ZIEHL MS 220 DA, Operating Instructions Manual

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Programming example 2
Par. 5-19 Terminal 37 Safe Stop
[6] PTC 1 & Relay Alarm In case the motor temperature is too high or in case of a PTC failure, the MCB 112 activates the Safe Stop of the
FC 302 (Safe Stop terminal 37 goes LOW (active) and digital input 33 goes HIGH (active)). This parameter decides
the consequence of the Safe Stop. With this choice the FC 302 coasts and "PTC 1 SafeStop [A71]" is displayed
in the LCP. The drive must be manually reset from LCP, digital input or fieldbus when the conditions of the PTC
are acceptable again (temperature of motor has dropped). An emergency stop can also activate the Safe Stop
of the FC 302 (Safe Stop terminal 37 goes LOW (active) but digital input 33 is not triggered by MCB 112 X44/ 10
as the MCB 112 did not need to activate the Safe Stop, hence digital input 33 remains HIGH (inactive)).
Par. 5-15 Terminal 33 Digital Input
[80] PTC Card 1 Connects the Digital Input of terminal 33 in the FC 302 to the MCB 112 which makes it possible for the MCB 112
to indicate when Safe Stop has been activated from here
Alternatively, par. 5-19 could be set to [7] (PTC 1 & Relay Warning), what means an automatic restart when the conditions of the PTC circuit and/ or
emergency stop circuit have returned to normal. The choice depends on customer demands. Also, the setting of parameter 5-19 could be [8] (PTC 1 &
Relay A/W) or [9] (PTC 1 & Relay W/A), which are combinations of alarm and warning. The choice depends on the customer needs.
NB!
Selection [4] – [9] in par. 5-19 will only be visible in case the MCB 112 is plugged into the B-option slot.
Take care that the DI that is set to [80] is not also configured as Thermistor Resource (motor protection) in par. 1-93.
Please refer to Parameter settings for external safety device in combination with MCB 112 in the Introduction to FC 300 section for more information
about the combination.
6 Application Example MCB 112 VLT ® PTC Thermistor Option
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MG.33.V2.02 - VLT ® is a registered Danfoss trademark
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