PCR-M 45
Chapter 3 Operation
• The limit value takes precedence over the setting value for voltage and
frequency. If the current setting value exceeds the limit range when the voltage
or frequency limit value is
changed, the setting value (voltage or frequency) is
set to a limit value that is closest to the current setting value.
■ Current limit value and current limit operation
The current limit value of the output current can be specified.
Table 3-7 Selectable range of current limit values
The operation to be carried out when the current limit is exceeded can be selected.
page 48, 51
Table 3-8 Types of current limit operations
■ Setting the voltage upper and lower limits
You cannot set the voltage outside the limit range. Set the limit so that the upper
limit is greater than or equal to the lower limit.
Table 3-9 Selectable range of voltage limit values
■ Frequency upper and lower limits
Cannot be set in DC mode. You cannot set the frequency outside the limit range. Set
the limit so that the upper limit is greater than or equal to the lower limit.
Table 3-10 Selectable range of frequency limit values
Output Mode
Limit
PCR500M PCR1000M PCR2000M
AC mode 0.10 A to 5.25 A 0.20 A to 10.50 A 0.40 A to 21.00 A
DC mode 0.10 A to 4.2 A 0.20 A to 8.40 A 0.40 A to 16.80 A
See
Current Limit
Operation
Display Function
TRIP
Turns the OUTPUT off and activates the alarm when an overload
condition lasts more than 3 seconds.
LIMIT
CONTROL
Decreases the output voltage so that the current does not exceed
the limit when an overload occurs (software CC operation
*1
).
*1. It is calculated for the RMS value. Due to the relation between the processing time of
measurement and the voltage resolution, it may take a few seconds to exceed the value of
current limit.
Output Mode Voltage Range Lower Limit Upper Limit
AC mode
135 V 0.0 V to 137.5 V 0.0 V to 275.0 V
270 V 0.0 V to 275.0 V 0.0 V to 275.0 V
DC mode
135 V -388.0 V to 194.0 V -194.0 V to 388.0 V
270 V -388.0 V to 388.0 V -388.0 V to 388.0 V
Output Mode Lower Limit Upper Limit
AC mode 40.0 Hz to 500.0 Hz 40.0 Hz to 500.0 Hz
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