Siemens Midimaster Eco Reference Manual

ECO REFERENCE MANUAL
16-7
8. Control Signals
The VSD shall have two (2) analogue inputs (0-
10V or 0/4-20mA) and six (6) fully programmable
digital inputs.
The VSD shall accept any of the following speed
setting input signals from the Building
Management System (BMS) or other controls;
• 0-10V DC
• 0-20 mA or 4-20 mA
• Motorised potentiometer using up/down digital
inputs
• Fixed frequencies using digital inputs
• RS485
• Keypad display for local hand operation
The VSD shall have at least one analogue output
signal (0/4-20mA) which can be programmed to:
• Output frequency.
• Output current (load).
• DC-link voltage.
• Motor torque.
• Motor rpm.
• Setpoint frequency.
The VSD shall incorporate two (2) volt-free relay
outputs (240VAC, 1A) for remote indication of the
following:
• Motor running.
• Setpoint speed reached.
• Fault and Warning indication (over-
temperature, over-current, etc.).
• PID high and/or low speed limits reached.
9. Communications
The VSD shall have an RS485 interface as
standard allowing the VSD to be used in
conjunction with an external system within a
multi-drop LAN configuration. The interface shall
allow all the various parameter settings of the
VSD to be programmed via BMS control. In
addition, the VSD shall have the capability to
retain these setting within the non-volatile
EEPROM memory.
The VSD shall incorporate a clear and easy to
operate user-interface panel. The preferred
design is to have a 4 digit green LED display with
a membrane keypad.
An optional multi-language back-lit LCD keypad
display (at least 4 lines of 16 character alpha-
numeric text) shall be available. It shall be able
to be panel door mounted to a protection rating of
IP54 or alternatively used as a portable module
and be able to upload, download and store up to
10 different parameter sets.
The information to be displayed in the VSD
display mode shall be:
• Output frequency (Hz)
• Speed of motor (RPM)
• Status of motor (Running, Stop, Fault, etc.)
• Motor current (A)
• Motor torque (Nm)
• Fault or warning status (Code)
• PID feedback signal (%)
• DC-link voltage (Vdc)
• Setpoint frequency (Hz)
• Motor output voltage (V)
• Serial link status -

Siemens Midimaster Eco Specifications

General

Brand	Siemens
Model	Midimaster Eco
Category	DC Drives
Language	English