Frequently Asked Questions about Fast Rolling Doors
From:SEPPES Author:Nova JEE-008618151073083 Publish time:2021-10-29 09:49 Clicks:17
1. The brake slip problem of fast rolling door
a. Reason: The compression spring force is reduced. Solution: Replace the spring.
b. Reason: The brake pads of the fast rolling door are stained with oil.
Solution: Clean with gasoline.
2. the troubleshooting of the motor of the fast rolling door does not start,
a.The wire is broken. Solution: Find the connected wire.
b.The relay coil is broken or oxidized and contaminated. Solution: Replace the relay or polish the contacts.
c The normally closed contact of the limit switch is not open. Solution: Polish the contacts or replace the limit switch.
d. The bridge rectifier is broken or the electromagnetic coil is broken, and the brake is stuck. Solution: Replace the bridge rectifier or electromagnetic coil.
e. Overheating protection fails. Solution: Replace the overheat protector.
f. The running capacitor is damaged. Solution: Replace the running capacitor.
g. The continuous running time is too long and the thermal protection is disconnected.
Solution: Reduce the motor temperature.