NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
230 BU 0200 en-3118
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E011
11.0 Customer interface
Error in analog-digital converter
• Internal customer unit (internal data bus) faulty or
damaged by radio radiation (EMC)
• Check control connections for short-circuit.
• Minimize EMC interference by laying control and
power cables separately.
• Earth the devices and shields well.
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12.0 External watchdog
The Watchdog function is selected at a digital input and the
impulse at the corresponding digital input is not present for
longer than the time set in parameter P460 >Watchdog
time<.
• Check connections
• Check setting P460
12.1 Limit moto./Customer
"Drive switch-off limit"
The drive switch-off limit (P534 [-01]) has triggered.
• Reduce load on motor
• Set higher value in (P534 [-01]).
12.2 Limit gen.
"Generator switch-off limit"
The generator switch-off limit (P534 [-02]) has triggered.
• Reduce load on motor
• Set higher value in (P534 [-02]).
12.3 Torque limit
Limit from potentiometer or setpoint source has switched off.
P400 = 12
12.4 Current limit
Limit from potentiometer or setpoint source has switched off.
P400 = 14
12.5 Load monitor
Switch-off due to overshooting or undershooting of
permissible load torques ((P525) … (P529)) for the time set
in (P528).
• Adjust load.
• Change limit values ((P525) ... (P527)).
• Increase delay time (P528).
• Change monitoring mode (P529).
12.8 AI minimum
„Analogue In minimum“
Switch-off due to undershooting of the 0% adjustment value
(P402) with setting (P401) "0-10V with switch-off on error 1"
or "....2"
12.9 AI maximum
„Analogue In maximum“
Switch-off due to overshooting of the 100% adjustment
value (P402) with setting (P401) "0-10V with switch-off on
error 1" or "....2"
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