Installation and Operating Instructions for
Brake Caliper DV 020 FEM,
spring activated
– electromagnetic released
E 09.772e
Issue: 08.09.2021
Version: 2
drawn:MAYA
checked: EISF
Pages: 15
Page: 8
Caution! Danger of damage!
Before connecting the brake caliper to the power supply, check that your power
supply corresponds to the specifications for rated voltage and mains frequency on
the nameplate. In case of deviations, never connect the brake caliper, as otherwise
the electronics and the electromagnet of the brake caliper will be destroyed.
The customer must provide suitable surge protection to prevent voltage peaks
reaching the electronics.
Nominal voltage: 230..240 V AC, 50/60 Hz, single-phase.
Line protection : 6 A,
protection has to be ensured by the user!
Outer diameter of the supply cable: 5 -10 mm (cCSAus); plug type (standard): 6-8mm.
Supply cable
: 0,5-1,0 mm² (AWG 21- 18), fine wire, only copper cables are allowed.
When switched on, currents of up to 3 A occur for 0,7s. After that the current is about 0,6 A.
The brake caliper is actuated by switching the supply voltage on and off. On the electronics there
is a free-wheeling diode which suppresses a switch-off overvoltage when the supply voltage is
switched off. An autotransformer may be used for voltage reduction if its power rating is at least
0.3 kVA.The cable shall be selected according to the Canadian Electrical Code, part 1 or National
Electrical Code (NEC).
Pass the cable through the cable gland and connect the wires L, N, PE according to figure 8.2 or
8.3. The connections L and N can be swapped. Tightening torque of the connector screw is 6 lb-
in.
See also chapter 14 “Electrical connection drawing 4457-000002”.
Fig. 8.2 (cCSAus)
Fig. 8.3
8.4 Adjustment / readjustment of the friction block distance
The friction block distance is adjusted after mounting the brake caliper by adjusting / readjusting
with the adjusting screw (3). The distance between the friction blocks and the brake disc on both
sides should be approx. 0.4 mm when new. If the friction blocks wear out, brake force must be
adjusted. When reaching a dimension of "X" = 44 mm (see chapter 15) at the latest, brake force
adjustment and adjustment of the friction blocks must be carried out.
Attention!
Before commissioning, the air gap must be set to 0.4 mm on both sides!
The brake must be manually released with the "emergency release nut" (8) prior to adjustment
work. To do this, pull off the rubber cap (9) at the back of the electromagnet and screw the
"emergency release nut" onto the thread of the plunger.
Proceed as follows:
L
N
1 = N
2 = PE
3 = L
4 = not connected
