T221120 ZIEHL | Alldatasheet
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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de MS40ZT Part number: T221120 AC 220-240 V PTC-Resistor-Relay Type MS40ZT for Elevators Technical Data Rated supply voltage US connectable PTC resistors switching point output relay type of contact test conditions rated ambient temperature range dimensions (h x w x d) attach- ment protection housing / terminals weight AC 220 - 240 V ±10 %, 50/60 Hz, 3VA 1... 6 PTC according to DIN 44 081 or 44 082 < 4000 Ω 1 change-over contact (co) type 2 (see "general technical informations") see "general technical informations" -20... +55 ∞C design S 12: 82 x 42 x 121 [ mm ] on 35 mm DIN rail according to DIN EN 50 022 or with screws M4 IP 30 / IP 20 approx. 280 g The PTC-resistor relay MS40ZT monitors particularly engines at elevator cars and lifts. A pulse input monitors the move- ment of the elevator car as long as the motor is switched on. watchdog timing adjustable 5 - 50 s. temperature monitoring with PTC-resistor integrated RESET-button LED for temperatur alarm LED for watchdog alarm At elevator systems the temperature of the motor and the travelling motion have to be monitored. With the car at rest and contact between terminals 2 and 5 closed, the integrated relay picks up (terminals 8, 9 connec - ted). The time monitoring starts with the opening of the contact between terminals 2 and 5. Then the pulse input between terminals 3 and 6 must continously open and close during travelling motion. When the pulse stops or