• 0.445
1
1
U
• 0.890 / U
• 0.445
1
1
tightening torques of the machine screws
A
Max. output current
R-load
L-load
I/ADC
I/ADC
1.6
2.0
1.6
2.0
2.3
3
1.2
1.5
0.8
1.0
)
1
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